---
_id: '9749'
abstract:
- lang: eng
  text: Piezoelectric materials find wide application in technical systems. Most often,
    a combination of piezoelectric and other materials is advantageous. The position
    and the amount of the piezoelectric material within the overall system depends
    on various aspects like maximum mechanical output to the load, maximum electromechanical
    efficiency of the system, maximum utilization of the piezoelectric material, minimum
    self-heating of the piezoelectric material, and controllability of the system,
    which might be key aspects for the optimisation of the system design. For a composite
    longitudinal vibrator (bolted Langevin transducer), which is a base for many technical
    applications, this contribution shows in detail, how above mentioned aspects depend
    on the position and volume of the piezoelectric material related to the mode shape.
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Ernst Günther
  full_name: Lierk, Ernst Günther
  last_name: Lierk
- first_name: Walter
  full_name: Littmann, Walter
  last_name: Littmann
- first_name: Takeshi
  full_name: Morita, Takeshi
  last_name: Morita
citation:
  ama: Hemsel T, Lierk EG, Littmann W, Morita T. Various Aspects of the Placement
    of a Piezoelectric Material in Composite Actuators, Motors, and Transducers. <i>Journal
    of Korean Physical Society</i>. 2010;57(4):933-937. doi:<a href="https://doi.org/10.3938/jkps.57.933">10.3938/jkps.57.933</a>
  apa: Hemsel, T., Lierk, E. G., Littmann, W., &#38; Morita, T. (2010). Various Aspects
    of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and
    Transducers. <i>Journal of Korean Physical Society</i>, <i>57</i>(4), 933–937.
    <a href="https://doi.org/10.3938/jkps.57.933">https://doi.org/10.3938/jkps.57.933</a>
  bibtex: '@article{Hemsel_Lierk_Littmann_Morita_2010, title={Various Aspects of the
    Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers},
    volume={57}, DOI={<a href="https://doi.org/10.3938/jkps.57.933">10.3938/jkps.57.933</a>},
    number={4}, journal={Journal of Korean Physical Society}, author={Hemsel, Tobias
    and Lierk, Ernst Günther and Littmann, Walter and Morita, Takeshi}, year={2010},
    pages={933–937} }'
  chicago: 'Hemsel, Tobias, Ernst Günther Lierk, Walter Littmann, and Takeshi Morita.
    “Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators,
    Motors, and Transducers.” <i>Journal of Korean Physical Society</i> 57, no. 4
    (2010): 933–37. <a href="https://doi.org/10.3938/jkps.57.933">https://doi.org/10.3938/jkps.57.933</a>.'
  ieee: T. Hemsel, E. G. Lierk, W. Littmann, and T. Morita, “Various Aspects of the
    Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers,”
    <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp. 933–937, 2010.
  mla: Hemsel, Tobias, et al. “Various Aspects of the Placement of a Piezoelectric
    Material in Composite Actuators, Motors, and Transducers.” <i>Journal of Korean
    Physical Society</i>, vol. 57, no. 4, 2010, pp. 933–37, doi:<a href="https://doi.org/10.3938/jkps.57.933">10.3938/jkps.57.933</a>.
  short: T. Hemsel, E.G. Lierk, W. Littmann, T. Morita, Journal of Korean Physical
    Society 57 (2010) 933–937.
date_created: 2019-05-13T09:56:22Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.3938/jkps.57.933
intvolume: '        57'
issue: '4'
keyword:
- Bolted Langevin transducer
- Optimum placement of piezoelectric ceramics
language:
- iso: eng
page: 933-937
publication: Journal of Korean Physical Society
publication_identifier:
  issn:
  - 1948-5719
quality_controlled: '1'
status: public
title: Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators,
  Motors, and Transducers
type: journal_article
user_id: '55222'
volume: 57
year: '2010'
...
---
_id: '9750'
author:
- first_name: D.
  full_name: Hess, D.
  last_name: Hess
- first_name: Thorsten
  full_name: Hüfner, Thorsten
  last_name: Hüfner
- first_name: Tobias
  full_name: Hesse, Tobias
  last_name: Hesse
- first_name: Christoph
  full_name: Sondermann-Wölke, Christoph
  last_name: Sondermann-Wölke
- first_name: Thomas
  full_name: Sattel, Thomas
  last_name: Sattel
citation:
  ama: Hess D, Hüfner T, Hesse T, Sondermann-Wölke C, Sattel T. Intelligente mechatronische
    Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen. <i>Internationales
    Mechatronik-Kolloquium “Mechatronik 2010.”</i> 2010.
  apa: Hess, D., Hüfner, T., Hesse, T., Sondermann-Wölke, C., &#38; Sattel, T. (2010).
    Intelligente mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen.
    <i>Internationales Mechatronik-Kolloquium “Mechatronik 2010.”</i>
  bibtex: '@article{Hess_Hüfner_Hesse_Sondermann-Wölke_Sattel_2010, title={Intelligente
    mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen},
    journal={Internationales Mechatronik-Kolloquium “Mechatronik 2010”}, author={Hess,
    D. and Hüfner, Thorsten and Hesse, Tobias and Sondermann-Wölke, Christoph and
    Sattel, Thomas}, year={2010} }'
  chicago: Hess, D., Thorsten Hüfner, Tobias Hesse, Christoph Sondermann-Wölke, and
    Thomas Sattel. “Intelligente Mechatronische Systeme Zur Automatisierten Fahrzeugführung
    in Fahrerassistenzsystemen.” <i>Internationales Mechatronik-Kolloquium “Mechatronik
    2010,”</i> 2010.
  ieee: D. Hess, T. Hüfner, T. Hesse, C. Sondermann-Wölke, and T. Sattel, “Intelligente
    mechatronische Systeme zur automatisierten Fahrzeugführung in Fahrerassistenzsystemen,”
    <i>Internationales Mechatronik-Kolloquium “Mechatronik 2010,”</i> 2010.
  mla: Hess, D., et al. “Intelligente Mechatronische Systeme Zur Automatisierten Fahrzeugführung
    in Fahrerassistenzsystemen.” <i>Internationales Mechatronik-Kolloquium “Mechatronik
    2010,”</i> 2010.
  short: D. Hess, T. Hüfner, T. Hesse, C. Sondermann-Wölke, T. Sattel, Internationales
    Mechatronik-Kolloquium “Mechatronik 2010” (2010).
date_created: 2019-05-13T09:58:41Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
language:
- iso: eng
publication: Internationales Mechatronik-Kolloquium "Mechatronik 2010"
status: public
title: Intelligente mechatronische Systeme zur automatisierten Fahrzeugführung in
  Fahrerassistenzsystemen
type: journal_article
user_id: '55222'
year: '2010'
...
---
_id: '9751'
abstract:
- lang: eng
  text: 'Piezoelectric inertia motors have a simple construction and are controlled
    by a single driving signal. This allows for miniaturization and low cost production.
    One of the main questions to be answered during the design process of a piezoelectric
    inertia motor is which electrical excitation signal yields optimum motor characteristics.
    Three signals and their variants are widely used in literature: sawtooth, parabolic
    and cycloidic signals. It can be shown that neither of these can drive the motor
    at its maximum possible velocity in non-resonant operation. Within this paper
    we propose to use a rigid body model of a simple inertia motor to predict the
    motor characteristics depending on the movement pattern of the driving element.
    Advantages and disadvantages of three different drive signals that maximize the
    motor velocity are discussed.'
author:
- first_name: Matthias
  full_name: Hunstig, Matthias
  last_name: Hunstig
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Hunstig M, Hemsel T. Drive Signals for Maximizing the Velocity of Piezoelectric
    Inertia Motors. <i>Journal of Korean Physical Society</i>. 2010;57(4):938-941.
    doi:<a href="https://doi.org/10.3938/jkps.57.938">10.3938/jkps.57.938</a>
  apa: Hunstig, M., &#38; Hemsel, T. (2010). Drive Signals for Maximizing the Velocity
    of Piezoelectric Inertia Motors. <i>Journal of Korean Physical Society</i>, <i>57</i>(4),
    938–941. <a href="https://doi.org/10.3938/jkps.57.938">https://doi.org/10.3938/jkps.57.938</a>
  bibtex: '@article{Hunstig_Hemsel_2010, title={Drive Signals for Maximizing the Velocity
    of Piezoelectric Inertia Motors}, volume={57}, DOI={<a href="https://doi.org/10.3938/jkps.57.938">10.3938/jkps.57.938</a>},
    number={4}, journal={Journal of Korean Physical Society}, author={Hunstig, Matthias
    and Hemsel, Tobias}, year={2010}, pages={938–941} }'
  chicago: 'Hunstig, Matthias, and Tobias Hemsel. “Drive Signals for Maximizing the
    Velocity of Piezoelectric Inertia Motors.” <i>Journal of Korean Physical Society</i>
    57, no. 4 (2010): 938–41. <a href="https://doi.org/10.3938/jkps.57.938">https://doi.org/10.3938/jkps.57.938</a>.'
  ieee: M. Hunstig and T. Hemsel, “Drive Signals for Maximizing the Velocity of Piezoelectric
    Inertia Motors,” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, pp.
    938–941, 2010.
  mla: Hunstig, Matthias, and Tobias Hemsel. “Drive Signals for Maximizing the Velocity
    of Piezoelectric Inertia Motors.” <i>Journal of Korean Physical Society</i>, vol.
    57, no. 4, 2010, pp. 938–41, doi:<a href="https://doi.org/10.3938/jkps.57.938">10.3938/jkps.57.938</a>.
  short: M. Hunstig, T. Hemsel, Journal of Korean Physical Society 57 (2010) 938–941.
date_created: 2019-05-13T10:03:06Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.3938/jkps.57.938
intvolume: '        57'
issue: '4'
language:
- iso: eng
page: 938-941
publication: Journal of Korean Physical Society
publication_identifier:
  issn:
  - 1948-5719
quality_controlled: '1'
status: public
title: Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors
type: journal_article
user_id: '55222'
volume: 57
year: '2010'
...
