---
_id: '9538'
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
citation:
  ama: 'Hemsel T, Mracek M. Control of Bundled Miniature Ultrasonic Linear Motors.
    In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:313-322.'
  apa: Hemsel, T., &#38; Mracek, M. (2006). Control of Bundled Miniature Ultrasonic
    Linear Motors. In <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i> (pp. 313–322). Paderborn, Germany.
  bibtex: '@inproceedings{Hemsel_Mracek_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Control of Bundled Miniature Ultrasonic Linear
    Motors}, number={Band 180}, booktitle={Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators}, author={Hemsel, Tobias
    and Mracek, Maik}, year={2006}, pages={313–322}, collection={HNI Verlagsschriftenreihe}
    }'
  chicago: Hemsel, Tobias, and Maik Mracek. “Control of Bundled Miniature Ultrasonic
    Linear Motors.” In <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, 313–22. HNI Verlagsschriftenreihe.
    Paderborn, Germany, 2006.
  ieee: T. Hemsel and M. Mracek, “Control of Bundled Miniature Ultrasonic Linear Motors,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, no. Band 180, pp. 313–322.
  mla: Hemsel, Tobias, and Maik Mracek. “Control of Bundled Miniature Ultrasonic Linear
    Motors.” <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, no. Band 180, 2006, pp. 313–22.
  short: 'T. Hemsel, M. Mracek, in: Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators, Paderborn, Germany, 2006, pp. 313–322.'
date_created: 2019-04-29T09:02:00Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 313-322
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Control of Bundled Miniature Ultrasonic Linear Motors
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9539'
abstract:
- lang: eng
  text: 'Classically, rotary motors with gears and spindle mechanisms are used to
    achieve translatory motion. In means of miniaturization and weight reduction piezoelectric
    linear motors are of interest. Several ultrasonic linear motors found in literature
    base on the use of two different vibration modes. Most often flexural and longitudinal
    modes are combined to achieve an elliptic micro-motion of surface points. This
    micro-motion is converted to direct linear (or translatory) motion of a driven
    slider. To gain high amplitudes of the micro-motion and thus having a powerful
    motor, the ultrasonic vibrator should be driven near the eigenfrequency of its
    modes. Additionally, low mechanical and electrical losses lead to increased efficiency
    and large amplitude magnification in resonance. This demands a geometrical design
    that fits the eigenfrequencies of the two different modes. A frequency-deviation
    of only a few percent leads to non-acceptable disturbance of the elliptical motion.
    Thus, the mechanical design of the vibrators has to be done very carefully. Within
    this contribution we discuss different motor designs based on the coupling of
    two the same longitudinal vibrations within one structure to generate an elliptic
    motion of surface points. Different concepts based on piezoelectric plates and
    Langevin transducers are compared. Benefits and drawbacks against the combination
    of longitudinal and bending modes will be discussed. Numerical results of the
    stator vibration as well as motor characteristics are validated by measurements
    on different prototypes. '
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Piotr
  full_name: Vasiljev, Piotr
  last_name: Vasiljev
citation:
  ama: Hemsel T, Mracek M, Twiefel J, Vasiljev P. Piezoelectric linear motor concepts
    based on coupling of longitudinal vibrations. <i>Ultrasonics</i>. 2006;44, Supplement(0):e591-e596.
    doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>
  apa: Hemsel, T., Mracek, M., Twiefel, J., &#38; Vasiljev, P. (2006). Piezoelectric
    linear motor concepts based on coupling of longitudinal vibrations. <i>Ultrasonics</i>,
    <i>44</i>, <i>Supplement</i>(0), e591–e596. <a href="https://doi.org/10.1016/j.ultras.2006.05.056">https://doi.org/10.1016/j.ultras.2006.05.056</a>
  bibtex: '@article{Hemsel_Mracek_Twiefel_Vasiljev_2006, title={Piezoelectric linear
    motor concepts based on coupling of longitudinal vibrations}, volume={44, Supplement},
    DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>},
    number={0}, journal={Ultrasonics}, author={Hemsel, Tobias and Mracek, Maik and
    Twiefel, Jens and Vasiljev, Piotr}, year={2006}, pages={e591–e596} }'
  chicago: 'Hemsel, Tobias, Maik Mracek, Jens Twiefel, and Piotr Vasiljev. “Piezoelectric
    Linear Motor Concepts Based on Coupling of Longitudinal Vibrations.” <i>Ultrasonics</i>
    44, Supplement, no. 0 (2006): e591–96. <a href="https://doi.org/10.1016/j.ultras.2006.05.056">https://doi.org/10.1016/j.ultras.2006.05.056</a>.'
  ieee: T. Hemsel, M. Mracek, J. Twiefel, and P. Vasiljev, “Piezoelectric linear motor
    concepts based on coupling of longitudinal vibrations,” <i>Ultrasonics</i>, vol.
    44, Supplement, no. 0, pp. e591–e596, 2006.
  mla: Hemsel, Tobias, et al. “Piezoelectric Linear Motor Concepts Based on Coupling
    of Longitudinal Vibrations.” <i>Ultrasonics</i>, vol. 44, Supplement, no. 0, 2006,
    pp. e591–96, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>.
  short: T. Hemsel, M. Mracek, J. Twiefel, P. Vasiljev, Ultrasonics 44, Supplement
    (2006) e591–e596.
date_created: 2019-04-29T09:03:50Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.056
issue: '0'
keyword:
- Piezoelectric linear motor
language:
- iso: eng
page: e591 - e596
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Piezoelectric linear motor concepts based on coupling of longitudinal vibrations
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9540'
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: S
  full_name: Priya, S
  last_name: Priya
citation:
  ama: 'Hemsel T, Priya S. Model Based Analysis of Piezoelectric Transformers. In:
    <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications
    in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany; 2006:223-228.'
  apa: Hemsel, T., &#38; Priya, S. (2006). Model Based Analysis of Piezoelectric Transformers.
    In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i> (pp. 223–228). Paderborn, Germany.
  bibtex: '@inproceedings{Hemsel_Priya_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Model Based Analysis of Piezoelectric Transformers},
    number={Band 180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators}, author={Hemsel, Tobias and Priya, S},
    year={2006}, pages={223–228}, collection={HNI Verlagsschriftenreihe} }'
  chicago: Hemsel, Tobias, and S Priya. “Model Based Analysis of Piezoelectric Transformers.”
    In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 223–28. HNI Verlagsschriftenreihe. Paderborn, Germany,
    2006.
  ieee: T. Hemsel and S. Priya, “Model Based Analysis of Piezoelectric Transformers,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, no. Band 180, pp. 223–228.
  mla: Hemsel, Tobias, and S. Priya. “Model Based Analysis of Piezoelectric Transformers.”
