---
_id: '9919'
abstract:
- lang: eng
text: This is a study of a combined load restoration and generator start-up procedure.
The procedure is structured into three stages according to the power system status
and the goal of load restoration. Moreover, for each load restoration stage, the
proposed algorithm determines a load restoration sequence by considering renewable
energy such as solar and wind park to achieve objective functions. The validity
and performance of the proposed algorithm is demonstrated through simulations
using IEEE-39 network.
author:
- first_name: Cong
full_name: Shen, Cong
last_name: Shen
- first_name: Paul
full_name: Kaufmann, Paul
last_name: Kaufmann
- first_name: Martin
full_name: Braun, Martin
last_name: Braun
citation:
ama: Shen C, Kaufmann P, Braun M. Three-Stage Power System Restoration Methodology
Considering Renewable Energies. Elsevier International Journal of Electrical
Power and Energy Systems (IJEPES). 2017;94:287-299. doi:10.1016/j.ijepes.2017.07.007
apa: Shen, C., Kaufmann, P., & Braun, M. (2017). Three-Stage Power System Restoration
Methodology Considering Renewable Energies. Elsevier International Journal
of Electrical Power and Energy Systems (IJEPES), 94, 287–299. https://doi.org/10.1016/j.ijepes.2017.07.007
bibtex: '@article{Shen_Kaufmann_Braun_2017, title={Three-Stage Power System Restoration
Methodology Considering Renewable Energies}, volume={94}, DOI={10.1016/j.ijepes.2017.07.007},
journal={Elsevier International Journal of Electrical Power and Energy Systems
(IJEPES)}, author={Shen, Cong and Kaufmann, Paul and Braun, Martin}, year={2017},
pages={287–299} }'
chicago: 'Shen, Cong, Paul Kaufmann, and Martin Braun. “Three-Stage Power System
Restoration Methodology Considering Renewable Energies.” Elsevier International
Journal of Electrical Power and Energy Systems (IJEPES) 94 (2017): 287–99.
https://doi.org/10.1016/j.ijepes.2017.07.007.'
ieee: C. Shen, P. Kaufmann, and M. Braun, “Three-Stage Power System Restoration
Methodology Considering Renewable Energies,” Elsevier International Journal
of Electrical Power and Energy Systems (IJEPES), vol. 94, pp. 287–299, 2017.
mla: Shen, Cong, et al. “Three-Stage Power System Restoration Methodology Considering
Renewable Energies.” Elsevier International Journal of Electrical Power and
Energy Systems (IJEPES), vol. 94, 2017, pp. 287–99, doi:10.1016/j.ijepes.2017.07.007.
short: C. Shen, P. Kaufmann, M. Braun, Elsevier International Journal of Electrical
Power and Energy Systems (IJEPES) 94 (2017) 287–299.
date_created: 2019-05-22T13:14:20Z
date_updated: 2019-10-06T21:56:18Z
department:
- _id: '78'
doi: 10.1016/j.ijepes.2017.07.007
intvolume: ' 94'
keyword:
- Load restorationRestoration stageRenewable energyVoltage/frequency fluctuations
language:
- iso: eng
page: 287-299
publication: Elsevier International Journal of Electrical Power and Energy Systems
(IJEPES)
publication_status: published
status: public
title: Three-Stage Power System Restoration Methodology Considering Renewable Energies
type: journal_article
user_id: '3118'
volume: 94
year: '2017'
...
---
_id: '9941'
author:
- first_name: Alex
full_name: Dridger, Alex
last_name: Dridger
- first_name: Ismail
full_name: Caylak, Ismail
last_name: Caylak
- first_name: Rolf
full_name: Mahnken, Rolf
last_name: Mahnken
citation:
ama: 'Dridger A, Caylak I, Mahnken R. “A POSSIBILISTIC APPROACH FOR LINEAR ISOTROPIC
ELASTICITY USING THE FUZZY FINITE ELEMENT METHOD.” In: Proceedings of the 2nd
International Conference on Uncertainty Quantification in Computational Sciences
and Engineering (UNCECOMP 2017). ; 2017. doi:10.7712/120217.5392.16813'
apa: Dridger, A., Caylak, I., & Mahnken, R. (2017). “A POSSIBILISTIC APPROACH
FOR LINEAR ISOTROPIC ELASTICITY USING THE FUZZY FINITE ELEMENT METHOD.” In Proceedings
of the 2nd International Conference on Uncertainty Quantification in Computational
Sciences and Engineering (UNCECOMP 2017). https://doi.org/10.7712/120217.5392.16813
bibtex: '@inproceedings{Dridger_Caylak_Mahnken_2017, title={“A POSSIBILISTIC APPROACH
FOR LINEAR ISOTROPIC ELASTICITY USING THE FUZZY FINITE ELEMENT METHOD”}, DOI={10.7712/120217.5392.16813},
booktitle={Proceedings of the 2nd International Conference on Uncertainty Quantification
in Computational Sciences and Engineering (UNCECOMP 2017)}, author={Dridger, Alex
and Caylak, Ismail and Mahnken, Rolf}, year={2017} }'
chicago: Dridger, Alex, Ismail Caylak, and Rolf Mahnken. “‘A POSSIBILISTIC APPROACH
FOR LINEAR ISOTROPIC ELASTICITY USING THE FUZZY FINITE ELEMENT METHOD.’” In Proceedings
of the 2nd International Conference on Uncertainty Quantification in Computational
Sciences and Engineering (UNCECOMP 2017), 2017. https://doi.org/10.7712/120217.5392.16813.
ieee: A. Dridger, I. Caylak, and R. Mahnken, “‘A POSSIBILISTIC APPROACH FOR LINEAR
ISOTROPIC ELASTICITY USING THE FUZZY FINITE ELEMENT METHOD,’” in Proceedings
of the 2nd International Conference on Uncertainty Quantification in Computational
Sciences and Engineering (UNCECOMP 2017), 2017.
mla: Dridger, Alex, et al. “‘A POSSIBILISTIC APPROACH FOR LINEAR ISOTROPIC ELASTICITY
USING THE FUZZY FINITE ELEMENT METHOD.’” Proceedings of the 2nd International
Conference on Uncertainty Quantification in Computational Sciences and Engineering
(UNCECOMP 2017), 2017, doi:10.7712/120217.5392.16813.
short: 'A. Dridger, I. Caylak, R. Mahnken, in: Proceedings of the 2nd International
Conference on Uncertainty Quantification in Computational Sciences and Engineering
(UNCECOMP 2017), 2017.'
date_created: 2019-05-24T12:59:52Z
date_updated: 2019-05-24T13:01:18Z
department:
- _id: '154'
doi: 10.7712/120217.5392.16813
language:
- iso: eng
publication: Proceedings of the 2nd International Conference on Uncertainty Quantification
in Computational Sciences and Engineering (UNCECOMP 2017)
publication_identifier:
isbn:
- '9786188284449'
publication_status: published
status: public
title: '"A POSSIBILISTIC APPROACH FOR LINEAR ISOTROPIC ELASTICITY USING THE FUZZY
FINITE ELEMENT METHOD"'
type: conference
user_id: '78813'
year: '2017'
...