---
_id: '9752'
abstract:
- lang: eng
  text: Piezoelectric inertia motors make use of the inertia of a slider to drive
    the slider by friction contact in a series of small steps which are generally
    composed of a stick phase and a slip phase. If the best electrical drive signal
    for the piezoelectric actuator in an inertia motor is to be determined, its dynamical
    behaviour must be known. A classic dynamic lumped parameter model for piezoelectric
    actuators is valid only in resonance and, therefore, is not suitable for modelling
    the actuator in an inertia motor. A reduced dynamic model is used instead. Its
    parameters are identified using a step response measurement. This model is used
    to predict the movement of the actuator in response to a velocity-optimized signal
    introduced in a separate contribution. Results show that the model cannot represent
    the dynamical characteristics of the actuator completely. For determining voltage
    signals that let piezoelectric actuators follow a calculated movement pattern
    exactly, the model can, therefore, only be used with limitations.
author:
- first_name: Matthias
  full_name: Hunstig, Matthias
  last_name: Hunstig
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Hunstig M, Hemsel T. Parameter Identification and Model Validation for the
    Piezoelectric Actuator in an Inertia Motor. <i>Journal of Korean Physical Society</i>.
    2010;57(4):952-954. doi:<a href="https://doi.org/10.3938/jkps.57.952">10.3938/jkps.57.952</a>
  apa: Hunstig, M., &#38; Hemsel, T. (2010). Parameter Identification and Model Validation
    for the Piezoelectric Actuator in an Inertia Motor. <i>Journal of Korean Physical
    Society</i>, <i>57</i>(4), 952–954. <a href="https://doi.org/10.3938/jkps.57.952">https://doi.org/10.3938/jkps.57.952</a>
  bibtex: '@article{Hunstig_Hemsel_2010, title={Parameter Identification and Model
    Validation for the Piezoelectric Actuator in an Inertia Motor}, volume={57}, DOI={<a
    href="https://doi.org/10.3938/jkps.57.952">10.3938/jkps.57.952</a>}, number={4},
    journal={Journal of Korean Physical Society}, author={Hunstig, Matthias and Hemsel,
    Tobias}, year={2010}, pages={952–954} }'
  chicago: 'Hunstig, Matthias, and Tobias Hemsel. “Parameter Identification and Model
    Validation for the Piezoelectric Actuator in an Inertia Motor.” <i>Journal of
    Korean Physical Society</i> 57, no. 4 (2010): 952–54. <a href="https://doi.org/10.3938/jkps.57.952">https://doi.org/10.3938/jkps.57.952</a>.'
  ieee: M. Hunstig and T. Hemsel, “Parameter Identification and Model Validation for
    the Piezoelectric Actuator in an Inertia Motor,” <i>Journal of Korean Physical
    Society</i>, vol. 57, no. 4, pp. 952–954, 2010.
  mla: Hunstig, Matthias, and Tobias Hemsel. “Parameter Identification and Model Validation
    for the Piezoelectric Actuator in an Inertia Motor.” <i>Journal of Korean Physical
    Society</i>, vol. 57, no. 4, 2010, pp. 952–54, doi:<a href="https://doi.org/10.3938/jkps.57.952">10.3938/jkps.57.952</a>.
  short: M. Hunstig, T. Hemsel, Journal of Korean Physical Society 57 (2010) 952–954.
date_created: 2019-05-13T10:04:13Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.3938/jkps.57.952
intvolume: '        57'
issue: '4'
language:
- iso: eng
page: 952-954
publication: Journal of Korean Physical Society
publication_identifier:
  issn:
  - 1948-5719
quality_controlled: '1'
status: public
title: Parameter Identification and Model Validation for the Piezoelectric Actuator
  in an Inertia Motor
type: journal_article
user_id: '55222'
volume: 57
year: '2010'
...
---
_id: '9753'
abstract:
- lang: eng
  text: 'Piezoelektrische Trägheitsmotoren nutzen die Trägheit einer bewegten Masse,
    um diese in kleinen Schritten durch abwechselnde Haft- und Gleitphasen voranzutreiben.
    Eine Kernfrage bei der Entwicklung eines piezoelektrischen Trägheitsmotors ist,
    welches elektrische Ansteuersignal für das gewünschte Motorverhalten optimal ist.
    Das elektrische Signal führt zu einer Bewegung des piezoelektrischen Aktors und
    damit der Antriebsstange, die den reibschlüssigen Vortrieb bewirkt. Entsprechend
    wird diese Fragestellung in zwei Teilen untersucht: Anhand eines Starrkörpermodells
    werden zunächst Bewegungsverläufe für die Antriebsstange ermittelt, mit denen
    die maximale Geschwindigkeit erreicht wird. Dabei werden drei Antriebsmodi identifiziert.
    Mit allen kann eine höhere Geschwindigkeit als mit der heute häufig verwendeten
    Sägezahnanregung erreicht werden. Anschließend wird ein einfaches dynamisches
    Modell eines piezoelektrischen Aktors genutzt, um die notwendigen elektrischen
    Ansteuersignale für die verschiedenen Antriebsmodi zu bestimmen. Es zeigt sich,
    dass das gewählte einfache Modell hierzu nur bedingt geeignet ist.'
author:
- first_name: Matthias
  full_name: Hunstig, Matthias
  last_name: Hunstig
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Hunstig M, Hemsel T, Sextro W. Anregungskonzepte und Modellierung piezoelektrischer
    Trägheitsmotoren. In: Gausemeier J, Rammig F, Schäfer W, Trächtler A, eds. <i>7.
    Paderborner Workshop Entwurf Mechatronischer Systeme</i>. Vol 272. HNI-Verlagsschriftenreihe.
    Paderborn: Heinz Nixdorf Institut, Universität Paderborn; 2010:129-141.'
  apa: 'Hunstig, M., Hemsel, T., &#38; Sextro, W. (2010). Anregungskonzepte und Modellierung
    piezoelektrischer Trägheitsmotoren. In J. Gausemeier, F. Rammig, W. Schäfer, &#38;
    A. Trächtler (Eds.), <i>7. Paderborner Workshop Entwurf mechatronischer Systeme</i>
    (Vol. 272, pp. 129–141). Paderborn: Heinz Nixdorf Institut, Universität Paderborn.'
  bibtex: '@inproceedings{Hunstig_Hemsel_Sextro_2010, place={Paderborn}, series={HNI-Verlagsschriftenreihe},
    title={Anregungskonzepte und Modellierung piezoelektrischer Trägheitsmotoren},
    volume={272}, booktitle={7. Paderborner Workshop Entwurf mechatronischer Systeme},
    publisher={Heinz Nixdorf Institut, Universität Paderborn}, author={Hunstig, Matthias
    and Hemsel, Tobias and Sextro, Walter}, editor={Gausemeier, Jürgen and Rammig,
    Franz and Schäfer, Wilhelm and Trächtler, AnsgarEditors}, year={2010}, pages={129–141},
    collection={HNI-Verlagsschriftenreihe} }'
  chicago: 'Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Anregungskonzepte
    Und Modellierung Piezoelektrischer Trägheitsmotoren.” In <i>7. Paderborner Workshop
    Entwurf Mechatronischer Systeme</i>, edited by Jürgen Gausemeier, Franz Rammig,
    Wilhelm Schäfer, and Ansgar Trächtler, 272:129–41. HNI-Verlagsschriftenreihe.
    Paderborn: Heinz Nixdorf Institut, Universität Paderborn, 2010.'
  ieee: M. Hunstig, T. Hemsel, and W. Sextro, “Anregungskonzepte und Modellierung
    piezoelektrischer Trägheitsmotoren,” in <i>7. Paderborner Workshop Entwurf mechatronischer
    Systeme</i>, 2010, vol. 272, pp. 129–141.
  mla: Hunstig, Matthias, et al. “Anregungskonzepte Und Modellierung Piezoelektrischer
    Trägheitsmotoren.” <i>7. Paderborner Workshop Entwurf Mechatronischer Systeme</i>,
    edited by Jürgen Gausemeier et al., vol. 272, Heinz Nixdorf Institut, Universität
    Paderborn, 2010, pp. 129–41.
  short: 'M. Hunstig, T. Hemsel, W. Sextro, in: J. Gausemeier, F. Rammig, W. Schäfer,
    A. Trächtler (Eds.), 7. Paderborner Workshop Entwurf Mechatronischer Systeme,
    Heinz Nixdorf Institut, Universität Paderborn, Paderborn, 2010, pp. 129–141.'
date_created: 2019-05-13T10:05:14Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
editor:
- first_name: Jürgen
  full_name: Gausemeier, Jürgen
  last_name: Gausemeier
- first_name: Franz
  full_name: Rammig, Franz
  last_name: Rammig
- first_name: Wilhelm
  full_name: Schäfer, Wilhelm
  last_name: Schäfer
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  last_name: Trächtler
intvolume: '       272'
keyword:
- Piezoelektrischer Trägheitsmotoren
language:
- iso: eng
page: 129-141
place: Paderborn
publication: 7. Paderborner Workshop Entwurf mechatronischer Systeme
publication_identifier:
  issn:
  - 0924-4247
publisher: Heinz Nixdorf Institut, Universität Paderborn
series_title: HNI-Verlagsschriftenreihe
status: public
title: Anregungskonzepte und Modellierung piezoelektrischer Trägheitsmotoren
type: conference
user_id: '55222'
volume: 272
year: '2010'
...