    <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications
    in Actuators</i>, no. Band 180, 2006, pp. 223–28.
  short: 'T. Hemsel, S. Priya, in: Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators, Paderborn, Germany, 2006, pp. 223–228.'
date_created: 2019-04-29T09:04:55Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 223-228
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
quality_controlled: '1'
series_title: HNI Verlagsschriftenreihe
status: public
title: Model Based Analysis of Piezoelectric Transformers
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9541'
abstract:
- lang: eng
  text: Piezoelectric transformers are increasingly getting popular in the electrical
    devices owing to several advantages such as small size, high efficiency, no electromagnetic
    noise and non-flammable. In addition to the conventional applications such as
    ballast for back light inverter in notebook computers, camera flash, and fuel
    ignition several new applications have emerged such as AC/DC converter, battery
    charger and automobile lighting. These new applications demand high power density
    and wide range of voltage gain. Currently, the transformer power density is limited
    to $40 W/cm{^3}$ obtained at low voltage gain. The purpose of this study was to
    investigate a transformer design that has the potential of providing higher power
    density and wider range of voltage gain. The new transformer design utilizes radial
    mode both at the input and output port and has the unidirectional polarization
    in the ceramics. This design was found to provide 30 W power with an efficiency
    of 98\% and 30 $\,^{\circ}$C temperature rise from the room temperature. An electro-mechanical
    equivalent circuit model was developed to describe the characteristics of the
    piezoelectric transformer. The model was found to successfully predict the characteristics
    of the transformer. Excellent matching was found between the computed and experimental
    results. The results of this study will allow to deterministically design unipoled
    piezoelectric transformers with specified performance. It is expected that in
    near future the unipoled transformer will gain significant importance in various
    electrical components.
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: S
  full_name: Priya, S
  last_name: Priya
citation:
  ama: Hemsel T, Priya S. Model based analysis of piezoelectric transformers. <i>Ultrasonics</i>.
    2006;44, Supplement(0):e741-e745. doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.086">10.1016/j.ultras.2006.05.086</a>
  apa: Hemsel, T., &#38; Priya, S. (2006). Model based analysis of piezoelectric transformers.
    <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>(0), e741–e745. <a href="https://doi.org/10.1016/j.ultras.2006.05.086">https://doi.org/10.1016/j.ultras.2006.05.086</a>
  bibtex: '@article{Hemsel_Priya_2006, title={Model based analysis of piezoelectric
    transformers}, volume={44, Supplement}, DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.086">10.1016/j.ultras.2006.05.086</a>},
    number={0}, journal={Ultrasonics}, author={Hemsel, Tobias and Priya, S}, year={2006},
    pages={e741–e745} }'
  chicago: 'Hemsel, Tobias, and S Priya. “Model Based Analysis of Piezoelectric Transformers.”
    <i>Ultrasonics</i> 44, Supplement, no. 0 (2006): e741–45. <a href="https://doi.org/10.1016/j.ultras.2006.05.086">https://doi.org/10.1016/j.ultras.2006.05.086</a>.'
  ieee: T. Hemsel and S. Priya, “Model based analysis of piezoelectric transformers,”
    <i>Ultrasonics</i>, vol. 44, Supplement, no. 0, pp. e741–e745, 2006.
  mla: Hemsel, Tobias, and S. Priya. “Model Based Analysis of Piezoelectric Transformers.”
    <i>Ultrasonics</i>, vol. 44, Supplement, no. 0, 2006, pp. e741–45, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.086">10.1016/j.ultras.2006.05.086</a>.
  short: T. Hemsel, S. Priya, Ultrasonics 44, Supplement (2006) e741–e745.
date_created: 2019-04-29T09:22:21Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.086
issue: '0'
keyword:
- Piezoelectric transformers
language:
- iso: eng
page: e741 - e745
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Model based analysis of piezoelectric transformers
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9542'
author:
- first_name: Adolf
  full_name: Hofmeisterro, Adolf
  last_name: Hofmeisterro
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Otto
  full_name: Röschel, Otto
  last_name: Röschel
citation:
  ama: 'Hofmeisterro A, Sextro W, Röschel O. Error-Workspace Analysis of Plane Mechanisms.
    In: <i>Proceedings of EUCOMES, the First European Conference on Mechanism Science</i>.
    Obergurgl, {\"O}sterreich; 2006:1-12.'
  apa: Hofmeisterro, A., Sextro, W., &#38; Röschel, O. (2006). Error-Workspace Analysis
    of Plane Mechanisms. In <i>Proceedings of EUCOMES, the first European Conference
    on Mechanism Science</i> (pp. 1–12). Obergurgl, {\"O}sterreich.
  bibtex: '@inproceedings{Hofmeisterro_Sextro_Röschel_2006, place={Obergurgl, {\"O}sterreich},
    title={Error-Workspace Analysis of Plane Mechanisms}, booktitle={Proceedings of
    EUCOMES, the first European Conference on Mechanism Science}, author={Hofmeisterro,
    Adolf and Sextro, Walter and Röschel, Otto}, year={2006}, pages={1–12} }'
  chicago: Hofmeisterro, Adolf, Walter Sextro, and Otto Röschel. “Error-Workspace
    Analysis of Plane Mechanisms.” In <i>Proceedings of EUCOMES, the First European
    Conference on Mechanism Science</i>, 1–12. Obergurgl, {\"O}sterreich, 2006.
  ieee: A. Hofmeisterro, W. Sextro, and O. Röschel, “Error-Workspace Analysis of Plane
    Mechanisms,” in <i>Proceedings of EUCOMES, the first European Conference on Mechanism
    Science</i>, 2006, pp. 1–12.
  mla: Hofmeisterro, Adolf, et al. “Error-Workspace Analysis of Plane Mechanisms.”
    <i>Proceedings of EUCOMES, the First European Conference on Mechanism Science</i>,
    2006, pp. 1–12.
  short: 'A. Hofmeisterro, W. Sextro, O. Röschel, in: Proceedings of EUCOMES, the
    First European Conference on Mechanism Science, Obergurgl, {\"O}sterreich, 2006,
    pp. 1–12.'
date_created: 2019-04-29T09:25:17Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
language:
- iso: eng
page: 1-12
place: Obergurgl, {\"O}sterreich
publication: Proceedings of EUCOMES, the first European Conference on Mechanism Science
status: public
title: Error-Workspace Analysis of Plane Mechanisms
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9543'
abstract:
- lang: eng
  text: An improved concept for ultrasonic hyperthermia of tumors is presented. This
    concept is based on past experience of a German government supported project [1],
    which ended in 1984. It offers a low cost alternative to common RF- and microwave
    methods for hyperthermia of tumors with volumes between 1 and 40 ml at treatment
    times between 30 and 60 min. Our new version of the system considerably improves
    the temperature suppression in the healthy tissue around the target area and enables
    the adjustment of the beam width to the actual tumor size and the field geometry
    to the depth and shape of the tumor. The applicator can be used for moderate hyperthermia
    with tissue overheating up to 10 K or for ablation therapy with short high temperature
    pulses. Its central area is free for the integration of a commercial ultrasonic
    diagnostic sector scanner or a Doppler flow sensor in order to support the adjustment
    of the transducer and to monitor the whole area during the therapy.
author:
- first_name: E.G.
  full_name: Lierke, E.G.