---
_id: '9969'
abstract:
- lang: eng
text: Zuverlässigkeit, Sicherheit und Verfügbarkeit gewinnen bei der Anwendung von
technischen Systemen eine immer größere Bedeutung. Aus diesem Grund hat sich Condition
Monitoring, die Zustandsüberwachung eines technischen Produkts, in verschiedenen
Industriebranchen etabliert. Die sensorbasierte Überwachung eines Produkts während
seiner Betriebsdauer in Kombination mit Condition Monitoring Methoden ermöglichen
die Bestimmung des aktuellen Zustands des Produkts und somit eine Diagnose, ob
das Produkt seine ihm zugeschriebene Funktion zum aktuellen Zeitpunkt erfüllt.
Neben Diagnosen bietet Condition Monitoring auch die Möglichkeit Prognosen aufzustellen,
dabei wird die restliche Nutzungsdauer des Produkts aufbauend auf geeigneten Sensordaten
geschätzt. So kann eine intelligente Wartungsplanung umgesetzt werden, die im
Gegensatz zu klassischen Ansätzen keine festen Wartungsintervalle benötigt und
die Nachteile einer rein reaktiven Wartung kompensiert. Stattdessen ist es möglich
ein Element bis vor das Ende seiner Lebensdauer zu nutzen und erst dann zu warten,
um eine optimale Nutzung zu gewährleisten. Durch eine Bestimmung der verbleibenden
Restlebensdauer während des Betriebs ist eine optimale Wartungsplanung möglich,
wodurch die Verfügbarkeit und die Auslastung der überwachten Produkte signifikant
gesteigert werden kann. In dieser Arbeit soll ein produktspezifisches Condition
Monitoring System für Gummi-Metall-Elemente entwickelt werden. Diese Elemente
werden zur Federung, Geräusch- und/oder Schwingungsisolation in vielen verschiedenen
Anwendungen eingesetzt, wie bspw. in Nutz- und Schienenfahrzeugen oder Windenergieanlagen.
In Industrie und Forschung werden bereits Zustandsüberwachungen von Systemen mit
integrierten Gummi-Metall-Elementen eingesetzt, allerdings noch keine Condition
Monitoring Systeme zur alleinigen Zustandsüberwachung dieser Elemente. Aktuell
ist es üblich die Lebensdauer dieser Elemente aufbauend auf beschleunigten Lebensdauerversuchen
und Erfahrungswerten abzuschätzen. Mit dem Ziel die Lebensdauer des fokussierten
Produkts präziser vorherzusagen und damit eine intelligente Wartungsplanung zu
ermöglichen, wird die Entwicklung eines Condition Monitoring Systems für Gummi-Metall-Elemente
angestrebt und in dieser Arbeit erläutert.
author:
- first_name: Amelie
full_name: Bender, Amelie
id: '54290'
last_name: Bender
- first_name: Thorben
full_name: Kaul, Thorben
id: '14802'
last_name: Kaul
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Bender A, Kaul T, Sextro W. Entwicklung eines Condition Monitoring Systems
für Gummi-Metall-Elemente. In: Verlagsschriftenreihe Des Heinz Nixdorf Instituts
Band 369, Paderborn, 2017. Wissenschaftsforum Intelligente Technische Systeme
(WInTeSys) 2017; 2017:347-358.'
apa: Bender, A., Kaul, T., & Sextro, W. (2017). Entwicklung eines Condition
Monitoring Systems für Gummi-Metall-Elemente. In Verlagsschriftenreihe des
Heinz Nixdorf Instituts Band 369, Paderborn, 2017 (pp. 347–358). Wissenschaftsforum
Intelligente Technische Systeme (WInTeSys) 2017.
bibtex: '@inproceedings{Bender_Kaul_Sextro_2017, place={Wissenschaftsforum Intelligente
Technische Systeme (WInTeSys) 2017}, title={Entwicklung eines Condition Monitoring
Systems für Gummi-Metall-Elemente}, booktitle={Verlagsschriftenreihe des Heinz
Nixdorf Instituts Band 369, Paderborn, 2017}, author={Bender, Amelie and Kaul,
Thorben and Sextro, Walter}, year={2017}, pages={347–358} }'
chicago: Bender, Amelie, Thorben Kaul, and Walter Sextro. “Entwicklung Eines Condition
Monitoring Systems Für Gummi-Metall-Elemente.” In Verlagsschriftenreihe Des
Heinz Nixdorf Instituts Band 369, Paderborn, 2017, 347–58. Wissenschaftsforum
Intelligente Technische Systeme (WInTeSys) 2017, 2017.
ieee: A. Bender, T. Kaul, and W. Sextro, “Entwicklung eines Condition Monitoring
Systems für Gummi-Metall-Elemente,” in Verlagsschriftenreihe des Heinz Nixdorf
Instituts Band 369, Paderborn, 2017, 2017, pp. 347–358.
mla: Bender, Amelie, et al. “Entwicklung Eines Condition Monitoring Systems Für
Gummi-Metall-Elemente.” Verlagsschriftenreihe Des Heinz Nixdorf Instituts Band
369, Paderborn, 2017, 2017, pp. 347–58.
short: 'A. Bender, T. Kaul, W. Sextro, in: Verlagsschriftenreihe Des Heinz Nixdorf
Instituts Band 369, Paderborn, 2017, Wissenschaftsforum Intelligente Technische
Systeme (WInTeSys) 2017, 2017, pp. 347–358.'