---
_id: '9754'
abstract:
- lang: eng
  text: A model based design approach for improved piezoelectric inertia motors is
    presented. Three velocityoptimized movement patterns for the driving body have
    been derived. The influence of the motor parameters and the process of designing
    an application specific motor with maximum velocity are shown. A simple dynamic
    model of the piezoelectric actuator is used to calculate the voltage signal for
    achieving the desired movement pattern. Observed distortions of the optimum pattern,
    their influence on the motion of the driven body and different methods to reduce
    them are discussed.
author:
- first_name: Matthias
  full_name: Hunstig, Matthias
  last_name: Hunstig
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Hunstig M, Hemsel T, Sextro W. Improving the Performance of Piezoelectric
    Inertia Motors. In: <i>ACTUATOR 2010 Conference Proceedings</i>. ; 2010:657-661.'
  apa: Hunstig, M., Hemsel, T., &#38; Sextro, W. (2010). Improving the Performance
    of Piezoelectric Inertia Motors. In <i>ACTUATOR 2010 Conference Proceedings</i>
    (pp. 657–661).
  bibtex: '@inproceedings{Hunstig_Hemsel_Sextro_2010, title={Improving the Performance
    of Piezoelectric Inertia Motors}, booktitle={ACTUATOR 2010 Conference Proceedings},
    author={Hunstig, Matthias and Hemsel, Tobias and Sextro, Walter}, year={2010},
    pages={657–661} }'
  chicago: Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Improving the Performance
    of Piezoelectric Inertia Motors.” In <i>ACTUATOR 2010 Conference Proceedings</i>,
    657–61, 2010.
  ieee: M. Hunstig, T. Hemsel, and W. Sextro, “Improving the Performance of Piezoelectric
    Inertia Motors,” in <i>ACTUATOR 2010 Conference Proceedings</i>, 2010, pp. 657–661.
  mla: Hunstig, Matthias, et al. “Improving the Performance of Piezoelectric Inertia
    Motors.” <i>ACTUATOR 2010 Conference Proceedings</i>, 2010, pp. 657–61.
  short: 'M. Hunstig, T. Hemsel, W. Sextro, in: ACTUATOR 2010 Conference Proceedings,
    2010, pp. 657–661.'
date_created: 2019-05-13T10:10:31Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
language:
- iso: eng
page: 657-661
publication: ACTUATOR 2010 Conference Proceedings
publication_identifier:
  issn:
  - 0924-4247
quality_controlled: '1'
status: public
title: Improving the Performance of Piezoelectric Inertia Motors
type: conference
user_id: '55222'
year: '2010'
...
---
_id: '9755'
author:
- first_name: Verena
  full_name: Kraft , Verena
  last_name: 'Kraft '
- first_name: C.
  full_name: Bauch, C.
  last_name: Bauch
- first_name: M.
  full_name: Nückel, M.
  last_name: Nückel
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Kraft  V, Bauch C, Nückel M, Hemsel T. Konzeption und Aufbau eines Langzeitforschungsstandes
    zur lichttechnischen Charakterisierung von organischen Leuchtdioden (OLEDs). In:
    <i>19. Gemeinschaftstagung LICHT 2010</i>. Wien, Österreich; 2010.'
  apa: Kraft , V., Bauch, C., Nückel, M., &#38; Hemsel, T. (2010). Konzeption und
    Aufbau eines Langzeitforschungsstandes zur lichttechnischen Charakterisierung
    von organischen Leuchtdioden (OLEDs). In <i>19. Gemeinschaftstagung LICHT 2010</i>.
    Wien, Österreich.
  bibtex: '@inproceedings{Kraft _Bauch_Nückel_Hemsel_2010, place={Wien, Österreich},
    title={Konzeption und Aufbau eines Langzeitforschungsstandes zur lichttechnischen
    Charakterisierung von organischen Leuchtdioden (OLEDs)}, booktitle={19. Gemeinschaftstagung
    LICHT 2010}, author={Kraft , Verena and Bauch, C. and Nückel, M. and Hemsel, Tobias},
    year={2010} }'
  chicago: Kraft , Verena, C. Bauch, M. Nückel, and Tobias Hemsel. “Konzeption Und
    Aufbau Eines Langzeitforschungsstandes Zur Lichttechnischen Charakterisierung
    von Organischen Leuchtdioden (OLEDs).” In <i>19. Gemeinschaftstagung LICHT 2010</i>.
    Wien, Österreich, 2010.
  ieee: V. Kraft , C. Bauch, M. Nückel, and T. Hemsel, “Konzeption und Aufbau eines
    Langzeitforschungsstandes zur lichttechnischen Charakterisierung von organischen
    Leuchtdioden (OLEDs),” in <i>19. Gemeinschaftstagung LICHT 2010</i>, 2010.
  mla: Kraft , Verena, et al. “Konzeption Und Aufbau Eines Langzeitforschungsstandes
    Zur Lichttechnischen Charakterisierung von Organischen Leuchtdioden (OLEDs).”
    <i>19. Gemeinschaftstagung LICHT 2010</i>, 2010.
  short: 'V. Kraft , C. Bauch, M. Nückel, T. Hemsel, in: 19. Gemeinschaftstagung LICHT
    2010, Wien, Österreich, 2010.'
date_created: 2019-05-13T10:11:42Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
language:
- iso: eng
place: Wien, Österreich
popular_science: '1'
publication: 19. Gemeinschaftstagung LICHT 2010
status: public
title: Konzeption und Aufbau eines Langzeitforschungsstandes zur lichttechnischen
  Charakterisierung von organischen Leuchtdioden (OLEDs)
type: conference
user_id: '55222'
year: '2010'
...
---
_id: '9756'
abstract:
- lang: eng
  text: Dieser Beitrag fasst die bekannten analytischen Berechnungsmethoden für piezoelektrische
    Ultraschallverbundschwinger zusammen und gibt anhand typischer Beispiele Anleitungen
    zur Lösung theoretischer und technischer Fragen bei deren Entwicklung. Zunächst
    werden die passiven, in der Regel metallischen Komponenten von Verbundschwingern
    als Stab- oder Plattensysteme mit homogen verteilten Feder-, Masse und Dämpfungseigenschaften
    beschrieben. Hier breitet sich die Schwingungsenergie in Form stehender und fortschreitender
    Wellen zum akustischen Verbraucher hin aus. Es folgt eine gleichwertige und schaltungstreue
    Darstellung durch elektrische oder mechanische Vierpole, die für den Entwicklungsingenieur
    leichter zu handhaben sind und in Netzwerken direkt mit Masons Ersatzschaltung
    des piezoelektrischen Wandlers gekoppelt werden können. Danach werden die wichtigsten,
    messtechnisch zugänglichen Parameter anhand eines in Resonanznähe zulässigen Ersatzmodells
    mit konzentrierten elektrischen bzw. mechanischen Komponenten definiert. Als Schwerpunkt
    wird anschließend deren analytische Berechnung und messtechnische Verifizierung
    an typischen Beispielen demonstriert. Es folgen wichtige technische Informationen
    über Frequenzkorrekturen, Schallgeschwindigkeitsdispersion, Leistungs- und Belastbarkeitsgrenzen
    der Komponenten und andere wertvolle praktische Hinweise.
author:
- first_name: Ernst-Günter
  full_name: Lierke, Ernst-Günter
  last_name: Lierke
- first_name: Walter
  full_name: Littmann, Walter
  last_name: Littmann
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Lierke E-G, Littmann W, Hemsel T. Zur Theorie der piezoelektrischen Ultraschallverbundschwinger
    mit praktischen Schlussfolgerungen für den Entwicklungsingenieur. <i>Veröffentlichung
    der Universität Paderborn</i>. 2010.
  apa: Lierke, E.-G., Littmann, W., &#38; Hemsel, T. (2010). Zur Theorie der piezoelektrischen
    Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur.
    <i>Veröffentlichung Der Universität Paderborn</i>.
  bibtex: '@article{Lierke_Littmann_Hemsel_2010, title={Zur Theorie der piezoelektrischen
    Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur},
    journal={Veröffentlichung der Universität Paderborn}, author={Lierke, Ernst-Günter
    and Littmann, Walter and Hemsel, Tobias}, year={2010} }'
  chicago: Lierke, Ernst-Günter, Walter Littmann, and Tobias Hemsel. “Zur Theorie
    Der Piezoelektrischen Ultraschallverbundschwinger Mit Praktischen Schlussfolgerungen
    Für Den Entwicklungsingenieur.” <i>Veröffentlichung Der Universität Paderborn</i>,
    2010.
  ieee: E.-G. Lierke, W. Littmann, and T. Hemsel, “Zur Theorie der piezoelektrischen
    Ultraschallverbundschwinger mit praktischen Schlussfolgerungen für den Entwicklungsingenieur,”
    <i>Veröffentlichung der Universität Paderborn</i>, 2010.
  mla: Lierke, Ernst-Günter, et al. “Zur Theorie Der Piezoelektrischen Ultraschallverbundschwinger
    Mit Praktischen Schlussfolgerungen Für Den Entwicklungsingenieur.” <i>Veröffentlichung
    Der Universität Paderborn</i>, 2010.
  short: E.-G. Lierke, W. Littmann, T. Hemsel, Veröffentlichung Der Universität Paderborn
    (2010).
date_created: 2019-05-13T10:14:21Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
language:
- iso: eng
publication: Veröffentlichung der Universität Paderborn
publication_identifier:
  issn:
  - 1948-5719
status: public
title: Zur Theorie der piezoelektrischen Ultraschallverbundschwinger mit praktischen
  Schlussfolgerungen für den Entwicklungsingenieur
type: journal_article
user_id: '55222'
year: '2010'
...
---
_id: '9757'
author:
- first_name: Raimundas
  full_name: Lucinskis, Raimundas
  last_name: Lucinskis
- first_name: Dalius
  full_name: Mazeika, Dalius
  last_name: Mazeika
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Ramutis
  full_name: Bansevicius, Ramutis
  last_name: Bansevicius
citation:
  ama: Lucinskis R, Mazeika D, Hemsel T, Bansevicius R. The experimental research
    of piezoelectric actuator with two vectors of polarization direction. <i>MECHANIKA</i>.
    2010.
  apa: Lucinskis, R., Mazeika, D., Hemsel, T., &#38; Bansevicius, R. (2010). The experimental
    research of piezoelectric actuator with two vectors of polarization direction.