  last_name: Lierke
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Lierke EG, Hemsel T. Focusing cross-fire applicator for ultrasonic hyperthermia
    of tumors. <i>Ultrasonics</i>. 2006;44, Supplement:e341-e344. doi:<a href="https://doi.org/10.1016/j.ultras.2006.07.004">10.1016/j.ultras.2006.07.004</a>
  apa: Lierke, E. G., &#38; Hemsel, T. (2006). Focusing cross-fire applicator for
    ultrasonic hyperthermia of tumors. <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>,
    e341–e344. <a href="https://doi.org/10.1016/j.ultras.2006.07.004">https://doi.org/10.1016/j.ultras.2006.07.004</a>
  bibtex: '@article{Lierke_Hemsel_2006, title={Focusing cross-fire applicator for
    ultrasonic hyperthermia of tumors}, volume={44, Supplement}, DOI={<a href="https://doi.org/10.1016/j.ultras.2006.07.004">10.1016/j.ultras.2006.07.004</a>},
    journal={Ultrasonics}, author={Lierke, E.G. and Hemsel, Tobias}, year={2006},
    pages={e341–e344} }'
  chicago: 'Lierke, E.G., and Tobias Hemsel. “Focusing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors.” <i>Ultrasonics</i> 44, Supplement (2006): e341–44. <a
    href="https://doi.org/10.1016/j.ultras.2006.07.004">https://doi.org/10.1016/j.ultras.2006.07.004</a>.'
  ieee: E. G. Lierke and T. Hemsel, “Focusing cross-fire applicator for ultrasonic
    hyperthermia of tumors,” <i>Ultrasonics</i>, vol. 44, Supplement, pp. e341–e344,
    2006.
  mla: Lierke, E. G., and Tobias Hemsel. “Focusing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors.” <i>Ultrasonics</i>, vol. 44, Supplement, 2006, pp. e341–44,
    doi:<a href="https://doi.org/10.1016/j.ultras.2006.07.004">10.1016/j.ultras.2006.07.004</a>.
  short: E.G. Lierke, T. Hemsel, Ultrasonics 44, Supplement (2006) e341–e344.
date_created: 2019-04-29T09:27:27Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.07.004
keyword:
- Moderate hyperthermia
language:
- iso: eng
page: e341 - e344
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Focusing cross-fire applicator for ultrasonic hyperthermia of tumors
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9544'
author:
- first_name: Ernst-Günter
  full_name: Lierke, Ernst-Günter
  last_name: Lierke
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Lierke E-G, Hemsel T. Focussing Cross-Fire Applicator for Ultrasonic Hyperthermia
    of Tumors. In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:215-222.'
  apa: Lierke, E.-G., &#38; Hemsel, T. (2006). Focussing Cross-Fire Applicator for
    Ultrasonic Hyperthermia of Tumors. In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i> (pp. 215–222). Paderborn,
    Germany.
  bibtex: '@inproceedings{Lierke_Hemsel_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Focussing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors}, number={Band 180}, booktitle={Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators}, author={Lierke,
    Ernst-Günter and Hemsel, Tobias}, year={2006}, pages={215–222}, collection={HNI
    Verlagsschriftenreihe} }'
  chicago: Lierke, Ernst-Günter, and Tobias Hemsel. “Focussing Cross-Fire Applicator
    for Ultrasonic Hyperthermia of Tumors.” In <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>, 215–22.
    HNI Verlagsschriftenreihe. Paderborn, Germany, 2006.
  ieee: E.-G. Lierke and T. Hemsel, “Focussing Cross-Fire Applicator for Ultrasonic
    Hyperthermia of Tumors,” in <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, 2006, no. Band 180, pp. 215–222.
  mla: Lierke, Ernst-Günter, and Tobias Hemsel. “Focussing Cross-Fire Applicator for
    Ultrasonic Hyperthermia of Tumors.” <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>, no. Band 180, 2006,
    pp. 215–22.
  short: 'E.-G. Lierke, T. Hemsel, in: Proceedings of 2nd International Workshop on
    Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006,
    pp. 215–222.'
date_created: 2019-04-29T09:29:01Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 215-222
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Focussing Cross-Fire Applicator for Ultrasonic Hyperthermia of Tumors
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9545'
author:
- first_name: B
  full_name: Mracek, B
  last_name: Mracek
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
citation:
  ama: 'Mracek B, Hemsel T, Mracek M. Powder Transport by Ultrasonic Waves. In: <i>Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>.
    HNI Verlagsschriftenreihe. Paderborn, Germany; 2006:177-182.'
  apa: Mracek, B., Hemsel, T., &#38; Mracek, M. (2006). Powder Transport by Ultrasonic
    Waves. In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i> (pp. 177–182). Paderborn, Germany.
  bibtex: '@inproceedings{Mracek_Hemsel_Mracek_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Powder Transport by Ultrasonic Waves}, number={Band
    180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators}, author={Mracek, B and Hemsel, Tobias and Mracek,
    Maik}, year={2006}, pages={177–182}, collection={HNI Verlagsschriftenreihe} }'
  chicago: Mracek, B, Tobias Hemsel, and Maik Mracek. “Powder Transport by Ultrasonic
    Waves.” In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, 177–82. HNI Verlagsschriftenreihe. Paderborn,
    Germany, 2006.
  ieee: B. Mracek, T. Hemsel, and M. Mracek, “Powder Transport by Ultrasonic Waves,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, no. Band 180, pp. 177–182.
  mla: Mracek, B., et al. “Powder Transport by Ultrasonic Waves.” <i>Proceedings of
    2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>,
    no. Band 180, 2006, pp. 177–82.
  short: 'B. Mracek, T. Hemsel, M. Mracek, in: Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany,
    2006, pp. 177–182.'
date_created: 2019-04-29T09:31:58Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 177-182
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Powder Transport by Ultrasonic Waves
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9546'
abstract:
- lang: eng
  text: Rotary ultrasonic motors have found broad industrial application in camera
    lens drives and other systems. Linear ultrasonic motors in contrast have only
    found limited applications. The main reason for the limited range of application
    of these very attractive devices seems to be their small force and power range.
    Attempts to build linear ultrasonic motors for high forces and high power applications
    have not been truly successful yet. To achieve larger force and higher power,
    multiple miniaturized motors can be combined. This approach, however, is not as
    simple as it appears at first glance. The electromechanical behaviour of the individual
    motors differs slightly due to manufacturing and assembly tolerances. The individual
    motor characteristics are strongly dependent on the driving parameters (frequency,
    voltage, temperature, pre-stress, etc.) and the driven load and the collective
    behaviour of the swarm of motors is not just the linear superposition of the individual
    drive's forces. Thus, the bundle of motors has to be synchronized and controlled
    appropriately in order to obtain an optimized drive that is not oversized and
    costly. We have investigated driving and control strategies of a set of linear
    ultrasonic motors. Our contribution will be divided into three main parts. In
    part I ultrasonic linear motors will be introduced. In part II driving strategies
    for a single motor as well as for a bundle of motors will be presented. These
    concepts will be verified by simulation results and experimental data. In part
    III a simplified model for the motor's electromechanical behaviour will be given.