date_created: 2019-05-27T09:25:42Z
date_updated: 2019-09-30T08:02:40Z
department:
- _id: '151'
keyword:
- Zustandsüberwachung
- Condition Monitoring
- Prognose
- Gummi-Metall-Elemente
- Restlebensdauerschätzung
language:
- iso: eng
page: 347-358
place: Wissenschaftsforum Intelligente Technische Systeme (WInTeSys) 2017
publication: Verlagsschriftenreihe des Heinz Nixdorf Instituts Band 369, Paderborn,
2017
quality_controlled: '1'
status: public
title: Entwicklung eines Condition Monitoring Systems für Gummi-Metall-Elemente
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9970'
abstract:
- lang: eng
text: In vielen verschiedenen Industriezweigen hat sich Condition Monitoring aufgrund
seiner finanziellen und sicherheitstechnischen Vorteile bereits etabliert. Um
die Verlässlichkeit und die Auslastung zu steigern, sowie um die Lebenszykluskosten
zu reduzieren, steigt auch im Schienenfahrzeugbereich die Anzahl an eingesetzten
Condition Monitoring Systemen. Studien zu Versagensmodi von Schienenfahrzeugen
haben gezeigt, dass Versagensursachen meistens in den Radprofilen oder im Fahrwerk
liegen [1]. Wird das Fahrwerk heute mittels Condition Monitoring überwacht, werden
hierfür häufig Sensoren an den Wagons angebracht, um bspw. deren Schwingungen
zu kontrollieren [2, 3]. In dieser Arbeit liegt der Fokus auf Gummi-Metall-Elementen
(GM-Elementen) der Jörn GmbH.; als elastische Lager im Drehgestell sind diese
Teil des Fahrwerks eines Schienenfahrzeugs. Mit dem Ziel die Wartungsplanung dieser
Elemente zu optimieren, ist untersucht worden, ob diese Elemente einzeln mittels
Condition Monitoring überwacht werden können. Die hierfür durchgeführten beschleunigten
Lebensdauertests werden im nächsten Abschnitt erläutert. Anschließend werden die
modellbasierten Methoden dargestellt, die aufbauend auf den im Versuch aufgezeichneten
Daten eine Prognose der nutzbaren Restlebensdauer (RUL, remaining useful lifetime)
der GM-Elemente aufstellen. Im letzten Abschnitt folgen eine kurze Zusammenfassung
und ein Ausblick.
author:
- first_name: Amelie
full_name: Bender, Amelie
id: '54290'
last_name: Bender
- first_name: James Kuria
full_name: Kimotho, James Kuria
last_name: Kimotho
- first_name: Sergej
full_name: Kohl, Sergej
last_name: Kohl
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Kai
full_name: Reinke, Kai
last_name: Reinke
citation:
ama: 'Bender A, Kimotho JK, Kohl S, Sextro W, Reinke K. Modellbasierte Prognose
der nutzbaren Restlebensdauer von Gummi-Metall-Elementen. In: 15. Internationale
Schienenfahrzeugtagung. ; 2017:123-125.'
apa: Bender, A., Kimotho, J. K., Kohl, S., Sextro, W., & Reinke, K. (2017).
Modellbasierte Prognose der nutzbaren Restlebensdauer von Gummi-Metall-Elementen.
In 15. Internationale Schienenfahrzeugtagung (pp. 123–125).
bibtex: '@inproceedings{Bender_Kimotho_Kohl_Sextro_Reinke_2017, title={Modellbasierte
Prognose der nutzbaren Restlebensdauer von Gummi-Metall-Elementen}, booktitle={15.
Internationale Schienenfahrzeugtagung}, author={Bender, Amelie and Kimotho, James
Kuria and Kohl, Sergej and Sextro, Walter and Reinke, Kai}, year={2017}, pages={123–125}
}'
chicago: Bender, Amelie, James Kuria Kimotho, Sergej Kohl, Walter Sextro, and Kai
Reinke. “Modellbasierte Prognose Der Nutzbaren Restlebensdauer von Gummi-Metall-Elementen.”
In 15. Internationale Schienenfahrzeugtagung, 123–25, 2017.
ieee: A. Bender, J. K. Kimotho, S. Kohl, W. Sextro, and K. Reinke, “Modellbasierte
Prognose der nutzbaren Restlebensdauer von Gummi-Metall-Elementen,” in 15.
Internationale Schienenfahrzeugtagung, 2017, pp. 123–125.
mla: Bender, Amelie, et al. “Modellbasierte Prognose Der Nutzbaren Restlebensdauer
von Gummi-Metall-Elementen.” 15. Internationale Schienenfahrzeugtagung,
2017, pp. 123–25.
short: 'A. Bender, J.K. Kimotho, S. Kohl, W. Sextro, K. Reinke, in: 15. Internationale
Schienenfahrzeugtagung, 2017, pp. 123–125.'
date_created: 2019-05-27T09:27:19Z
date_updated: 2019-05-27T09:29:18Z
department:
- _id: '151'
language:
- iso: eng
page: 123-125
publication: 15. Internationale Schienenfahrzeugtagung
status: public
title: Modellbasierte Prognose der nutzbaren Restlebensdauer von Gummi-Metall-Elementen
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9971'
abstract:
- lang: eng
text: 'In der Windenergieindustrie haben die Größen Zuverlässigkeit, Sicherheit
und Verfügbarkeit eine enorme Bedeutung erlangt aufgrund des Trends Windenergieanlagen
zur optimalen Windausnutzung an schwer zugänglichen Positionen aufzustellen, wie
bspw. Offshore. Dies führt zu erschwerten Wartungsbedingungen und damit zu höheren
Kosten. Der Einsatz von Condition Monitoring hat sich in dieser Industrie etabliert,
denn diese Technik ermöglicht eine Zustandsdiagnose des überwachten Systems und
eine Prognose seiner nutzbaren Restlebensdauer (remaining useful life: RUL), jeweils
basierend auf geeigneten Sensordaten. In dieser Arbeit wird ein Konzept für ein
produktspezifisches Condition-Monitoring-System für Gummi-Metall-Elemente (GM-Elemente)
vorgestellt, welches den Schwerpunkt auf die Prognose der RUL dieser Elemente
setzt. In Windenergieanlagen werden zahlreiche GM-Elemente zur Geräusch- und Schwingungsisolation
verwendet. Der Einsatz des hier vorgestellten produktspezifischen Condition-Monitoring-Systems
kann somit einen erheblichen Beitrag zum verlässlichen Betrieb von Windenergieanlagen
liefern, da die Überwachung einzelner Komponenten in die Zustandsüberwachung der
gesamten Anlage integriert und dadurch der Betrieb der Anlage optimiert werden
kann. In dieser Arbeit werden einige Herausforderungen diskutiert, die sich bei
der Entwicklung eines Condition-Monitoring-Systems für GM-Elemente ergeben. So
wird evaluiert, welche Größen sich zur Beschreibung der Alterung eines spezifischen
Elements eignen und wie diese gemessen werden können. Temperaturen werden bereits
in einigen technischen Systemen, wie auch in Windenergieanlagen, aufgezeichnet
und ausgewertet, aber ihr Potential für die Bestimmung der RUL der überwachten
Komponente ist noch nicht ausgeschöpft. Hier wird eine Lösungsmöglichkeit vorgestellt,
die auf Temperatursensoren aufbaut. Als Grundlage für die Entwicklung des Condition-Monitoring-Systems
wurden beschleunigte Lebensdauerversuche der GM-Elemente auf einem Versuchsstand
zur Schwingungsanalyse durchgeführt. In diesen Lebensdauerversuchen wird die mechanische
Alterung eines GM-Elements über einen kraftgeregelten Hydraulikzylinder erzielt.