    <i>MECHANIKA</i>.
  bibtex: '@article{Lucinskis_Mazeika_Hemsel_Bansevicius_2010, title={The experimental
    research of piezoelectric actuator with two vectors of polarization direction},
    journal={MECHANIKA}, author={Lucinskis, Raimundas and Mazeika, Dalius and Hemsel,
    Tobias and Bansevicius, Ramutis}, year={2010} }'
  chicago: Lucinskis, Raimundas, Dalius Mazeika, Tobias Hemsel, and Ramutis Bansevicius.
    “The Experimental Research of Piezoelectric Actuator with Two Vectors of Polarization
    Direction.” <i>MECHANIKA</i>, 2010.
  ieee: R. Lucinskis, D. Mazeika, T. Hemsel, and R. Bansevicius, “The experimental
    research of piezoelectric actuator with two vectors of polarization direction,”
    <i>MECHANIKA</i>, 2010.
  mla: Lucinskis, Raimundas, et al. “The Experimental Research of Piezoelectric Actuator
    with Two Vectors of Polarization Direction.” <i>MECHANIKA</i>, 2010.
  short: R. Lucinskis, D. Mazeika, T. Hemsel, R. Bansevicius, MECHANIKA (2010).
date_created: 2019-05-13T10:18:38Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
language:
- iso: eng
publication: MECHANIKA
publication_identifier:
  issn:
  - 1948-5719
quality_controlled: '1'
status: public
title: The experimental research of piezoelectric actuator with two vectors of polarization
  direction
type: journal_article
user_id: '55222'
year: '2010'
...
---
_id: '9758'
abstract:
- lang: eng
  text: As a lead-free piezoelectric ceramics, (K,Na)NbO$_{3}$ is a promising material
    because of its good piezoelectric properties. In this study, (K$_{1-x}$Na$_{x}$)NbO$_{3}$
    ceramics were synthesized from a KNbO$_{3}$ and NaNbO$_{3}$ mixture powder prepared
    by the hydrothermal reaction. The hydrothermal reaction enables the production
    of high quality powder for the ceramics fabrication process. To obtain (K$_{1-x}$Na$_{x}$)NbO$_{3}$
    ceramics, these two powders KNbO$_{3}$ and NaNbO$_{3}$ were mixed and then sintered
    together. X-Ray diffraction analysis revealed that the solid solution ceramics
    (K$_{1-x}$Na$_{x}$)NbO$_{3}$ was produced by the sintering process. The K/Na ratio
    in (K$_{1-x}$Na$_{x}$)NbO$_{3}$ ceramics was optimized for the best piezoelectric
    properties. The optimized forms was (K$_{0.48}$Na$_{0.52}$)NbO$_{3}$, which showed
    the following piezoelectric properties; k$_{33}$=0.56, d$_{33}$=114pC/N. In addition,
    the ferroelectric properties, P$_{r}$=7.72mC/cm$^{2}$, E$_{c}$=857V/mm, and the
    Curie temperature T$_{c}$=420$_{o}$C were also measured.
author:
- first_name: Takafumi
  full_name: Maeda, Takafumi
  last_name: Maeda
- first_name: Norihito
  full_name: Takiguchi, Norihito
  last_name: Takiguchi
- first_name: Takeshi
  full_name: Morita, Takeshi
  last_name: Morita
- first_name: Mutsuo
  full_name: Ishikawa, Mutsuo
  last_name: Ishikawa
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Maeda T, Takiguchi N, Morita T, Ishikawa M, Hemsel T. Hydrothermal (K1-xNax)NbO3
    Lead-free Piezoelectric Ceramics. <i>Journal of Korean Physical Society</i>. 2010;57(4):924-928.
    doi:<a href="https://doi.org/10.3938/jkps.57.924">10.3938/jkps.57.924</a>
  apa: Maeda, T., Takiguchi, N., Morita, T., Ishikawa, M., &#38; Hemsel, T. (2010).
    Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics. <i>Journal of Korean
    Physical Society</i>, <i>57</i>(4), 924–928. <a href="https://doi.org/10.3938/jkps.57.924">https://doi.org/10.3938/jkps.57.924</a>
  bibtex: '@article{Maeda_Takiguchi_Morita_Ishikawa_Hemsel_2010, title={Hydrothermal
    (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics}, volume={57}, DOI={<a href="https://doi.org/10.3938/jkps.57.924">10.3938/jkps.57.924</a>},
    number={4}, journal={Journal of Korean Physical Society}, author={Maeda, Takafumi
    and Takiguchi, Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Hemsel, Tobias},
    year={2010}, pages={924–928} }'
  chicago: 'Maeda, Takafumi, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa,
    and Tobias Hemsel. “Hydrothermal (K1-XNax)NbO3 Lead-Free Piezoelectric Ceramics.”
    <i>Journal of Korean Physical Society</i> 57, no. 4 (2010): 924–28. <a href="https://doi.org/10.3938/jkps.57.924">https://doi.org/10.3938/jkps.57.924</a>.'
  ieee: T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, and T. Hemsel, “Hydrothermal
    (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics,” <i>Journal of Korean Physical
    Society</i>, vol. 57, no. 4, pp. 924–928, 2010.
  mla: Maeda, Takafumi, et al. “Hydrothermal (K1-XNax)NbO3 Lead-Free Piezoelectric
    Ceramics.” <i>Journal of Korean Physical Society</i>, vol. 57, no. 4, 2010, pp.
    924–28, doi:<a href="https://doi.org/10.3938/jkps.57.924">10.3938/jkps.57.924</a>.
  short: T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, T. Hemsel, Journal of Korean
    Physical Society 57 (2010) 924–928.
date_created: 2019-05-13T10:19:43Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.3938/jkps.57.924
intvolume: '        57'
issue: '4'
keyword:
- Lead-free piezoelectric material
- KNN
- Hydrothermal method
language:
- iso: eng
page: 924-928
publication: Journal of Korean Physical Society
publication_identifier:
  issn:
  - 1948-5719
quality_controlled: '1'
status: public
title: Hydrothermal (K1-xNax)NbO3 Lead-free Piezoelectric Ceramics
type: journal_article
user_id: '55222'
volume: 57
year: '2010'
...
---
_id: '9759'
abstract:
- lang: eng
  text: Among various lead-free piezoelectric materials, (K,Na)NbO$_{3}$ is a very
    promising candidate. In this study, (K,Na)NbO$_{3}$ ceramics were sintered from
    mixed (K,Na)NbO$_{3}$ and NaNbO$_{3}$ powders prepared by hydrothermal reaction.
    These two powders were mixed with distilled water in a KNbO$_{3}$/NaNbO$_{3}$
    molar ratio of 1. After sintering the mixed powder, the solid solution of (Na,K)NbO$_{3}$
    ceramics was obtained. The electrical properties such as the electromechanical
    coupling factors k$_{p}$ and k$_{33}$, the mechanical quality factor, Q$_{m}$,
    and the piezoelectric constant d$_{33}$ of the sintered (K,Na)NbO$_{3}$ ceramics
    were 0.32, 0.48, 71 (radial mode), 118 ((33)mode), and 107 pC/N, respectively.
author:
- first_name: Takafumi
  full_name: Maeda, Takafumi
  last_name: Maeda
- first_name: Norihito
  full_name: Takiguchi, Norihito
  last_name: Takiguchi
- first_name: Takeshi
  full_name: Morita, Takeshi
  last_name: Morita
- first_name: Mutsuo
  full_name: Ishikawa, Mutsuo
  last_name: Ishikawa
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Maeda T, Takiguchi N, Morita T, Ishikawa M, Hemsel T. (K,Na)NbO3 lead-free
    piezoelectric ceramics synthesized from hydrothermal powders. <i>Materials Letters</i>.
    2010;64(2):125-128. doi:<a href="https://doi.org/10.1016/j.matlet.2009.10.012">10.1016/j.matlet.2009.10.012</a>
  apa: Maeda, T., Takiguchi, N., Morita, T., Ishikawa, M., &#38; Hemsel, T. (2010).
    (K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders.
    <i>Materials Letters</i>, <i>64</i>(2), 125–128. <a href="https://doi.org/10.1016/j.matlet.2009.10.012">https://doi.org/10.1016/j.matlet.2009.10.012</a>
  bibtex: '@article{Maeda_Takiguchi_Morita_Ishikawa_Hemsel_2010, title={(K,Na)NbO3
    lead-free piezoelectric ceramics synthesized from hydrothermal powders}, volume={64},
    DOI={<a href="https://doi.org/10.1016/j.matlet.2009.10.012">10.1016/j.matlet.2009.10.012</a>},
    number={2}, journal={Materials Letters}, author={Maeda, Takafumi and Takiguchi,
    Norihito and Morita, Takeshi and Ishikawa, Mutsuo and Hemsel, Tobias}, year={2010},
    pages={125–128} }'
  chicago: 'Maeda, Takafumi, Norihito Takiguchi, Takeshi Morita, Mutsuo Ishikawa,
    and Tobias Hemsel. “(K,Na)NbO3 Lead-Free Piezoelectric Ceramics Synthesized from
    Hydrothermal Powders.” <i>Materials Letters</i> 64, no. 2 (2010): 125–28. <a href="https://doi.org/10.1016/j.matlet.2009.10.012">https://doi.org/10.1016/j.matlet.2009.10.012</a>.'
  ieee: T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, and T. Hemsel, “(K,Na)NbO3
    lead-free piezoelectric ceramics synthesized from hydrothermal powders,” <i>Materials
    Letters</i>, vol. 64, no. 2, pp. 125–128, 2010.
  mla: Maeda, Takafumi, et al. “(K,Na)NbO3 Lead-Free Piezoelectric Ceramics Synthesized
    from Hydrothermal Powders.” <i>Materials Letters</i>, vol. 64, no. 2, 2010, pp.