author:
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: Mracek M, Hemsel T. Synergetic driving concepts for bundled miniature ultrasonic
    linear motors. <i>Ultrasonics</i>. 2006;44, Supplement:e597-e602. doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.201">10.1016/j.ultras.2006.05.201</a>
  apa: Mracek, M., &#38; Hemsel, T. (2006). Synergetic driving concepts for bundled
    miniature ultrasonic linear motors. <i>Ultrasonics</i>, <i>44</i>, <i>Supplement</i>,
    e597–e602. <a href="https://doi.org/10.1016/j.ultras.2006.05.201">https://doi.org/10.1016/j.ultras.2006.05.201</a>
  bibtex: '@article{Mracek_Hemsel_2006, title={Synergetic driving concepts for bundled
    miniature ultrasonic linear motors}, volume={44, Supplement}, DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.201">10.1016/j.ultras.2006.05.201</a>},
    journal={Ultrasonics}, author={Mracek, Maik and Hemsel, Tobias}, year={2006},
    pages={e597–e602} }'
  chicago: 'Mracek, Maik, and Tobias Hemsel. “Synergetic Driving Concepts for Bundled
    Miniature Ultrasonic Linear Motors.” <i>Ultrasonics</i> 44, Supplement (2006):
    e597–602. <a href="https://doi.org/10.1016/j.ultras.2006.05.201">https://doi.org/10.1016/j.ultras.2006.05.201</a>.'
  ieee: M. Mracek and T. Hemsel, “Synergetic driving concepts for bundled miniature
    ultrasonic linear motors,” <i>Ultrasonics</i>, vol. 44, Supplement, pp. e597–e602,
    2006.
  mla: Mracek, Maik, and Tobias Hemsel. “Synergetic Driving Concepts for Bundled Miniature
    Ultrasonic Linear Motors.” <i>Ultrasonics</i>, vol. 44, Supplement, 2006, pp.
    e597–602, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.201">10.1016/j.ultras.2006.05.201</a>.
  short: M. Mracek, T. Hemsel, Ultrasonics 44, Supplement (2006) e597–e602.
date_created: 2019-04-29T09:34:16Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.201
keyword:
- Ultrasonic linear motor
language:
- iso: eng
page: e597 - e602
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Synergetic driving concepts for bundled miniature ultrasonic linear motors
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...
---
_id: '9547'
author:
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Piotr
  full_name: Vasiljev, Piotr
  last_name: Vasiljev
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: Mracek M, Vasiljev P, Hemsel T, Wallaschek J. Self configuration of a novel
    miniature ultrasonic linear motor. <i>Solid State Phenomena</i>. 2006;113:167-172.
  apa: Mracek, M., Vasiljev, P., Hemsel, T., &#38; Wallaschek, J. (2006). Self configuration
    of a novel miniature ultrasonic linear motor. <i>Solid State Phenomena</i>, <i>113</i>,
    167–172.
  bibtex: '@article{Mracek_Vasiljev_Hemsel_Wallaschek_2006, title={Self configuration
    of a novel miniature ultrasonic linear motor}, volume={113}, journal={Solid State
    Phenomena}, publisher={Trans Tech Publ}, author={Mracek, Maik and Vasiljev, Piotr
    and Hemsel, Tobias and Wallaschek, Jörg}, year={2006}, pages={167–172} }'
  chicago: 'Mracek, Maik, Piotr Vasiljev, Tobias Hemsel, and Jörg Wallaschek. “Self
    Configuration of a Novel Miniature Ultrasonic Linear Motor.” <i>Solid State Phenomena</i>
    113 (2006): 167–72.'
  ieee: M. Mracek, P. Vasiljev, T. Hemsel, and J. Wallaschek, “Self configuration
    of a novel miniature ultrasonic linear motor,” <i>Solid State Phenomena</i>, vol.
    113, pp. 167–172, 2006.
  mla: Mracek, Maik, et al. “Self Configuration of a Novel Miniature Ultrasonic Linear
    Motor.” <i>Solid State Phenomena</i>, vol. 113, Trans Tech Publ, 2006, pp. 167–72.
  short: M. Mracek, P. Vasiljev, T. Hemsel, J. Wallaschek, Solid State Phenomena 113
    (2006) 167–172.
date_created: 2019-04-29T09:35:31Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
intvolume: '       113'
language:
- iso: eng
page: 167-172
publication: Solid State Phenomena
publisher: Trans Tech Publ
quality_controlled: '1'
status: public
title: Self configuration of a novel miniature ultrasonic linear motor
type: journal_article
user_id: '55222'
volume: 113
year: '2006'
...
---
_id: '9548'
abstract:
- lang: eng
  text: This paper presents a general model based on the electromechanical circuit
    theory. The model is set up as a mechanical equivalent model for base excited
    systems and describes the behaviour of a piezoelectric element around one resonance
    frequency which is sufficient for most practical applications. The model is extended
    to obtain the influence of geometrical and material properties. The derivated
    properties are used to describe the parameters of the general model which is easy
    to handle. Using this model either the calculation of the output power on a specific
    electric load or the determination of the design of the used piezoelectric element
    for a needed electric output power is possible. The paper focuses on the design
    of the ratio of length and width of a piezoelectric bimorph. The validity of the
    model is shown by the comparison of computed and experimental results.
author:
- first_name: Björn
  full_name: Richter, Björn
  last_name: Richter
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: 'Richter B, Twiefel J, Hemsel T, Wallaschek J. Model based design of piezoelectric
    generators utilizing geometrical and material properties. In: <i>ASME 2006 International
    Mechanical Engineering Congress and Exposition</i>. Chicago, Illinois, USA; 2006.
    doi:<a href="https://doi.org/doi:10.1115/IMECE2006-14862">doi:10.1115/IMECE2006-14862</a>'
  apa: Richter, B., Twiefel, J., Hemsel, T., &#38; Wallaschek, J. (2006). Model based
    design of piezoelectric generators utilizing geometrical and material properties.
    In <i>ASME 2006 International Mechanical Engineering Congress and Exposition</i>.
    Chicago, Illinois, USA. <a href="https://doi.org/doi:10.1115/IMECE2006-14862">https://doi.org/doi:10.1115/IMECE2006-14862</a>
  bibtex: '@inproceedings{Richter_Twiefel_Hemsel_Wallaschek_2006, place={Chicago,
    Illinois, USA}, title={Model based design of piezoelectric generators utilizing
    geometrical and material properties}, DOI={<a href="https://doi.org/doi:10.1115/IMECE2006-14862">doi:10.1115/IMECE2006-14862</a>},
    booktitle={ASME 2006 International Mechanical Engineering Congress and Exposition},
    author={Richter, Björn and Twiefel, Jens and Hemsel, Tobias and Wallaschek, Jörg},
    year={2006} }'
  chicago: Richter, Björn, Jens Twiefel, Tobias Hemsel, and Jörg Wallaschek. “Model
    Based Design of Piezoelectric Generators Utilizing Geometrical and Material Properties.”
    In <i>ASME 2006 International Mechanical Engineering Congress and Exposition</i>.