Dabei wird das Ende der Lebensdauerversuche in einem ersten Schritt über die Wegamplitude
des Zylinders bestimmt. Während dieser Versuche wurden diverse Sensoren eingesetzt.
Die aufgezeichneten Temperaturdaten zeigen, dass sich Temperaturmessungen eignen
die Lebensdauer von GM-Elementen mittels Condition Monitoring Prognosemethoden
zu schätzen.'
author:
- first_name: Amelie
full_name: Bender, Amelie
id: '54290'
last_name: Bender
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Kai
full_name: Reinke, Kai
last_name: Reinke
citation:
ama: 'Bender A, Sextro W, Reinke K. Neuartiges Konzept zur Lebensdauerprognose von
Gummi-Metall-Elementen. In: VDI-Berichte 2301. ; 2017:49-60.'
apa: Bender, A., Sextro, W., & Reinke, K. (2017). Neuartiges Konzept zur Lebensdauerprognose
von Gummi-Metall-Elementen. In VDI-Berichte 2301 (pp. 49–60).
bibtex: '@inproceedings{Bender_Sextro_Reinke_2017, title={Neuartiges Konzept zur
Lebensdauerprognose von Gummi-Metall-Elementen}, booktitle={VDI-Berichte 2301},
author={Bender, Amelie and Sextro, Walter and Reinke, Kai}, year={2017}, pages={49–60}
}'
chicago: Bender, Amelie, Walter Sextro, and Kai Reinke. “Neuartiges Konzept Zur
Lebensdauerprognose von Gummi-Metall-Elementen.” In VDI-Berichte 2301,
49–60, 2017.
ieee: A. Bender, W. Sextro, and K. Reinke, “Neuartiges Konzept zur Lebensdauerprognose
von Gummi-Metall-Elementen,” in VDI-Berichte 2301, 2017, pp. 49–60.
mla: Bender, Amelie, et al. “Neuartiges Konzept Zur Lebensdauerprognose von Gummi-Metall-Elementen.”
VDI-Berichte 2301, 2017, pp. 49–60.
short: 'A. Bender, W. Sextro, K. Reinke, in: VDI-Berichte 2301, 2017, pp. 49–60.'
date_created: 2019-05-27T09:29:37Z
date_updated: 2019-05-27T09:30:41Z
department:
- _id: '151'
language:
- iso: eng
page: 49-60
publication: VDI-Berichte 2301
status: public
title: Neuartiges Konzept zur Lebensdauerprognose von Gummi-Metall-Elementen
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9972'
abstract:
- lang: eng
text: The transportation of dry fine powders is an emerging technologic task, as
in biotechnology, pharmaceu-tical and coatings industry the particle sizes of
processed powders get smaller and smaller. Fine powdersare primarily defined by
the fact that adhesive and cohesive forces outweigh the weight forces, leadingto
mostly unwanted agglomeration (clumping) and adhesion to surfaces. Thereby it
gets more difficult touse conventional conveyor systems (e.g. pneumatic or vibratory
conveyors) for transport. A rather newmethod for transporting these fine powders
is based on ultrasonic vibrations, which are used to reducefriction between powder
and substrate. Within this contribution an experimental set-up consisting of apipe,
a solenoid actuator for axial vibration and an annular piezoelectric actuator
for the high frequencyradial vibration of the pipe is described. Since amplitudes
of the radial pipe vibration should be as large aspossible to get high effects
of friction reduction, the pipe is excited to vibrate in resonance. To determinethe
optimum excitation frequency and actuator position the vibration modes and resonance
frequenciesof the pipe are calculated and measured. Results are in good accordance.
author:
- first_name: Paul
full_name: Dunst, Paul
id: '22130'
last_name: Dunst
- 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: Dunst P, Hemsel T, Sextro W. Analysis of pipe vibration in an ultrasonic powder
transportationsystem. elsevier. 2017;Sensors and Actuators A 263:733-736.
apa: Dunst, P., Hemsel, T., & Sextro, W. (2017). Analysis of pipe vibration
in an ultrasonic powder transportationsystem. Elsevier, Sensors and
Actuators A 263, 733–736.
bibtex: '@article{Dunst_Hemsel_Sextro_2017, title={Analysis of pipe vibration in
an ultrasonic powder transportationsystem}, volume={Sensors and Actuators A 263},
journal={elsevier}, author={Dunst, Paul and Hemsel, Tobias and Sextro, Walter},
year={2017}, pages={733–736} }'
chicago: 'Dunst, Paul, Tobias Hemsel, and Walter Sextro. “Analysis of Pipe Vibration
in an Ultrasonic Powder Transportationsystem.” Elsevier Sensors and Actuators
A 263 (2017): 733–36.'
ieee: P. Dunst, T. Hemsel, and W. Sextro, “Analysis of pipe vibration in an ultrasonic
powder transportationsystem,” elsevier, vol. Sensors and Actuators A 263,
pp. 733–736, 2017.
mla: Dunst, Paul, et al. “Analysis of Pipe Vibration in an Ultrasonic Powder Transportationsystem.”
Elsevier, vol. Sensors and Actuators A 263, 2017, pp. 733–36.
short: P. Dunst, T. Hemsel, W. Sextro, Elsevier Sensors and Actuators A 263 (2017)
733–736.
date_created: 2019-05-27T09:31:13Z
date_updated: 2019-09-16T10:23:40Z
department:
- _id: '151'
keyword:
- Powder transport Piezoelectrics Ultrasonics Pipe vibration Finite element simulation
Fine powder
language:
- iso: eng
page: 733-736
publication: elsevier
quality_controlled: '1'
status: public
title: Analysis of pipe vibration in an ultrasonic powder transportationsystem
type: journal_article
user_id: '55222'
volume: Sensors and Actuators A 263
year: '2017'
...