    125–28, doi:<a href="https://doi.org/10.1016/j.matlet.2009.10.012">10.1016/j.matlet.2009.10.012</a>.
  short: T. Maeda, N. Takiguchi, T. Morita, M. Ishikawa, T. Hemsel, Materials Letters
    64 (2010) 125–128.
date_created: 2019-05-13T10:21:17Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1016/j.matlet.2009.10.012
intvolume: '        64'
issue: '2'
keyword:
- Lead-free piezoelectric material
- (K
- Na)NbO$_{3}$ ceramics
- Sintering solid solution
- Piezoelectric properties
language:
- iso: eng
page: 125-128
publication: Materials Letters
publication_identifier:
  issn:
  - 1948-5719
quality_controlled: '1'
status: public
title: (K,Na)NbO3 lead-free piezoelectric ceramics synthesized from hydrothermal powders
type: journal_article
user_id: '55222'
volume: 64
year: '2010'
...
---
_id: '9760'
abstract:
- lang: eng
  text: Self-optimizing systems are able to adapt their behavior autonomously according
    to their current self-determined objectives. Unforeseen influences could lead
    to dependability-critical behavior of the system. Methods are required which secure
    self-optimizing systems during operation. These methods to increase the dependability
    of the system should already be taken into consideration in the design process.
    This paper presents a guideline for the dependability-oriented design of self-optimizing
    systems, which integrates established classical methods like failure mode and
    effects analysis as well as methods based on self-optimization. On the one hand
    self-optimization is used to increase the dependability of the system by integrating
    objectives like safety, availability, and reliability to the objectives of the
    system. On the other hand methods are required to ensure the self-optimization
    itself. As basis for this guideline serves the principle solution of the system.
    The six phases of the guideline extend the design process and lead to an enhanced
    principle solution. Additionally, the guideline illustrates phases to implement
    and validate the self-optimizing system. The proposed guideline is applied to
    an innovative rail-bound vehicle, called RailCab, which is equipped with self-optimizing
    function modules.
author:
- first_name: Christoph
  full_name: Sondermann-Wölke, Christoph
  last_name: Sondermann-Wölke
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Jürgen
  full_name: Gausemeier, Jürgen
  last_name: Gausemeier
- first_name: Sebastian
  full_name: Pook, Sebastian
  last_name: Pook
citation:
  ama: 'Sondermann-Wölke C, Hemsel T, Sextro W, Gausemeier J, Pook S. Guideline for
    the dependability-oriented design of self-optimizing systems. In: <i>Industrial
    Informatics (INDIN), 2010 8th IEEE International Conference On</i>. ; 2010:739-744.
    doi:<a href="https://doi.org/10.1109/INDIN.2010.5549490">10.1109/INDIN.2010.5549490</a>'
  apa: Sondermann-Wölke, C., Hemsel, T., Sextro, W., Gausemeier, J., &#38; Pook, S.
    (2010). Guideline for the dependability-oriented design of self-optimizing systems.
    In <i>Industrial Informatics (INDIN), 2010 8th IEEE International Conference on</i>
    (pp. 739–744). <a href="https://doi.org/10.1109/INDIN.2010.5549490">https://doi.org/10.1109/INDIN.2010.5549490</a>
  bibtex: '@inproceedings{Sondermann-Wölke_Hemsel_Sextro_Gausemeier_Pook_2010, title={Guideline
    for the dependability-oriented design of self-optimizing systems}, DOI={<a href="https://doi.org/10.1109/INDIN.2010.5549490">10.1109/INDIN.2010.5549490</a>},
    booktitle={Industrial Informatics (INDIN), 2010 8th IEEE International Conference
    on}, author={Sondermann-Wölke, Christoph and Hemsel, Tobias and Sextro, Walter
    and Gausemeier, Jürgen and Pook, Sebastian}, year={2010}, pages={739–744} }'
  chicago: Sondermann-Wölke, Christoph, Tobias Hemsel, Walter Sextro, Jürgen Gausemeier,
    and Sebastian Pook. “Guideline for the Dependability-Oriented Design of Self-Optimizing
    Systems.” In <i>Industrial Informatics (INDIN), 2010 8th IEEE International Conference
    On</i>, 739–44, 2010. <a href="https://doi.org/10.1109/INDIN.2010.5549490">https://doi.org/10.1109/INDIN.2010.5549490</a>.
  ieee: C. Sondermann-Wölke, T. Hemsel, W. Sextro, J. Gausemeier, and S. Pook, “Guideline
    for the dependability-oriented design of self-optimizing systems,” in <i>Industrial
    Informatics (INDIN), 2010 8th IEEE International Conference on</i>, 2010, pp.
    739–744.
  mla: Sondermann-Wölke, Christoph, et al. “Guideline for the Dependability-Oriented
    Design of Self-Optimizing Systems.” <i>Industrial Informatics (INDIN), 2010 8th
    IEEE International Conference On</i>, 2010, pp. 739–44, doi:<a href="https://doi.org/10.1109/INDIN.2010.5549490">10.1109/INDIN.2010.5549490</a>.
  short: 'C. Sondermann-Wölke, T. Hemsel, W. Sextro, J. Gausemeier, S. Pook, in: Industrial
    Informatics (INDIN), 2010 8th IEEE International Conference On, 2010, pp. 739–744.'
date_created: 2019-05-13T10:25:26Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/INDIN.2010.5549490
keyword:
- RailCab
- dependability-critical behavior
- dependability-oriented design
- failure mode
- rail-bound vehicle
- secure self-optimizing systems
- self-optimizing function modules
- optimisation
- railways
- self-adjusting systems
language:
- iso: eng
page: 739 -744
publication: Industrial Informatics (INDIN), 2010 8th IEEE International Conference
  on
quality_controlled: '1'
status: public
title: Guideline for the dependability-oriented design of self-optimizing systems
type: conference
user_id: '55222'
year: '2010'
...
---
_id: '9761'
abstract:
- lang: eng
  text: New mechatronic systems, called self-optimizing systems, are able to adapt
    their behavior according to environmental, user and system specific influences.
    Self-optimizing systems are complex and due to their non-deterministic behavior
    comprise hidden risks, which cannot be foreseen in the design phase of the system.
    Therefore, modifications of the ISO 17359 condition monitoring policy for being
    able to cope with this new kind of systems are presented. Besides avoiding critical
    situations evoked by self-optimization, the proposed concept uses self-optimization
    to increase the dependability of the system. This concept is applied to the active
    guidance module of an innovative rail-bound vehicle. First test drives provide
    information for the enhancement of the implementation of realtime switching to
    appropriate control strategies. The different control strategies are investigated
    in detail. It is illustrated that influences on the system like different track
    sections or the desired velocity of the RailCab effect the system and can lead
    to a higher amount of flange contacts, which indicate higher wear and thus a reduction
    of the availability of the system. Therefore, these influences should be minded
    within the condition monitoring policy. Consequently, this article presents the
    condition monitoring policy for self-optimizing function modules and its application
    to the active railway guidance module.
author:
- first_name: Christoph
  full_name: Sondermann-Wölke, Christoph
  last_name: Sondermann-Wölke
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: Sondermann-Wölke C, Sextro W. Integration of Condition Monitoring in Self-optimizing
    Function Modules Applied to the Active Railway Guidance Module. <i>International
    Journal On Advances in Intelligent Systems</i>. 2010;3(1-3):65-74.
  apa: Sondermann-Wölke, C., &#38; Sextro, W. (2010). Integration of Condition Monitoring
    in Self-optimizing Function Modules Applied to the Active Railway Guidance Module.
    <i>International Journal On Advances in Intelligent Systems</i>, <i>3</i>(1–3),
    65–74.
  bibtex: '@article{Sondermann-Wölke_Sextro_2010, title={Integration of Condition
    Monitoring in Self-optimizing Function Modules Applied to the Active Railway Guidance
    Module}, volume={3}, number={1–3}, journal={International Journal On Advances
    in Intelligent Systems}, author={Sondermann-Wölke, Christoph and Sextro, Walter},
    year={2010}, pages={65–74} }'
  chicago: 'Sondermann-Wölke, Christoph, and Walter Sextro. “Integration of Condition
    Monitoring in Self-Optimizing Function Modules Applied to the Active Railway Guidance
    Module.” <i>International Journal On Advances in Intelligent Systems</i> 3, no.
    1–3 (2010): 65–74.'
  ieee: C. Sondermann-Wölke and W. Sextro, “Integration of Condition Monitoring in
    Self-optimizing Function Modules Applied to the Active Railway Guidance Module,”
    <i>International Journal On Advances in Intelligent Systems</i>, vol. 3, no. 1–3,
    pp. 65–74, 2010.
  mla: Sondermann-Wölke, Christoph, and Walter Sextro. “Integration of Condition Monitoring
    in Self-Optimizing Function Modules Applied to the Active Railway Guidance Module.”
    <i>International Journal On Advances in Intelligent Systems</i>, vol. 3, no. 1–3,
    2010, pp. 65–74.
  short: C. Sondermann-Wölke, W. Sextro, International Journal On Advances in Intelligent
    Systems 3 (2010) 65–74.
date_created: 2019-05-13T10:27:02Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
intvolume: '         3'
issue: 1 - 3
keyword:
- dependability
- condition monitoring
- selfoptimization
- active railway guidance module
language:
- iso: eng
page: 65 - 74
publication: International Journal On Advances in Intelligent Systems
quality_controlled: '1'
status: public
title: Integration of Condition Monitoring in Self-optimizing Function Modules Applied
  to the Active Railway Guidance Module
type: journal_article
user_id: '55222'
volume: 3
year: '2010'
...
---
_id: '9762'
abstract:
- lang: eng
  text: Die erweiterten Möglichkeiten der Informationsverarbeitung mechatronischer
    Systeme erlauben es, mechatronische Systeme selbstoptimierend zu gestalten. Dabei
    bezieht sich die Selbstoptimierung auf die Fähigkeit des Systems, sich an die
    aktuelle Umfeldsituation anzupassen; wobei das System im Allgemeinen mehrere relevante
    Ziele verfolgt. Wurde eine Umfeldveränderung bemerkt, so müssen diese Ziele an
    die neue Situation angepasst und das resultierende Verhalten ausgewählt werden.