    Chicago, Illinois, USA, 2006. <a href="https://doi.org/doi:10.1115/IMECE2006-14862">https://doi.org/doi:10.1115/IMECE2006-14862</a>.
  ieee: B. Richter, J. Twiefel, T. Hemsel, and J. Wallaschek, “Model based design
    of piezoelectric generators utilizing geometrical and material properties,” in
    <i>ASME 2006 International Mechanical Engineering Congress and Exposition</i>,
    2006.
  mla: Richter, Björn, et al. “Model Based Design of Piezoelectric Generators Utilizing
    Geometrical and Material Properties.” <i>ASME 2006 International Mechanical Engineering
    Congress and Exposition</i>, 2006, doi:<a href="https://doi.org/doi:10.1115/IMECE2006-14862">doi:10.1115/IMECE2006-14862</a>.
  short: 'B. Richter, J. Twiefel, T. Hemsel, J. Wallaschek, in: ASME 2006 International
    Mechanical Engineering Congress and Exposition, Chicago, Illinois, USA, 2006.'
date_created: 2019-04-29T09:37:45Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: doi:10.1115/IMECE2006-14862
keyword:
- Materials properties
- Design
- Generators
language:
- iso: eng
place: Chicago, Illinois, USA
publication: ASME 2006 International Mechanical Engineering Congress and Exposition
quality_controlled: '1'
status: public
title: Model based design of piezoelectric generators utilizing geometrical and material
  properties
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9549'
author:
- first_name: Florian
  full_name: Schiedeck, Florian
  last_name: Schiedeck
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Schiedeck F, Hemsel T. Comparison of Piezoelectric and Shape Memory Alloy
    Based Actuators. In: <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn,
    Germany; 2006:239-242.'
  apa: Schiedeck, F., &#38; Hemsel, T. (2006). Comparison of Piezoelectric and Shape
    Memory Alloy Based Actuators. In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i> (pp. 239–242). Paderborn,
    Germany.
  bibtex: '@inproceedings{Schiedeck_Hemsel_2006, place={Paderborn, Germany}, series={HNI
    Verlagsschriftenreihe}, title={Comparison of Piezoelectric and Shape Memory Alloy
    Based Actuators}, number={Band 180}, booktitle={Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators}, author={Schiedeck,
    Florian and Hemsel, Tobias}, year={2006}, pages={239–242}, collection={HNI Verlagsschriftenreihe}
    }'
  chicago: Schiedeck, Florian, and Tobias Hemsel. “Comparison of Piezoelectric and
    Shape Memory Alloy Based Actuators.” In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>, 239–42. HNI Verlagsschriftenreihe.
    Paderborn, Germany, 2006.
  ieee: F. Schiedeck and T. Hemsel, “Comparison of Piezoelectric and Shape Memory
    Alloy Based Actuators,” in <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, 2006, no. Band 180, pp. 239–242.
  mla: Schiedeck, Florian, and Tobias Hemsel. “Comparison of Piezoelectric and Shape
    Memory Alloy Based Actuators.” <i>Proceedings of 2nd International Workshop on
    Piezoelectric Materials and Applications in Actuators</i>, no. Band 180, 2006,
    pp. 239–42.
  short: 'F. Schiedeck, T. Hemsel, in: Proceedings of 2nd International Workshop on
    Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006,
    pp. 239–242.'
date_created: 2019-04-29T09:39:25Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 239-242
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Comparison of Piezoelectric and Shape Memory Alloy Based Actuators
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9550'
author:
- first_name: Florian
  full_name: Schiedeck, Florian
  last_name: Schiedeck
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: Schiedeck F, Hemsel T, Wallaschek J. The use of shape memory alloy wires in
    actuators. <i>Solid State Phenomena</i>. 2006;113:195-198.
  apa: Schiedeck, F., Hemsel, T., &#38; Wallaschek, J. (2006). The use of shape memory
    alloy wires in actuators. <i>Solid State Phenomena</i>, <i>113</i>, 195–198.
  bibtex: '@article{Schiedeck_Hemsel_Wallaschek_2006, title={The use of shape memory
    alloy wires in actuators}, volume={113}, journal={Solid State Phenomena}, publisher={Trans
    Tech Publ}, author={Schiedeck, Florian and Hemsel, Tobias and Wallaschek, Jörg},
    year={2006}, pages={195–198} }'
  chicago: 'Schiedeck, Florian, Tobias Hemsel, and Jörg Wallaschek. “The Use of Shape
    Memory Alloy Wires in Actuators.” <i>Solid State Phenomena</i> 113 (2006): 195–98.'
  ieee: F. Schiedeck, T. Hemsel, and J. Wallaschek, “The use of shape memory alloy
    wires in actuators,” <i>Solid State Phenomena</i>, vol. 113, pp. 195–198, 2006.
  mla: Schiedeck, Florian, et al. “The Use of Shape Memory Alloy Wires in Actuators.”
    <i>Solid State Phenomena</i>, vol. 113, Trans Tech Publ, 2006, pp. 195–98.
  short: F. Schiedeck, T. Hemsel, J. Wallaschek, Solid State Phenomena 113 (2006)
    195–198.
date_created: 2019-04-29T09:40:50Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
intvolume: '       113'
language:
- iso: eng
page: 195-198
publication: Solid State Phenomena
publisher: Trans Tech Publ
quality_controlled: '1'
status: public
title: The use of shape memory alloy wires in actuators
type: journal_article
user_id: '55222'
volume: 113
year: '2006'
...
---
_id: '9551'
abstract:
- lang: eng
  text: Friction occurs in the contact between tyre and road. The friction of rubber
    material on dry surfaces is dominated by hysteresis and adhesion effects. Hysterisis
    friction is characterised by the energy dissipation within the visco-elastic material,
    which is caused by its deformation while passing the surface roughness. Hysteresis
    effects are modelled by an extended linear visco-elastic material with several
    Maxwell elements. The development of a model in the time domain allows to consider
    nonlinear effects. Additionally temperature effects are taken into account based
    on the WLF-transformation. Adhesion forces originate from molecular bindings between
    the contact partners. This effect is simulated by applying a modified model of
    Achenbach on real surfaces. The temperature distribution within the friction contact
    region is investigated experimentally as well. Furthermore global stick-slip vibrations
    of a rubber block element are investigated using a global contact model. Numerical
    results are compared with experiments performed on a tribometer test rig.
author:
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Patrick
  full_name: Moldenhauer, Patrick
  last_name: Moldenhauer
- first_name: M
  full_name: Wangenheim, M
  last_name: Wangenheim
- first_name: Markus
  full_name: Lindner, Markus
  last_name: Lindner
- first_name: Matthias
  full_name: Kröger, Matthias
  last_name: Kröger
citation:
  ama: 'Sextro W, Moldenhauer P, Wangenheim M, Lindner M, Kröger M. Contact behaviour
    of a sliding rubber element. In: Wriggers P, Nackenhorst U, eds. <i>Analysis and
    Simulation of Contact Problems</i>. Vol 27. Lecture Notes in Applied and Computational
    Mechanics. Springer Berlin Heidelberg; 2006:243-252. doi:<a href="https://doi.org/10.1007/3-540-31761-9_27">10.1007/3-540-31761-9_27</a>'
  apa: Sextro, W., Moldenhauer, P., Wangenheim, M., Lindner, M., &#38; Kröger, M.
    (2006). Contact behaviour of a sliding rubber element. In P. Wriggers &#38; U.