---
_id: '9973'
abstract:
- lang: eng
text: In power electronics, copper connector pins are e.g. used to connect control
boards with power modules. The new chip generation based on SiC and GaN technology
increase the power density of semiconductor modules significantly with junction
temperatures reaching 200°C. To enable reliable operation at such high temperature,
the soldering of these connector pins should be substituted by a multi-dimensional
copper-copper bonding technology. A copper pin welded directly on DBC substrate
also simplifies the assembly. With this aim, a proper bond tool and a suitable
connector pin geometry are designed. This paper presents a two-dimensional trajectory
approach for ultrasonic bonding of copper pieces, e.g. connector pins, with the
intention to minimize mechanical stresses exposed to the substrate. This is achieved
using a multi-dimensional vibration system with multiple transducers known from
flip chip bonding. Applying a planar relative motion between the bonding piece
and the substrate increases the induced frictional power compared to one-dimensional
excitation. The core of this work is the development of a new tool design which
enables a reliable and effective transmission of the multidimensional vibration
into the contact area between nail-shaped bonding piece and substrate. For this
purpose, different bonding tool as well as bonding piece designs are discussed.
A proper bonding tool design is selected based on the simulated alternatives.
This tool is examined in bonding experiments and the results are presented. In
addition, different grades of hardness for bonding piece and substrate are examined
as well as different bonding parameters. Optical inspection of the bonded area
shows the emergence of initial micro welds in form of a ring which is growing
in direction of the interface boundaries with increasing bonding duration.
author:
- first_name: Paul
full_name: Eichwald, Paul
last_name: Eichwald
- first_name: Simon
full_name: Althoff, Simon
last_name: Althoff
- first_name: Reinhard
full_name: Schemmel, Reinhard
id: '28647'
last_name: Schemmel
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Andreas
full_name: Unger, Andreas
last_name: Unger
- first_name: Michael
full_name: Brökelmann, Michael
last_name: Brökelmann
- first_name: Matthias
full_name: Hunstig, Matthias
last_name: Hunstig
citation:
ama: Eichwald P, Althoff S, Schemmel R, et al. Multi-dimensional Ultrasonic Copper
Bonding – New Challenges for Tool Design. IMAPSource. 2017;Vol. 2017, No.
1.
apa: Eichwald, P., Althoff, S., Schemmel, R., Sextro, W., Unger, A., Brökelmann,
M., & Hunstig, M. (2017). Multi-dimensional Ultrasonic Copper Bonding – New
Challenges for Tool Design. IMAPSource, Vol. 2017, No. 1.
bibtex: '@article{Eichwald_Althoff_Schemmel_Sextro_Unger_Brökelmann_Hunstig_2017,
title={Multi-dimensional Ultrasonic Copper Bonding – New Challenges for Tool Design},
volume={Vol. 2017, No. 1}, journal={IMAPSource}, author={Eichwald, Paul and Althoff,
Simon and Schemmel, Reinhard and Sextro, Walter and Unger, Andreas and Brökelmann,
Michael and Hunstig, Matthias}, year={2017} }'
chicago: Eichwald, Paul, Simon Althoff, Reinhard Schemmel, Walter Sextro, Andreas
Unger, Michael Brökelmann, and Matthias Hunstig. “Multi-Dimensional Ultrasonic
Copper Bonding – New Challenges for Tool Design.” IMAPSource Vol. 2017,
No. 1 (2017).
ieee: P. Eichwald et al., “Multi-dimensional Ultrasonic Copper Bonding –
New Challenges for Tool Design,” IMAPSource, vol. Vol. 2017, No. 1, 2017.
mla: Eichwald, Paul, et al. “Multi-Dimensional Ultrasonic Copper Bonding – New Challenges
for Tool Design.” IMAPSource, vol. Vol. 2017, No. 1, 2017.
short: P. Eichwald, S. Althoff, R. Schemmel, W. Sextro, A. Unger, M. Brökelmann,
M. Hunstig, IMAPSource Vol. 2017, No. 1 (2017).
date_created: 2019-05-27T09:32:42Z
date_updated: 2020-05-07T05:33:54Z
department:
- _id: '151'
keyword:
- International Symposium on Microelectronics
language:
- iso: eng
project:
- _id: '93'
grant_number: MP-1-1-015
name: Hochleistungsbonden in energieeffizienten Leistungshalbleitermodulen
publication: IMAPSource
quality_controlled: '1'
status: public
title: Multi-dimensional Ultrasonic Copper Bonding – New Challenges for Tool Design
type: journal_article
user_id: '210'
volume: Vol. 2017, No. 1
year: '2017'
...
---
_id: '9974'
abstract:
- lang: eng
text: The integrated modeling of behavior and reliability in system development
delivers a model-based approach for reliability investigation by taking into account
the dynamic system behavior as well as the system architecture at different phases
of the development process. This approach features an automated synthesis of a
reliability model out of a behavior model enabling for the closed loop modeling
of degradation of the system and its (dynamic) behavior. The approach is integrated
into the development process following Systems Engineering. It is based on standard
models used in model-based development methodologies i.e. SysML or Matlab/Simulink.
In addition to the theoretical description of the necessary steps the procedure
is validated by an application example at two stages of the development process.
author:
- first_name: Julian
full_name: Hentze, Julian
id: '13342'
last_name: Hentze
- first_name: Thorben
full_name: Kaul, Thorben
id: '14802'
last_name: Kaul
- first_name: Iris
full_name: Grässler, Iris
last_name: Grässler
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Hentze J, Kaul T, Grässler I, Sextro W. Integrated modeling og behavior and
reliability in system development. In: ICED17, 21st International Conference
on Enginieering Design. ; 2017:385-394.'
apa: Hentze, J., Kaul, T., Grässler, I., & Sextro, W. (2017). Integrated modeling
og behavior and reliability in system development. In ICED17, 21st International
conference on enginieering design (pp. 385–394).
bibtex: '@inproceedings{Hentze_Kaul_Grässler_Sextro_2017, title={Integrated modeling
og behavior and reliability in system development}, booktitle={ICED17, 21st International
conference on enginieering design}, author={Hentze, Julian and Kaul, Thorben and
Grässler, Iris and Sextro, Walter}, year={2017}, pages={385–394} }'
chicago: Hentze, Julian, Thorben Kaul, Iris Grässler, and Walter Sextro. “Integrated
Modeling Og Behavior and Reliability in System Development.” In ICED17, 21st
International Conference on Enginieering Design, 385–94, 2017.
ieee: J. Hentze, T. Kaul, I. Grässler, and W. Sextro, “Integrated modeling og behavior
and reliability in system development,” in ICED17, 21st International conference
on enginieering design, 2017, pp. 385–394.
mla: Hentze, Julian, et al. “Integrated Modeling Og Behavior and Reliability in
System Development.” ICED17, 21st International Conference on Enginieering
Design, 2017, pp. 385–94.
short: 'J. Hentze, T. Kaul, I. Grässler, W. Sextro, in: ICED17, 21st International
Conference on Enginieering Design, 2017, pp. 385–394.'