    In diesem Beitrag wird das selbstoptimierende Spurführungsmodul näher untersucht.
    Das Spurführungsmodul ist Bestandteil eines innovativen schienengebundenen Verkehrssystems,
    genannt RailCab, und dient zur Lenkung des einzelnen Fahrzeugs. Ziele des Spurführungsmoduls
    bestehen darin, die Verlässlichkeit des Spurführungsmoduls zu erhöhen sowie möglichst
    wenig Energie zu verbrauchen. Um kritische Systemzustände zu erkennen bzw. frühzeitig
    zu verhindern wird eine Vorgehensweise zur Einrichtung einer Zustandsüberwachung
    für selbstoptimierende Systeme beschrieben. Diese wird auf dem realen Versuchsträger
    im Maßstab 1:2,5 implementiert. Die Auswertung von Versuchsfahrten zeigt, dass
    gerade beim Auftreten eines Fehlers das Umschalten vom Ziel ''Energieverbrauch
    minimieren`` auf das Ziel ''Verlässlichkeit maximieren`` sinnvoll ist.
author:
- first_name: Christoph
  full_name: Sondermann-Wölke, Christoph
  last_name: Sondermann-Wölke
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Jens
  full_name: Geisler, Jens
  last_name: Geisler
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  last_name: Trächtler
citation:
  ama: 'Sondermann-Wölke C, Sextro W, Geisler J, Trächtler A. Experimentelle Untersuchung
    der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls. In: Gausemeier
    J, Rammig FJ, Trächtler A, eds. <i>Entwurf Mechatronischer Systeme</i>. Vol 272.
    HNI-Verlagsschriftenreihe. Paderborn; 2010:411-420.'
  apa: Sondermann-Wölke, C., Sextro, W., Geisler, J., &#38; Trächtler, A. (2010).
    Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls.
    In J. Gausemeier, F. J. Rammig, &#38; A. Trächtler (Eds.), <i>Entwurf mechatronischer
    Systeme</i> (Vol. 272, pp. 411–420). Paderborn.
  bibtex: '@inproceedings{Sondermann-Wölke_Sextro_Geisler_Trächtler_2010, place={Paderborn},
    series={HNI-Verlagsschriftenreihe}, title={Experimentelle Untersuchung der Selbstoptimierung
    innerhalb des RailCab-Spurführungsmoduls}, volume={272}, booktitle={Entwurf mechatronischer
    Systeme}, author={Sondermann-Wölke, Christoph and Sextro, Walter and Geisler,
    Jens and Trächtler, Ansgar}, editor={Gausemeier, Jürgen and Rammig, Frans Josef
    and Trächtler, AnsgarEditors}, year={2010}, pages={411–420}, collection={HNI-Verlagsschriftenreihe}
    }'
  chicago: Sondermann-Wölke, Christoph, Walter Sextro, Jens Geisler, and Ansgar Trächtler.
    “Experimentelle Untersuchung Der Selbstoptimierung Innerhalb Des RailCab-Spurführungsmoduls.”
    In <i>Entwurf Mechatronischer Systeme</i>, edited by Jürgen Gausemeier, Frans
    Josef Rammig, and Ansgar Trächtler, 272:411–20. HNI-Verlagsschriftenreihe. Paderborn,
    2010.
  ieee: C. Sondermann-Wölke, W. Sextro, J. Geisler, and A. Trächtler, “Experimentelle
    Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls,”
    in <i>Entwurf mechatronischer Systeme</i>, 2010, vol. 272, pp. 411–420.
  mla: Sondermann-Wölke, Christoph, et al. “Experimentelle Untersuchung Der Selbstoptimierung
    Innerhalb Des RailCab-Spurführungsmoduls.” <i>Entwurf Mechatronischer Systeme</i>,
    edited by Jürgen Gausemeier et al., vol. 272, 2010, pp. 411–20.
  short: 'C. Sondermann-Wölke, W. Sextro, J. Geisler, A. Trächtler, in: J. Gausemeier,
    F.J. Rammig, A. Trächtler (Eds.), Entwurf Mechatronischer Systeme, Paderborn,
    2010, pp. 411–420.'
date_created: 2019-05-13T10:28:04Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
editor:
- first_name: Jürgen
  full_name: Gausemeier, Jürgen
  last_name: Gausemeier
- first_name: Frans Josef
  full_name: Rammig, Frans Josef
  last_name: Rammig
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  last_name: Trächtler
intvolume: '       272'
keyword:
- Selbstoptimierung
- Spurführungsmodul
language:
- iso: eng
page: 411 - 420
place: Paderborn
publication: Entwurf mechatronischer Systeme
quality_controlled: '1'
series_title: HNI-Verlagsschriftenreihe
status: public
title: Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls
type: conference
user_id: '55222'
volume: 272
year: '2010'
...
---
_id: '9763'
abstract:
- lang: eng
  text: Recent advances in information processing enable new kinds of technical systems,
    called self-optimizing systems. These systems are able to adapt their objectives
    and their behavior according to the current situation and influences autonomously.
    This behavior adaptation is non-deterministic and hence self-optimization is a
    risk to the system, e.g. if the result of the self-optimization process does not
    match the suddenly changed situation. In contrary, self-optimization could be
    used to increase the dependability by pursuing objectives like reliability and
    availability. In our preceding publications we introduced the so called multi-level
    dependability concept to cope with this new kind of systems (cf. [6]). This concept
    comprises the monitoring of the system behavior, the classification of the current
    situation, and the selection of the appropriate measure, if reliability limits
    are exceeded. In this paper we present for the first time experimental results.
    The dependability concept is implemented in the self-optimizing active guidance
    system of a railway vehicle. The test drives illustrate clearly that the proposed
    concept is able to cope with, e.g., sensor failures, and is able to increase the
    reliability and availability of the active guidance module.
author:
- first_name: Christoph
  full_name: Sondermann-Wölke, Christoph
  last_name: Sondermann-Wölke
- first_name: Jens
  full_name: Geisler, Jens
  last_name: Geisler
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Sondermann-Wölke C, Geisler J, Sextro W. Increasing the reliability of a self-optimizing
    railway guidance system. In: <i>Reliability and Maintainability Symposium (RAMS),
    2010 Proceedings - Annual</i>. ; 2010:1-6. doi:<a href="https://doi.org/10.1109/RAMS.2010.5448080">10.1109/RAMS.2010.5448080</a>'
  apa: Sondermann-Wölke, C., Geisler, J., &#38; Sextro, W. (2010). Increasing the
    reliability of a self-optimizing railway guidance system. In <i>Reliability and
    Maintainability Symposium (RAMS), 2010 Proceedings - Annual</i> (pp. 1–6). <a
    href="https://doi.org/10.1109/RAMS.2010.5448080">https://doi.org/10.1109/RAMS.2010.5448080</a>
  bibtex: '@inproceedings{Sondermann-Wölke_Geisler_Sextro_2010, title={Increasing
    the reliability of a self-optimizing railway guidance system}, DOI={<a href="https://doi.org/10.1109/RAMS.2010.5448080">10.1109/RAMS.2010.5448080</a>},
    booktitle={Reliability and Maintainability Symposium (RAMS), 2010 Proceedings
    - Annual}, author={Sondermann-Wölke, Christoph and Geisler, Jens and Sextro, Walter},
    year={2010}, pages={1–6} }'
  chicago: Sondermann-Wölke, Christoph, Jens Geisler, and Walter Sextro. “Increasing
    the Reliability of a Self-Optimizing Railway Guidance System.” In <i>Reliability
    and Maintainability Symposium (RAMS), 2010 Proceedings - Annual</i>, 1–6, 2010.
    <a href="https://doi.org/10.1109/RAMS.2010.5448080">https://doi.org/10.1109/RAMS.2010.5448080</a>.
  ieee: C. Sondermann-Wölke, J. Geisler, and W. Sextro, “Increasing the reliability
    of a self-optimizing railway guidance system,” in <i>Reliability and Maintainability
    Symposium (RAMS), 2010 Proceedings - Annual</i>, 2010, pp. 1–6.
  mla: Sondermann-Wölke, Christoph, et al. “Increasing the Reliability of a Self-Optimizing
    Railway Guidance System.” <i>Reliability and Maintainability Symposium (RAMS),
    2010 Proceedings - Annual</i>, 2010, pp. 1–6, doi:<a href="https://doi.org/10.1109/RAMS.2010.5448080">10.1109/RAMS.2010.5448080</a>.
  short: 'C. Sondermann-Wölke, J. Geisler, W. Sextro, in: Reliability and Maintainability
    Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6.'
date_created: 2019-05-13T10:35:39Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/RAMS.2010.5448080
keyword:
- availability
- dependability concept
- multilevel dependability concept
- railway vehicle
- reliability
- self optimizing active guidance system
- self optimizing railway guidance system
- situation classification
- system behavior monitoring
- optimal control
- railways
- reliability theory
- self-adjusting systems
language:
- iso: eng
page: 1 -6
publication: Reliability and Maintainability Symposium (RAMS), 2010 Proceedings -
  Annual
publication_identifier:
  issn:
  - 0149-144X
quality_controlled: '1'
status: public
title: Increasing the reliability of a self-optimizing railway guidance system
type: conference
user_id: '55222'
year: '2010'
...
---
_id: '9764'
author:
- first_name: Christoph
  full_name: Tomberger, Christoph
  last_name: Tomberger
- first_name: Peter
  full_name: Dietmaier, Peter
  last_name: Dietmaier
- first_name: Rosenberger
  full_name: Martin, Rosenberger
  last_name: Martin
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Klaus
  full_name: Six, Klaus
  last_name: Six
citation:
  ama: Tomberger C, Dietmaier P, Martin R, Sextro W, Six K. Einfluss von Oberflächenrauheit,
    fluiden Zwischenschichten und Kontakttemperaturen auf den Kraftschluss zwischen
    Rad und Schiene. <i>ZEVrail</i>. 2010;134:127-135.
  apa: Tomberger, C., Dietmaier, P., Martin, R., Sextro, W., &#38; Six, K. (2010).
    Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen
    auf den Kraftschluss zwischen Rad und Schiene. <i>ZEVrail</i>, <i>134</i>, 127–135.
  bibtex: '@article{Tomberger_Dietmaier_Martin_Sextro_Six_2010, title={Einfluss von
    Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den
    Kraftschluss zwischen Rad und Schiene}, volume={134}, journal={ZEVrail}, author={Tomberger,
    Christoph and Dietmaier, Peter and Martin, Rosenberger and Sextro, Walter and
    Six, Klaus}, year={2010}, pages={127–135} }'
  chicago: 'Tomberger, Christoph, Peter Dietmaier, Rosenberger Martin, Walter Sextro,
    and Klaus Six. “Einfluss von Oberflächenrauheit, Fluiden Zwischenschichten Und
    Kontakttemperaturen Auf Den Kraftschluss Zwischen Rad Und Schiene.” <i>ZEVrail</i>
    134 (2010): 127–35.'
  ieee: C. Tomberger, P. Dietmaier, R. Martin, W. Sextro, and K. Six, “Einfluss von
    Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den
    Kraftschluss zwischen Rad und Schiene,” <i>ZEVrail</i>, vol. 134, pp. 127–135,
    2010.
  mla: Tomberger, Christoph, et al. “Einfluss von Oberflächenrauheit, Fluiden Zwischenschichten
    Und Kontakttemperaturen Auf Den Kraftschluss Zwischen Rad Und Schiene.” <i>ZEVrail</i>,
    vol. 134, 2010, pp. 127–35.
  short: C. Tomberger, P. Dietmaier, R. Martin, W. Sextro, K. Six, ZEVrail 134 (2010)
    127–135.
date_created: 2019-05-13T10:37:07Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
intvolume: '       134'
language:
- iso: eng
page: 127-135
publication: ZEVrail
publication_identifier:
  issn:
  - 0043-1648
status: public
title: Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen
  auf den Kraftschluss zwischen Rad und Schiene
type: journal_article
user_id: '55222'
volume: 134
year: '2010'
...
---
_id: '4210'
abstract:
- lang: eng
  text: "In this paper we demonstrate a strain-driven GaN interlayer method to reduce
    dislocation densities in GaN grown on (111) oriented silicon by metal organic
    vapour phase epitaxy (MOVPE). In order to achieve crack-free GaN layers of\r\nreasonable
    thicknesses and dislocation densities it is crucial to integrate both dislocation
    reduction and strain management layers. In contrast to techniques like FACELO
    or nanoELO we show the in situ formation of GaN islands directly on the AlN nucleation
    layer without the need to deposit a SiO2 or SiNx mask. A graded AlGaN layer for
    strain management can be grown on top of this dislocation reducing 3D GaN inter-layer
    in order to achieve crack-free GaN layers grown on top of the AlGaN strain management
    layer. Furthermore, an additional SiNx layer for subsequent dislocation reduction
    can also be incorporated into the structure and is shown to efficiently reduce
    the dislocation density down to the low 10^9 cm^2. The structural properties of
    the 3D GaN island buffer layer and overgrown\r\nsamples are studied by means of
    SEM, cross-sectional, and plan view TEM. Cathodoluminiscence in an SEM is employed
    to correlate the dislocation microstructure as observed by plan view TEM with
    luminescent properties."
article_type: original
author:
- first_name: Maik
  full_name: Häberlen, Maik
  last_name: Häberlen
- first_name: Dandan
  full_name: Zhu, Dandan
  last_name: Zhu
- first_name: Clifford
  full_name: McAleese, Clifford
  last_name: McAleese
- first_name: Tongtong
  full_name: Zhu, Tongtong
  last_name: Zhu
- first_name: Menno J.
  full_name: Kappers, Menno J.
  last_name: Kappers
- first_name: Colin J.
  full_name: Humphreys, Colin J.
  last_name: Humphreys
citation:
  ama: Häberlen M, Zhu D, McAleese C, Zhu T, Kappers MJ, Humphreys CJ. Dislocation
    reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer. <i>physica
    status solidi (b)</i>. 2010;247(7):1753-1756. doi:<a href="https://doi.org/10.1002/pssb.200983537">10.1002/pssb.200983537</a>
  apa: Häberlen, M., Zhu, D., McAleese, C., Zhu, T., Kappers, M. J., &#38; Humphreys,
    C. J. (2010). Dislocation reduction in GaN grown on Si(111) using a strain-driven
    3D GaN interlayer. <i>Physica Status Solidi (B)</i>, <i>247</i>(7), 1753–1756.
    <a href="https://doi.org/10.1002/pssb.200983537">https://doi.org/10.1002/pssb.200983537</a>
  bibtex: '@article{Häberlen_Zhu_McAleese_Zhu_Kappers_Humphreys_2010, title={Dislocation
    reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer}, volume={247},
    DOI={<a href="https://doi.org/10.1002/pssb.200983537">10.1002/pssb.200983537</a>},
    number={7}, journal={physica status solidi (b)}, publisher={Wiley}, author={Häberlen,
    Maik and Zhu, Dandan and McAleese, Clifford and Zhu, Tongtong and Kappers, Menno
    J. and Humphreys, Colin J.}, year={2010}, pages={1753–1756} }'
  chicago: 'Häberlen, Maik, Dandan Zhu, Clifford McAleese, Tongtong Zhu, Menno J.
    Kappers, and Colin J. Humphreys. “Dislocation Reduction in GaN Grown on Si(111)
    Using a Strain-Driven 3D GaN Interlayer.” <i>Physica Status Solidi (B)</i> 247,
    no. 7 (2010): 1753–56. <a href="https://doi.org/10.1002/pssb.200983537">https://doi.org/10.1002/pssb.200983537</a>.'
  ieee: M. Häberlen, D. Zhu, C. McAleese, T. Zhu, M. J. Kappers, and C. J. Humphreys,
    “Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN interlayer,”
    <i>physica status solidi (b)</i>, vol. 247, no. 7, pp. 1753–1756, 2010.
  mla: Häberlen, Maik, et al. “Dislocation Reduction in GaN Grown on Si(111) Using
    a Strain-Driven 3D GaN Interlayer.” <i>Physica Status Solidi (B)</i>, vol. 247,
    no. 7, Wiley, 2010, pp. 1753–56, doi:<a href="https://doi.org/10.1002/pssb.200983537">10.1002/pssb.200983537</a>.
  short: M. Häberlen, D. Zhu, C. McAleese, T. Zhu, M.J. Kappers, C.J. Humphreys, Physica
    Status Solidi (B) 247 (2010) 1753–1756.
date_created: 2018-08-28T12:42:58Z
date_updated: 2022-01-06T07:00:36Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1002/pssb.200983537
file:
- access_level: closed
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-28T12:43:31Z
  date_updated: 2018-08-28T12:43:31Z
  file_id: '4211'
  file_name: Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D
    GaN interlayer.pdf
  file_size: 911931
  relation: main_file
  success: 1
file_date_updated: 2018-08-28T12:43:31Z
has_accepted_license: '1'
intvolume: '       247'
issue: '7'
language:
- iso: eng
page: 1753-1756
publication: physica status solidi (b)
publication_identifier:
  issn:
  - 0370-1972
  - 1521-3951
publication_status: published
publisher: Wiley
status: public
title: Dislocation reduction in GaN grown on Si(111) using a strain-driven 3D GaN
  interlayer
type: journal_article
user_id: '55706'
volume: 247
year: '2010'
...
---
_id: '13170'
author:
- first_name: Dieter
  full_name: Gorenflo, Dieter
  last_name: Gorenflo
- first_name: Elmar
  full_name: Baumhögger, Elmar
  id: '15164'
  last_name: Baumhögger
- first_name: Thorsten
  full_name: Windmann, Thorsten
  last_name: Windmann
- first_name: Gerhard
  full_name: Herres, Gerhard
  last_name: Herres
citation:
  ama: 'Gorenflo D, Baumhögger E, Windmann T, Herres G. Nucleate pool boiling, film
    boiling and single-phase free convection at pressures up to the critical state.
    Part II: Circumferential variation of the wall superheat for a horizontal 25mm
    copper cylinder. <i>International Journal of Refrigeration</i>. 2010:1251-1263.
    doi:<a href="https://doi.org/10.1016/j.ijrefrig.2010.08.004">10.1016/j.ijrefrig.2010.08.004</a>'
  apa: 'Gorenflo, D., Baumhögger, E., Windmann, T., &#38; Herres, G. (2010). Nucleate
    pool boiling, film boiling and single-phase free convection at pressures up to
    the critical state. Part II: Circumferential variation of the wall superheat for
    a horizontal 25mm copper cylinder. <i>International Journal of Refrigeration</i>,
    1251–1263. <a href="https://doi.org/10.1016/j.ijrefrig.2010.08.004">https://doi.org/10.1016/j.ijrefrig.2010.08.004</a>'
  bibtex: '@article{Gorenflo_Baumhögger_Windmann_Herres_2010, title={Nucleate pool
    boiling, film boiling and single-phase free convection at pressures up to the
    critical state. Part II: Circumferential variation of the wall superheat for a
    horizontal 25mm copper cylinder}, DOI={<a href="https://doi.org/10.1016/j.ijrefrig.2010.08.004">10.1016/j.ijrefrig.2010.08.004</a>},
    journal={International Journal of Refrigeration}, author={Gorenflo, Dieter and
    Baumhögger, Elmar and Windmann, Thorsten and Herres, Gerhard}, year={2010}, pages={1251–1263}
    }'
  chicago: 'Gorenflo, Dieter, Elmar Baumhögger, Thorsten Windmann, and Gerhard Herres.