    Nackenhorst (Eds.), <i>Analysis and Simulation of Contact Problems</i> (Vol. 27,
    pp. 243–252). Springer Berlin Heidelberg. <a href="https://doi.org/10.1007/3-540-31761-9_27">https://doi.org/10.1007/3-540-31761-9_27</a>
  bibtex: '@inbook{Sextro_Moldenhauer_Wangenheim_Lindner_Kröger_2006, series={Lecture
    Notes in Applied and Computational Mechanics}, title={Contact behaviour of a sliding
    rubber element}, volume={27}, DOI={<a href="https://doi.org/10.1007/3-540-31761-9_27">10.1007/3-540-31761-9_27</a>},
    booktitle={Analysis and Simulation of Contact Problems}, publisher={Springer Berlin
    Heidelberg}, author={Sextro, Walter and Moldenhauer, Patrick and Wangenheim, M
    and Lindner, Markus and Kröger, Matthias}, editor={Wriggers, Peter and Nackenhorst,
    UdoEditors}, year={2006}, pages={243–252}, collection={Lecture Notes in Applied
    and Computational Mechanics} }'
  chicago: Sextro, Walter, Patrick Moldenhauer, M Wangenheim, Markus Lindner, and
    Matthias Kröger. “Contact Behaviour of a Sliding Rubber Element.” In <i>Analysis
    and Simulation of Contact Problems</i>, edited by Peter Wriggers and Udo Nackenhorst,
    27:243–52. Lecture Notes in Applied and Computational Mechanics. Springer Berlin
    Heidelberg, 2006. <a href="https://doi.org/10.1007/3-540-31761-9_27">https://doi.org/10.1007/3-540-31761-9_27</a>.
  ieee: W. Sextro, P. Moldenhauer, M. Wangenheim, M. Lindner, and M. Kröger, “Contact
    behaviour of a sliding rubber element,” in <i>Analysis and Simulation of Contact
    Problems</i>, vol. 27, P. Wriggers and U. Nackenhorst, Eds. Springer Berlin Heidelberg,
    2006, pp. 243–252.
  mla: Sextro, Walter, et al. “Contact Behaviour of a Sliding Rubber Element.” <i>Analysis
    and Simulation of Contact Problems</i>, edited by Peter Wriggers and Udo Nackenhorst,
    vol. 27, Springer Berlin Heidelberg, 2006, pp. 243–52, doi:<a href="https://doi.org/10.1007/3-540-31761-9_27">10.1007/3-540-31761-9_27</a>.
  short: 'W. Sextro, P. Moldenhauer, M. Wangenheim, M. Lindner, M. Kröger, in: P.
    Wriggers, U. Nackenhorst (Eds.), Analysis and Simulation of Contact Problems,
    Springer Berlin Heidelberg, 2006, pp. 243–252.'
date_created: 2019-04-29T09:42:01Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1007/3-540-31761-9_27
editor:
- first_name: Peter
  full_name: Wriggers, Peter
  last_name: Wriggers
- first_name: Udo
  full_name: Nackenhorst, Udo
  last_name: Nackenhorst
intvolume: '        27'
language:
- iso: eng
page: 243-252
publication: Analysis and Simulation of Contact Problems
publication_identifier:
  isbn:
  - 978-3-540-31760-9
publisher: Springer Berlin Heidelberg
series_title: Lecture Notes in Applied and Computational Mechanics
status: public
title: Contact behaviour of a sliding rubber element
type: book_chapter
user_id: '55222'
volume: 27
year: '2006'
...
---
_id: '9552'
author:
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Christopher
  full_name: Kauczor, Christopher
  last_name: Kauczor
citation:
  ama: 'Twiefel J, Hemsel T, Kauczor C. Energy harvesting with piezoelectric Elements.
    In: <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:207-212.'
  apa: Twiefel, J., Hemsel, T., &#38; Kauczor, C. (2006). Energy harvesting with piezoelectric
    Elements. In <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i> (pp. 207–212). Paderborn, Germany.
  bibtex: '@inproceedings{Twiefel_Hemsel_Kauczor_2006, place={Paderborn, Germany},
    series={HNI Verlagsschriftenreihe}, title={Energy harvesting with piezoelectric
    Elements}, number={Band 180}, booktitle={Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators}, author={Twiefel, Jens
    and Hemsel, Tobias and Kauczor, Christopher}, year={2006}, pages={207–212}, collection={HNI
    Verlagsschriftenreihe} }'
  chicago: Twiefel, Jens, Tobias Hemsel, and Christopher Kauczor. “Energy Harvesting
    with Piezoelectric Elements.” In <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>, 207–12. HNI Verlagsschriftenreihe.
    Paderborn, Germany, 2006.
  ieee: J. Twiefel, T. Hemsel, and C. Kauczor, “Energy harvesting with piezoelectric
    Elements,” in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, 2006, no. Band 180, pp. 207–212.
  mla: Twiefel, Jens, et al. “Energy Harvesting with Piezoelectric Elements.” <i>Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>,
    no. Band 180, 2006, pp. 207–12.
  short: 'J. Twiefel, T. Hemsel, C. Kauczor, in: Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn,
    Germany, 2006, pp. 207–212.'
date_created: 2019-04-29T09:43:30Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: Band 180
language:
- iso: eng
page: 207-212
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Energy harvesting with piezoelectric Elements
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9553'
abstract:
- lang: eng
  text: 'In the design process of energy harvesting systems based on piezoelectric
    elements, achievable energy output is the most interesting factor. To estimate
    this amount a priori manufacturing of prototypes a mathematical model is very
    helpful. Within this contribution we will introduce a model based on electro-mechanical
    circuit theory. Its parameters are identified by measurements and the model is
    validated by comparison to experimental results. The model is designed to support
    the development-engineer in the dimensioning of energy harvesting units to specific
    application demands. Two main challenges in device design are investigated with
    the mathematical model: influence of the ambient excitation frequency, and influence
    of the load impedance. Typically, the equivalent model approach delivers models
    for piezoelectric elements that are driven in resonance by electrical excitation.
    In the case of energy harvesting the piezoelectric elements are excited mechanically
    and most often non-resonant. Thus, we first set up a mechanical equivalent model
    for base excited systems. In first approximation it represents an energy harvesting
    unit around one resonance frequency. The model is expandable for a wider frequency
    range using the superpositioning of multiple circuits. From the viewpoint of optimum
    energy transformation between mechanical and electrical energy it is favorable
    to drive piezoelectric elements at resonance or anti-resonance. Thus, an energy
    harvesting system should be tuned to the excitation frequency.'
citation:
  ama: Twiefel J, Richter B, Hemsel T, Wallaschek J, eds. <i>Model-Based Design of
    Piezoelectric Energy Harvesting Systems</i>. Vol 6169.; 2006:616909-616909-616910.
    doi:<a href="https://doi.org/10.1117/12.658623">10.1117/12.658623</a>
  apa: Twiefel, J., Richter, B., Hemsel, T., &#38; Wallaschek, J. (Eds.). (2006).
    <i>Model-based design of piezoelectric energy harvesting systems</i> (Vol. 6169,
    pp. 616909-616909–616910). <a href="https://doi.org/10.1117/12.658623">https://doi.org/10.1117/12.658623</a>
  bibtex: '@book{Twiefel_Richter_Hemsel_Wallaschek_2006, title={Model-based design
    of piezoelectric energy harvesting systems}, volume={6169}, DOI={<a href="https://doi.org/10.1117/12.658623">10.1117/12.658623</a>},
    year={2006}, pages={616909-616909–10} }'
  chicago: Twiefel, Jens, Björn Richter, Tobias Hemsel, and Jörg Wallaschek, eds.