date_created: 2019-05-27T09:35:48Z
date_updated: 2019-09-30T08:04:38Z
department:
- _id: '151'
keyword:
- Design for X (DfX)
- Product modelling / models
- Robust design
- Systems Engineering (SE)
- Reliability
language:
- iso: eng
page: 385-394
publication: ICED17, 21st International conference on enginieering design
quality_controlled: '1'
status: public
title: Integrated modeling og behavior and reliability in system development
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9975'
abstract:
- lang: eng
text: Piezoelectric inertia motors also known as stick-slip motors or (smooth) impact
drives use the inertia of a body to drive it in small steps by means of an uninterrupted
friction contact. In addition to the typical advantages of piezoelectric motors,
they are especially suited for miniaturisation due to their simple structure and
inherent fine-positioning capability. Originally developed for positioning in
microscopy in the 1980s, they have nowadays also found application in mass-produced
consumer goods. Recent research results are likely to enable more applications
of piezoelectric inertia motors in the future. This contribution gives a critical
overview of their historical development, functional principles, and related terminology.
The most relevant aspects regarding their design i.e., friction contact, solid
state actuator, and electrical excitation are discussed, including aspects of
control and simulation. The article closes with an outlook on possible future
developments and research perspectives.
author:
- first_name: Matthias
full_name: Hunstig, Matthias
last_name: Hunstig
citation:
ama: Hunstig M. Piezoelectric Inertia Motors—A Critical Review of History, Concepts,
Design, Applications, and Perspectives. Actuators 2017, 6(1)-7. 2017:1-35.
doi:10.3390/act6010007
apa: Hunstig, M. (2017). Piezoelectric Inertia Motors—A Critical Review of History,
Concepts, Design, Applications, and Perspectives. Actuators. 2017, 6(1)-7.,
1–35. https://doi.org/10.3390/act6010007
bibtex: '@article{Hunstig_2017, title={Piezoelectric Inertia Motors—A Critical Review
of History, Concepts, Design, Applications, and Perspectives.}, DOI={10.3390/act6010007},
journal={Actuators. 2017, 6(1)-7.}, author={Hunstig, Matthias}, year={2017}, pages={1–35}
}'
chicago: Hunstig, Matthias. “Piezoelectric Inertia Motors—A Critical Review of History,
Concepts, Design, Applications, and Perspectives.” Actuators. 2017, 6(1)-7.,
2017, 1–35. https://doi.org/10.3390/act6010007.
ieee: M. Hunstig, “Piezoelectric Inertia Motors—A Critical Review of History, Concepts,
Design, Applications, and Perspectives.,” Actuators. 2017, 6(1)-7., pp.
1–35, 2017.
mla: Hunstig, Matthias. “Piezoelectric Inertia Motors—A Critical Review of History,
Concepts, Design, Applications, and Perspectives.” Actuators. 2017, 6(1)-7.,
2017, pp. 1–35, doi:10.3390/act6010007.
short: M. Hunstig, Actuators. 2017, 6(1)-7. (2017) 1–35.
date_created: 2019-05-27T09:36:55Z
date_updated: 2019-09-16T09:57:39Z
department:
- _id: '151'
doi: 10.3390/act6010007
language:
- iso: eng
page: 1-35
publication: Actuators. 2017, 6(1)-7.
quality_controlled: '1'
status: public
title: Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design,
Applications, and Perspectives.
type: journal_article
user_id: '55222'
year: '2017'
...
---
_id: '9976'
abstract:
- lang: eng
text: State-of-the-art mechatronic systems offer inherent intelligence that enables
them to autonomously adapt their behavior to current environmental conditions
and to their own system state. This autonomous behavior adaptation is made possible
by software in combination with complex sensor and actuator systems and by sophisticated
information processing, all of which make these systems increasingly complex.
This increasing complexity makes the design process a challenging task and brings
new complex possibilities for operation and maintenance. However, with the risk
of increased system complexity also comes the chance to adapt system behavior
based on current reliability, which in turn increases reliability. The development
of such an adaption strategy requires appropriate methods to evaluate reliability
based on currently selected system behavior. A common approach to implement such
adaptivity is to base system behavior on different working points that are obtained
using multiobjective optimization. During operation, selection among these allows
a changed operating strategy. To allow for multiobjective optimization, an accurate
system model including system reliability is required. This model is repeatedly
evaluated by the optimization algorithm. At present, modeling of system reliability
and synchronization of the models of behavior and reliability is a laborious manual
task and thus very error-prone. Since system behavior is crucial for system reliability,
an integrated model is introduced that integrates system behavior and system reliability.
The proposed approach is used to formulate reliability-related objective functions
for a clutch test rig that are used to compute feasible working points using multiobjective
optimization.
author:
- first_name: Thorben
full_name: Kaul, Thorben
id: '14802'
last_name: Kaul
- first_name: Tobias
full_name: Meyer, Tobias
last_name: Meyer
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Kaul T, Meyer T, Sextro W. Formulation of reliability-related objective functions
for design of intelligent mechatronic systems. SAGE Journals. 2017;Vol.
231(4):390-399. doi:10.1177/1748006X17709376
apa: Kaul, T., Meyer, T., & Sextro, W. (2017). Formulation of reliability-related
objective functions for design of intelligent mechatronic systems. SAGE Journals,
Vol. 231(4), 390–399. https://doi.org/10.1177/1748006X17709376
bibtex: '@article{Kaul_Meyer_Sextro_2017, title={Formulation of reliability-related
objective functions for design of intelligent mechatronic systems}, volume={Vol.
231(4)}, DOI={10.1177/1748006X17709376},
journal={SAGE Journals}, author={Kaul, Thorben and Meyer, Tobias and Sextro, Walter},
year={2017}, pages={390–399} }'
chicago: 'Kaul, Thorben, Tobias Meyer, and Walter Sextro. “Formulation of Reliability-Related
Objective Functions for Design of Intelligent Mechatronic Systems.” SAGE Journals
Vol. 231(4) (2017): 390–99. https://doi.org/10.1177/1748006X17709376.'
ieee: T. Kaul, T. Meyer, and W. Sextro, “Formulation of reliability-related objective
functions for design of intelligent mechatronic systems,” SAGE Journals,
vol. Vol. 231(4), pp. 390–399, 2017.
mla: Kaul, Thorben, et al. “Formulation of Reliability-Related Objective Functions
for Design of Intelligent Mechatronic Systems.” SAGE Journals, vol. Vol.