    “Nucleate Pool Boiling, Film Boiling and Single-Phase Free Convection at Pressures
    up to the Critical State. Part II: Circumferential Variation of the Wall Superheat
    for a Horizontal 25mm Copper Cylinder.” <i>International Journal of Refrigeration</i>,
    2010, 1251–63. <a href="https://doi.org/10.1016/j.ijrefrig.2010.08.004">https://doi.org/10.1016/j.ijrefrig.2010.08.004</a>.'
  ieee: 'D. Gorenflo, E. Baumhögger, T. Windmann, and G. Herres, “Nucleate pool boiling,
    film boiling and single-phase free convection at pressures up to the critical
    state. Part II: Circumferential variation of the wall superheat for a horizontal
    25mm copper cylinder,” <i>International Journal of Refrigeration</i>, pp. 1251–1263,
    2010.'
  mla: 'Gorenflo, Dieter, et al. “Nucleate Pool Boiling, Film Boiling and Single-Phase
    Free Convection at Pressures up to the Critical State. Part II: Circumferential
    Variation of the Wall Superheat for a Horizontal 25mm Copper Cylinder.” <i>International
    Journal of Refrigeration</i>, 2010, pp. 1251–63, doi:<a href="https://doi.org/10.1016/j.ijrefrig.2010.08.004">10.1016/j.ijrefrig.2010.08.004</a>.'
  short: D. Gorenflo, E. Baumhögger, T. Windmann, G. Herres, International Journal
    of Refrigeration (2010) 1251–1263.
date_created: 2019-09-09T15:23:44Z
date_updated: 2022-01-06T06:51:29Z
department:
- _id: '155'
doi: 10.1016/j.ijrefrig.2010.08.004
language:
- iso: eng
page: 1251-1263
publication: International Journal of Refrigeration
publication_identifier:
  issn:
  - 0140-7007
publication_status: published
status: public
title: 'Nucleate pool boiling, film boiling and single-phase free convection at pressures
  up to the critical state. Part II: Circumferential variation of the wall superheat
  for a horizontal 25mm copper cylinder'
type: journal_article
user_id: '15164'
year: '2010'
...
---
_id: '13171'
author:
- first_name: Dieter
  full_name: Gorenflo, Dieter
  last_name: Gorenflo
- first_name: Elmar
  full_name: Baumhögger, Elmar
  id: '15164'
  last_name: Baumhögger
- first_name: Thorsten
  full_name: Windmann, Thorsten
  last_name: Windmann
- first_name: Gerhard
  full_name: Herres, Gerhard
  last_name: Herres
citation:
  ama: 'Gorenflo D, Baumhögger E, Windmann T, Herres G. Nucleate pool boiling, film
    boiling and single-phase free convection at pressures up to the critical state.
    Part I: Integral heat transfer for horizontal copper cylinders. <i>International
    Journal of Refrigeration</i>. 2010:1229-1250. doi:<a href="https://doi.org/10.1016/j.ijrefrig.2010.07.015">10.1016/j.ijrefrig.2010.07.015</a>'
  apa: 'Gorenflo, D., Baumhögger, E., Windmann, T., &#38; Herres, G. (2010). Nucleate
    pool boiling, film boiling and single-phase free convection at pressures up to
    the critical state. Part I: Integral heat transfer for horizontal copper cylinders.
    <i>International Journal of Refrigeration</i>, 1229–1250. <a href="https://doi.org/10.1016/j.ijrefrig.2010.07.015">https://doi.org/10.1016/j.ijrefrig.2010.07.015</a>'
  bibtex: '@article{Gorenflo_Baumhögger_Windmann_Herres_2010, title={Nucleate pool
    boiling, film boiling and single-phase free convection at pressures up to the
    critical state. Part I: Integral heat transfer for horizontal copper cylinders},
    DOI={<a href="https://doi.org/10.1016/j.ijrefrig.2010.07.015">10.1016/j.ijrefrig.2010.07.015</a>},
    journal={International Journal of Refrigeration}, author={Gorenflo, Dieter and
    Baumhögger, Elmar and Windmann, Thorsten and Herres, Gerhard}, year={2010}, pages={1229–1250}
    }'
  chicago: 'Gorenflo, Dieter, Elmar Baumhögger, Thorsten Windmann, and Gerhard Herres.
    “Nucleate Pool Boiling, Film Boiling and Single-Phase Free Convection at Pressures
    up to the Critical State. Part I: Integral Heat Transfer for Horizontal Copper
    Cylinders.” <i>International Journal of Refrigeration</i>, 2010, 1229–50. <a href="https://doi.org/10.1016/j.ijrefrig.2010.07.015">https://doi.org/10.1016/j.ijrefrig.2010.07.015</a>.'
  ieee: 'D. Gorenflo, E. Baumhögger, T. Windmann, and G. Herres, “Nucleate pool boiling,
    film boiling and single-phase free convection at pressures up to the critical
    state. Part I: Integral heat transfer for horizontal copper cylinders,” <i>International
    Journal of Refrigeration</i>, pp. 1229–1250, 2010.'
  mla: 'Gorenflo, Dieter, et al. “Nucleate Pool Boiling, Film Boiling and Single-Phase
    Free Convection at Pressures up to the Critical State. Part I: Integral Heat Transfer
    for Horizontal Copper Cylinders.” <i>International Journal of Refrigeration</i>,
    2010, pp. 1229–50, doi:<a href="https://doi.org/10.1016/j.ijrefrig.2010.07.015">10.1016/j.ijrefrig.2010.07.015</a>.'
  short: D. Gorenflo, E. Baumhögger, T. Windmann, G. Herres, International Journal
    of Refrigeration (2010) 1229–1250.
date_created: 2019-09-09T15:24:30Z
date_updated: 2022-01-06T06:51:29Z
department:
- _id: '155'
doi: 10.1016/j.ijrefrig.2010.07.015
language:
- iso: eng
page: 1229-1250
publication: International Journal of Refrigeration
publication_identifier:
  issn:
  - 0140-7007
publication_status: published
status: public
title: 'Nucleate pool boiling, film boiling and single-phase free convection at pressures
  up to the critical state. Part I: Integral heat transfer for horizontal copper cylinders'
type: journal_article
user_id: '15164'
year: '2010'
...
---
_id: '22050'
abstract:
- lang: eng
  text: Generative production techniques have the advantage of manufacturing parts
    via an additive process without needing a forming tool. One of these additive
    manufacturing technologies is “Fused Deposition Modeling” (FDM). From a 3D-CAD
    data set, components and assemblies are manufactured out of thermoplastic material
    in only a few working steps. Native software automatically slices the data, calculates
    the support structures, and creates toolpaths. The parts then are built up layer
    by layer by means of an additive process. An extrusion head deposits the molten
    thermoplastic filament to create each layer. This technology began as a process
    for creating prototype parts; recently it has found new utility in the production
    of manufacturing tools and as a manufacturing process for end-use parts. In order
    to be used as a part for serial production, the components must possess the required
    mechanical properties. To this end, not only is the chosen material relevant,
    but a correct process control is also necessary. An interesting material for the
    aircraft and automotive industry is the material PEI with the trade name Ultem*9085.
    This material should typically be used on FDM-machines for the manufacturing of
    end products. The aim of the research is to determine the present mechanical data
    based on the process control, as well as reproducibility from job to job. In this
    work the influence of the orientation and the structure of the manufactured parts
    based on the mechanical data are analyzed. Sample parts are generated with the
    given parameters of the native software based upon the CAD data. First, specimens
    were analyzed concerning their geometry and configuration. The dimensions and
    weight were measured. The mechanical tests conducted were the tensile and compression
    tests.
author:
- first_name: A.
  full_name: Bagsik, A.
  last_name: Bagsik
- first_name: Volker
  full_name: Schöppner, Volker
  id: '20530'
  last_name: Schöppner
- first_name: E.
  full_name: Klemp, E.
  last_name: Klemp
citation:
  ama: 'Bagsik A, Schöppner V, Klemp E. FDM Part Quality Manufactured with ULTEM 9085.
    In: <i>Proceedings of International Conference Polymeric Materials</i>. ; 2010.
    doi:<a href="https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>'
  apa: Bagsik, A., Schöppner, V., &#38; Klemp, E. (2010). FDM Part Quality Manufactured
    with ULTEM 9085. <i>Proceedings of International Conference Polymeric Materials</i>.
    <a href="https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>
  bibtex: '@inproceedings{Bagsik_Schöppner_Klemp_2010, title={FDM Part Quality Manufactured
    with ULTEM 9085}, DOI={<a href="https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>},
    booktitle={Proceedings of International Conference Polymeric Materials}, author={Bagsik,
    A. and Schöppner, Volker and Klemp, E.}, year={2010} }'
  chicago: Bagsik, A., Volker Schöppner, and E. Klemp. “FDM Part Quality Manufactured
    with ULTEM 9085.” In <i>Proceedings of International Conference Polymeric Materials</i>,
    2010. <a href="https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>.
  ieee: 'A. Bagsik, V. Schöppner, and E. Klemp, “FDM Part Quality Manufactured with
    ULTEM 9085,” 2010, doi: <a href="https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>.'
  mla: Bagsik, A., et al. “FDM Part Quality Manufactured with ULTEM 9085.” <i>Proceedings
    of International Conference Polymeric Materials</i>, 2010, doi:<a href="https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html">https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html</a>.
  short: 'A. Bagsik, V. Schöppner, E. Klemp, in: Proceedings of International Conference
    Polymeric Materials, 2010.'
date_created: 2021-05-07T13:23:34Z
date_updated: 2022-04-25T08:04:26Z
department:
- _id: '219'
- _id: '624'
- _id: '367'
- _id: '9'
doi: https://docplayer.net/255735-Fdm-part-quality-manufactured-with-ultem-9085.html
language:
- iso: eng
publication: Proceedings of International Conference Polymeric Materials
publication_identifier:
  isbn:
  - 978-3-868-29282-4
quality_controlled: '1'
status: public
title: FDM Part Quality Manufactured with ULTEM 9085
type: conference
user_id: '70729'
year: '2010'
...