    <i>Model-Based Design of Piezoelectric Energy Harvesting Systems</i>. Vol. 6169,
    2006. <a href="https://doi.org/10.1117/12.658623">https://doi.org/10.1117/12.658623</a>.
  ieee: J. Twiefel, B. Richter, T. Hemsel, and J. Wallaschek, Eds., <i>Model-based
    design of piezoelectric energy harvesting systems</i>, vol. 6169. 2006, pp. 616909-616909–10.
  mla: Twiefel, Jens, et al., editors. <i>Model-Based Design of Piezoelectric Energy
    Harvesting Systems</i>. Vol. 6169, 2006, pp. 616909-616909–10, doi:<a href="https://doi.org/10.1117/12.658623">10.1117/12.658623</a>.
  short: J. Twiefel, B. Richter, T. Hemsel, J. Wallaschek, eds., Model-Based Design
    of Piezoelectric Energy Harvesting Systems, 2006.
date_created: 2019-04-29T09:46:37Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1117/12.658623
editor:
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Björn
  full_name: Richter, Björn
  last_name: Richter
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
intvolume: '      6169'
language:
- iso: eng
page: 616909-616909-10
status: public
title: Model-based design of piezoelectric energy harvesting systems
type: conference_editor
user_id: '55222'
volume: 6169
year: '2006'
...
---
_id: '9558'
author:
- first_name: S
  full_name: Wilmanns, S
  last_name: Wilmanns
- first_name: K
  full_name: Nakamura, K
  last_name: Nakamura
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
citation:
  ama: 'Wilmanns S, Nakamura K, Mracek M, Hemsel T. Non-resonant piezoelectric motors
    driven in audible frequency range. In: <i>Proceedings of 2nd International Workshop
    on Piezoelectric Materials and Applications in Actuators</i>. Vol Band 180. HNI
    Verlagsschriftenreihe. Paderborn, Germany; 2006:205.'
  apa: Wilmanns, S., Nakamura, K., Mracek, M., &#38; Hemsel, T. (2006). Non-resonant
    piezoelectric motors driven in audible frequency range. In <i>Proceedings of 2nd
    International Workshop on Piezoelectric Materials and Applications in Actuators</i>
    (Vol. Band 180, p. 205). Paderborn, Germany.
  bibtex: '@inproceedings{Wilmanns_Nakamura_Mracek_Hemsel_2006, place={Paderborn,
    Germany}, series={HNI Verlagsschriftenreihe}, title={Non-resonant piezoelectric
    motors driven in audible frequency range}, volume={Band 180}, booktitle={Proceedings
    of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators},
    author={Wilmanns, S and Nakamura, K and Mracek, Maik and Hemsel, Tobias}, year={2006},
    pages={205}, collection={HNI Verlagsschriftenreihe} }'
  chicago: Wilmanns, S, K Nakamura, Maik Mracek, and Tobias Hemsel. “Non-Resonant
    Piezoelectric Motors Driven in Audible Frequency Range.” In <i>Proceedings of
    2nd International Workshop on Piezoelectric Materials and Applications in Actuators</i>,
    Band 180:205. HNI Verlagsschriftenreihe. Paderborn, Germany, 2006.
  ieee: S. Wilmanns, K. Nakamura, M. Mracek, and T. Hemsel, “Non-resonant piezoelectric
    motors driven in audible frequency range,” in <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>, 2006, vol.
    Band 180, p. 205.
  mla: Wilmanns, S., et al. “Non-Resonant Piezoelectric Motors Driven in Audible Frequency
    Range.” <i>Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators</i>, vol. Band 180, 2006, p. 205.
  short: 'S. Wilmanns, K. Nakamura, M. Mracek, T. Hemsel, in: Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn,
    Germany, 2006, p. 205.'
date_created: 2019-04-29T09:53:46Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
language:
- iso: eng
page: '205'
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Non-resonant piezoelectric motors driven in audible frequency range
type: conference
user_id: '55222'
volume: Band 180
year: '2006'
...
---
_id: '9559'
author:
- first_name: W
  full_name: Zhou, W
  last_name: Zhou
- first_name: Bo
  full_name: Fu, Bo
  last_name: Fu
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Jörg
  full_name: Wallaschek, Jörg
  last_name: Wallaschek
citation:
  ama: 'Zhou W, Fu B, Hemsel T, Wallaschek J. Piezoelectrics in dental tools. In:
    <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications
    in Actuators</i>. Vol Band 180. HNI Verlagsschriftenreihe. Paderborn, Germany;
    2006:213.'
  apa: Zhou, W., Fu, B., Hemsel, T., &#38; Wallaschek, J. (2006). Piezoelectrics in
    dental tools. In <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i> (Vol. Band 180, p. 213). Paderborn,
    Germany.
  bibtex: '@inproceedings{Zhou_Fu_Hemsel_Wallaschek_2006, place={Paderborn, Germany},
    series={HNI Verlagsschriftenreihe}, title={Piezoelectrics in dental tools}, volume={Band
    180}, booktitle={Proceedings of 2nd International Workshop on Piezoelectric Materials
    and Applications in Actuators}, author={Zhou, W and Fu, Bo and Hemsel, Tobias
    and Wallaschek, Jörg}, year={2006}, pages={213}, collection={HNI Verlagsschriftenreihe}
    }'
  chicago: Zhou, W, Bo Fu, Tobias Hemsel, and Jörg Wallaschek. “Piezoelectrics in
    Dental Tools.” In <i>Proceedings of 2nd International Workshop on Piezoelectric
    Materials and Applications in Actuators</i>, Band 180:213. HNI Verlagsschriftenreihe.
    Paderborn, Germany, 2006.
  ieee: W. Zhou, B. Fu, T. Hemsel, and J. Wallaschek, “Piezoelectrics in dental tools,”
    in <i>Proceedings of 2nd International Workshop on Piezoelectric Materials and
    Applications in Actuators</i>, 2006, vol. Band 180, p. 213.
  mla: Zhou, W., et al. “Piezoelectrics in Dental Tools.” <i>Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators</i>, vol. Band
    180, 2006, p. 213.
  short: 'W. Zhou, B. Fu, T. Hemsel, J. Wallaschek, in: Proceedings of 2nd International
    Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn,
    Germany, 2006, p. 213.'
date_created: 2019-04-29T09:57:26Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
language:
- iso: eng
page: '213'
place: Paderborn, Germany
publication: Proceedings of 2nd International Workshop on Piezoelectric Materials
  and Applications in Actuators
series_title: HNI Verlagsschriftenreihe
status: public
title: Piezoelectrics in dental tools
type: conference
user_id: '55222'
volume: Band 180
year: '2006'
...
---
_id: '9266'
abstract:
- lang: eng
  text: The present paper deals with the forced vibration analysis of a test structure.