231(4), 2017, pp. 390–99, doi:10.1177/1748006X17709376.
short: T. Kaul, T. Meyer, W. Sextro, SAGE Journals Vol. 231(4) (2017) 390–399.
date_created: 2019-05-27T09:37:46Z
date_updated: 2019-09-16T10:20:49Z
department:
- _id: '151'
doi: 10.1177/1748006X17709376
keyword:
- Integrated model
- reliability
- system behavior
- Bayesian network
- multiobjective optimization
language:
- iso: eng
page: 390 - 399
publication: SAGE Journals
quality_controlled: '1'
status: public
title: Formulation of reliability-related objective functions for design of intelligent
mechatronic systems
type: journal_article
user_id: '55222'
volume: Vol. 231(4)
year: '2017'
...
---
_id: '9978'
abstract:
- lang: eng
text: Piezoelectric transducers are used in a wide range of applications. Reliability
of these transducers is an important aspect in their application. Prognostics,
which involve continuous monitoring of the health of technical systems and using
this information to estimate the current health state and consequently predict
the remaining useful lifetime (RUL), can be used to increase the reliability,
safety, and availability of the transducers. This is achieved by utilizing the
health state and RUL predictions to adaptively control the usage of the components
or to schedule appropriate maintenance without interrupting operation. In this
work, a prognostic approach utilizing self-sensing, where electric signals of
a piezoelectric transducer are used as the condition monitoring data, is proposed.
The approach involves training machine learning algorithms to model the degradation
of the transducers through a health index and the use of the learned model to
estimate the health index of similar transducers. The current health index is
then used to estimate RUL of test components. The feasibility of the approach
is demonstrated using piezoelectric bimorphs and the results show that the method
is accurate in predicting the health index and RUL.
author:
- first_name: James Kuria
full_name: Kimotho, James Kuria
last_name: Kimotho
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
citation:
ama: 'Kimotho JK, Sextro W, Hemsel T. Estimation of Remaining Useful Lifetime of
Piezoelectric Transducers Based on Self-Sensing. In: IEEE Transactions on Reliability.
; 2017:1-10. doi:10.1109/TR.2017.2710260'
apa: Kimotho, J. K., Sextro, W., & Hemsel, T. (2017). Estimation of Remaining
Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing. In IEEE
Transactions on Reliability (pp. 1–10). https://doi.org/10.1109/TR.2017.2710260
bibtex: '@inproceedings{Kimotho_Sextro_Hemsel_2017, title={Estimation of Remaining
Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing}, DOI={10.1109/TR.2017.2710260},
booktitle={IEEE Transactions on Reliability}, author={Kimotho, James Kuria and
Sextro, Walter and Hemsel, Tobias}, year={2017}, pages={1–10} }'
chicago: Kimotho, James Kuria, Walter Sextro, and Tobias Hemsel. “Estimation of
Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing.”
In IEEE Transactions on Reliability, 1–10, 2017. https://doi.org/10.1109/TR.2017.2710260.
ieee: J. K. Kimotho, W. Sextro, and T. Hemsel, “Estimation of Remaining Useful Lifetime
of Piezoelectric Transducers Based on Self-Sensing,” in IEEE Transactions on
Reliability, 2017, pp. 1–10.
mla: Kimotho, James Kuria, et al. “Estimation of Remaining Useful Lifetime of Piezoelectric
Transducers Based on Self-Sensing.” IEEE Transactions on Reliability, 2017,
pp. 1–10, doi:10.1109/TR.2017.2710260.
short: 'J.K. Kimotho, W. Sextro, T. Hemsel, in: IEEE Transactions on Reliability,
2017, pp. 1–10.'
date_created: 2019-05-27T09:41:06Z
date_updated: 2019-09-16T10:32:05Z
department:
- _id: '151'
doi: 10.1109/TR.2017.2710260
keyword:
- Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based on Self-Sensing
language:
- iso: eng
page: 1 - 10
publication: IEEE Transactions on Reliability
quality_controlled: '1'
status: public
title: Estimation of Remaining Useful Lifetime of Piezoelectric Transducers Based
on Self-Sensing
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9982'
abstract:
- lang: ger
text: ln der industriellen Fertigung werden zum Transport von Bauteilen häufig Förderketten
genutzt. Obwohl die Förderketten meist nicht direkt mit den Arbeitsmedien in Berührung
kommen, werden sie indirekt durch vagabundierende Stäube und Pulver, die an der
geölten Kette anhaften, im Laufe der Zeit stark verschmutzt. Ein derart im Betrieb
verschmutztes Kettenglied ist in Abbildung 1 dargestellt. Um die Lebensdauer der
Ketten zu erhöhen und das Herunterfallen von Schmutzpartikel auf die Produkte
zu vermeiden, muss die Kette regelmäßig gereinigt werden. Ziel des hier beschriebenen
Forschungsvorhabens ist die Entwicklung eines Systems, das in der Lage ist, ein
einzelnes Kettenglied in unter 60 s mittels Ultraschall zu reinigen. In [1] wurde
in ersten Versuchen nachgewiesen, dass Stabschwinger in Abhängigkeit des Sonotrodenabstands
zum Reinigungsobjekt und der Ultraschallamplitude eine intensive Reinigungswirkung
entfalten. Das Konzept der Reinigungsanlage sieht deshalb vor, im ersten Schritt
die stark verschmutzten Kettenglieder durch ein hochintensives Kavitationsfeld
von direkt eingetauchten Stabschwingern vorzureinigen und anschließend schwer
zugängliche Be- reiche wie Hinterschneidungen oder Bohrungen mittels konventioneller
Tauchschwinger von Verschmutzungen zu befreien. Für den Stabschwinger wird die
sogenannte - Sonotrode untersucht; diese wird unter anderem auch in der Sonochemie
verwendet. Ein wesentliches Merkmal der Sonotrode ist eine hohe Amplitudenübersetzung
bei einer gleichzeitig großen Abstrahlfläche. Neben dem Entwurf mittels der L
/2 -Synthese wird die Reinigungswirkung der Sonotrode in Abhängigkeit der Ultraschallamplitude
und dem Abstand zum Reinigungsobjekt in einer Versuchsreihe untersucht. Zur genaueren
Betrachtung der Reinigungs- mechanismen eines Stabschwingers werden abschließend
Hochgeschwindigkeitsaufnahmen vorgestellt und analysieren.
author:
- first_name: Reinhard
full_name: Schemmel, Reinhard
id: '28647'
last_name: Schemmel
- 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: 'Schemmel R, Hemsel T, Sextro W. MoRFUS: Mobile Reinigungseinheit für Förderketten
basierend auf Ultraschall. In: 43. Deutsche Jahrestagung Für Akustik. Kiel
2017; 2017:611-614.'
apa: 'Schemmel, R., Hemsel, T., & Sextro, W. (2017). MoRFUS: Mobile Reinigungseinheit
für Förderketten basierend auf Ultraschall. In 43. Deutsche Jahrestagung für
Akustik (pp. 611–614). Kiel 2017.'
bibtex: '@inproceedings{Schemmel_Hemsel_Sextro_2017, place={Kiel 2017}, title={MoRFUS:
Mobile Reinigungseinheit für Förderketten basierend auf Ultraschall}, booktitle={43.