    The test structure consists of two parts, an upper and a lower half pipe, joint
    in two bolted flanges which represent the extended friction contacts. Depending
    on the clamping loads different normal pressure distributions can be established
    in the contact interfaces. Since the test structure is loaded with a harmonic
    external force relative displacements occur in the contact interface. This leads
    to microslip effects affecting the dynamic behaviour. The experimental validation
    of the calculation method accounting for these effects is shown by comparing measured
    and calculated frequency response functions (FRF). ({\^A}{\copyright} 2005 WILEY-VCH
    Verlag GmbH & Co. KGaA, Weinheim)
author:
- first_name: Alexander
  full_name: Genzo, Alexander
  last_name: Genzo
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
citation:
  ama: Genzo A, Sextro W, Popp K. Analysis of the Forced Vibration of Two Bolted Half-Pipes
    with Extended Friction Contacts. <i>PAMM</i>. 2005;5(1):91-92. doi:<a href="https://doi.org/10.1002/pamm.200510026">10.1002/pamm.200510026</a>
  apa: Genzo, A., Sextro, W., &#38; Popp, K. (2005). Analysis of the Forced Vibration
    of Two Bolted Half-Pipes with Extended Friction Contacts. <i>PAMM</i>, <i>5</i>(1),
    91–92. <a href="https://doi.org/10.1002/pamm.200510026">https://doi.org/10.1002/pamm.200510026</a>
  bibtex: '@article{Genzo_Sextro_Popp_2005, title={Analysis of the Forced Vibration
    of Two Bolted Half-Pipes with Extended Friction Contacts}, volume={5}, DOI={<a
    href="https://doi.org/10.1002/pamm.200510026">10.1002/pamm.200510026</a>}, number={1},
    journal={PAMM}, publisher={WILEY-VCH Verlag}, author={Genzo, Alexander and Sextro,
    Walter and Popp, Karl}, year={2005}, pages={91–92} }'
  chicago: 'Genzo, Alexander, Walter Sextro, and Karl Popp. “Analysis of the Forced
    Vibration of Two Bolted Half-Pipes with Extended Friction Contacts.” <i>PAMM</i>
    5, no. 1 (2005): 91–92. <a href="https://doi.org/10.1002/pamm.200510026">https://doi.org/10.1002/pamm.200510026</a>.'
  ieee: A. Genzo, W. Sextro, and K. Popp, “Analysis of the Forced Vibration of Two
    Bolted Half-Pipes with Extended Friction Contacts,” <i>PAMM</i>, vol. 5, no. 1,
    pp. 91–92, 2005.
  mla: Genzo, Alexander, et al. “Analysis of the Forced Vibration of Two Bolted Half-Pipes
    with Extended Friction Contacts.” <i>PAMM</i>, vol. 5, no. 1, WILEY-VCH Verlag,
    2005, pp. 91–92, doi:<a href="https://doi.org/10.1002/pamm.200510026">10.1002/pamm.200510026</a>.
  short: A. Genzo, W. Sextro, K. Popp, PAMM 5 (2005) 91–92.
date_created: 2019-04-18T07:34:48Z
date_updated: 2022-01-06T07:04:11Z
department:
- _id: '151'
doi: 10.1002/pamm.200510026
intvolume: '         5'
issue: '1'
language:
- iso: eng
page: 91-92
publication: PAMM
publication_identifier:
  issn:
  - 1617-7061
publisher: WILEY-VCH Verlag
status: public
title: Analysis of the Forced Vibration of Two Bolted Half-Pipes with Extended Friction
  Contacts
type: journal_article
user_id: '55222'
volume: 5
year: '2005'
...
---
_id: '9526'
abstract:
- lang: eng
  text: The present paper deals with the forced vibration analysis of a test structure.
    The test structure consists of two parts, an upper and a lower half pipe, joint
    in two bolted flanges which represent the extended friction contacts. Depending
    on the clamping loads different normal pressure distributions can be established
    in the contact interfaces. Since the test structure is loaded with a harmonic
    external force relative displacements occur in the contact interface. This leads
    to microslip effects affecting the dynamic behaviour. The experimental validation
    of the calculation method accounting for these effects is shown by comparing measured
    and calculated frequency response functions (FRF). ({\^A}{\copyright} 2005 WILEY-VCH
    Verlag GmbH & Co. KGaA, Weinheim)
author:
- first_name: Alexander
  full_name: Genzo, Alexander
  last_name: Genzo
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Karl
  full_name: Popp, Karl
  last_name: Popp
citation:
  ama: Genzo A, Sextro W, Popp K. Analysis of the Forced Vibration of Two Bolted Half-Pipes
    with Extended Friction Contacts. <i>PAMM</i>. 2005;5(1):91-92. doi:<a href="https://doi.org/10.1002/pamm.200510026">10.1002/pamm.200510026</a>
  apa: Genzo, A., Sextro, W., &#38; Popp, K. (2005). Analysis of the Forced Vibration
    of Two Bolted Half-Pipes with Extended Friction Contacts. <i>PAMM</i>, <i>5</i>(1),
    91–92. <a href="https://doi.org/10.1002/pamm.200510026">https://doi.org/10.1002/pamm.200510026</a>
  bibtex: '@article{Genzo_Sextro_Popp_2005, title={Analysis of the Forced Vibration
    of Two Bolted Half-Pipes with Extended Friction Contacts}, volume={5}, DOI={<a
    href="https://doi.org/10.1002/pamm.200510026">10.1002/pamm.200510026</a>}, number={1},
    journal={PAMM}, publisher={WILEY-VCH Verlag}, author={Genzo, Alexander and Sextro,
    Walter and Popp, Karl}, year={2005}, pages={91–92} }'
  chicago: 'Genzo, Alexander, Walter Sextro, and Karl Popp. “Analysis of the Forced
    Vibration of Two Bolted Half-Pipes with Extended Friction Contacts.” <i>PAMM</i>
    5, no. 1 (2005): 91–92. <a href="https://doi.org/10.1002/pamm.200510026">https://doi.org/10.1002/pamm.200510026</a>.'
  ieee: A. Genzo, W. Sextro, and K. Popp, “Analysis of the Forced Vibration of Two
    Bolted Half-Pipes with Extended Friction Contacts,” <i>PAMM</i>, vol. 5, no. 1,
    pp. 91–92, 2005.
  mla: Genzo, Alexander, et al. “Analysis of the Forced Vibration of Two Bolted Half-Pipes
    with Extended Friction Contacts.” <i>PAMM</i>, vol. 5, no. 1, WILEY-VCH Verlag,
    2005, pp. 91–92, doi:<a href="https://doi.org/10.1002/pamm.200510026">10.1002/pamm.200510026</a>.
  short: A. Genzo, W. Sextro, K. Popp, PAMM 5 (2005) 91–92.
date_created: 2019-04-29T08:32:42Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1002/pamm.200510026
intvolume: '         5'
issue: '1'
language:
- iso: eng
page: 91-92
publication: PAMM
publication_identifier:
  issn:
  - 1617-7061
publisher: WILEY-VCH Verlag
status: public
title: Analysis of the Forced Vibration of Two Bolted Half-Pipes with Extended Friction
  Contacts
type: journal_article
user_id: '55222'
volume: 5
year: '2005'
...