Deutsche Jahrestagung für Akustik}, author={Schemmel, Reinhard and Hemsel, Tobias
and Sextro, Walter}, year={2017}, pages={611–614} }'
chicago: 'Schemmel, Reinhard, Tobias Hemsel, and Walter Sextro. “MoRFUS: Mobile
Reinigungseinheit Für Förderketten Basierend Auf Ultraschall.” In 43. Deutsche
Jahrestagung Für Akustik, 611–14. Kiel 2017, 2017.'
ieee: 'R. Schemmel, T. Hemsel, and W. Sextro, “MoRFUS: Mobile Reinigungseinheit
für Förderketten basierend auf Ultraschall,” in 43. Deutsche Jahrestagung für
Akustik, 2017, pp. 611–614.'
mla: 'Schemmel, Reinhard, et al. “MoRFUS: Mobile Reinigungseinheit Für Förderketten
Basierend Auf Ultraschall.” 43. Deutsche Jahrestagung Für Akustik, 2017,
pp. 611–14.'
short: 'R. Schemmel, T. Hemsel, W. Sextro, in: 43. Deutsche Jahrestagung Für Akustik,
Kiel 2017, 2017, pp. 611–614.'
date_created: 2019-05-27T09:48:10Z
date_updated: 2019-05-27T09:49:49Z
department:
- _id: '151'
keyword:
- wire bonding
- dynamic behavior
- modeling
language:
- iso: eng
page: 611-614
place: Kiel 2017
publication: 43. Deutsche Jahrestagung für Akustik
status: public
title: 'MoRFUS: Mobile Reinigungseinheit für Förderketten basierend auf Ultraschall'
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9983'
author:
- first_name: Sebastian
full_name: Schulze, Sebastian
last_name: Schulze
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: K.
full_name: Kister, K.
last_name: Kister
citation:
ama: 'Schulze S, Sextro W, Kister K. Model based optimization of dynamics in adaptive
headlamps. In: Proceedings of the 12th International Symposium on Automotive
Lighting 2017. ; 2017.'
apa: Schulze, S., Sextro, W., & Kister, K. (2017). Model based optimization
of dynamics in adaptive headlamps. In Proceedings of the 12th International
Symposium on Automotive Lighting 2017.
bibtex: '@inproceedings{Schulze_Sextro_Kister_2017, title={Model based optimization
of dynamics in adaptive headlamps}, booktitle={Proceedings of the 12th International
Symposium on Automotive Lighting 2017}, author={Schulze, Sebastian and Sextro,
Walter and Kister, K.}, year={2017} }'
chicago: Schulze, Sebastian, Walter Sextro, and K. Kister. “Model Based Optimization
of Dynamics in Adaptive Headlamps.” In Proceedings of the 12th International
Symposium on Automotive Lighting 2017, 2017.
ieee: S. Schulze, W. Sextro, and K. Kister, “Model based optimization of dynamics
in adaptive headlamps,” in Proceedings of the 12th International Symposium
on Automotive Lighting 2017, 2017.
mla: Schulze, Sebastian, et al. “Model Based Optimization of Dynamics in Adaptive
Headlamps.” Proceedings of the 12th International Symposium on Automotive Lighting
2017, 2017.
short: 'S. Schulze, W. Sextro, K. Kister, in: Proceedings of the 12th International
Symposium on Automotive Lighting 2017, 2017.'
date_created: 2019-05-27T09:50:09Z
date_updated: 2019-05-27T09:52:17Z
department:
- _id: '151'
language:
- iso: eng
publication: Proceedings of the 12th International Symposium on Automotive Lighting
2017
status: public
title: Model based optimization of dynamics in adaptive headlamps
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9985'
abstract:
- lang: ger
text: Intelligente technische Systeme sind durch einen erhöhten Funktionsumfang
charakterisiert, der diese dazu befähigt, autonom auf wechselnde Umgebungsbedingungen,
Anforderungen und inhärente Systemzustände zu reagieren. Dies kann mit den Methoden
der Selbstoptimie-rung erreicht werden. Hier werden mit Verfahren der Mehrzieloptimierung
mögliche Betriebs-punkte des Systems bestimmt zwischen denen das System im Betrieb
autonom auswählt und somit eine Verhaltensadaption erwirkt. Zur Berechnung der
Betriebspunkte ist es notwendig ein Modell des Systemverhaltens aufzustellen und
das Verhalten hinsichtlich verschiedener, meist konfliktärer, Ziele zu quantifizieren.
Bei der Modellierung des Systemverhaltens und der Formulierung der Ziele stellt
die Absiche-rung der Verlässlichkeit auf Grund der zunehmenden Systemkomplexität
eine große Heraus-forderung dar, der im Entwicklungsprozess begegnet werden muss.
Die Implementierung von Selbstoptimierung bietet darüber hinaus in Kombination
mit einer Zustandsüberwachung im Betrieb die Möglichkeit einer zuverlässigkeitsbasierten
Verhaltensanpassung, deren Potential zu einer Steigerung der Verlässlichkeit genutzt
werden kann. In dieser Arbeit werden die Entwicklung intelligenter technischer
Systeme und die damit ver-bundenen notwendigen Entwicklungsschritte zur Absicherung
der Verlässlichkeit anhand von selbstoptimierenden Systemen betrachtet. Dazu gehören
die Formulierung verlässlichkeitsre-levanter Ziele und die Implementierung einer
Zustandsüberwachung als Basis für eine zuver-lässigkeitsbasierte Verhaltensanpassung.
Es werden auf Grundlage einer Beschreibung der Entwicklungsschritte, Potentiale
zur Steigerung der Verlässlichkeit sowie Chancen und zukünf-tige Herausforderungen
herausgestellt und diskutiert.
author:
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Tobias
full_name: Meyer, Tobias
last_name: Meyer
- first_name: Thorben
full_name: Kaul, Thorben
id: '14802'
last_name: Kaul
- first_name: James Kuria
full_name: Kimotho, James Kuria
last_name: Kimotho
citation:
ama: 'Sextro W, Meyer T, Kaul T, Kimotho JK. Entwicklung verlässlicher, intelligenter
Systeme. In: VDI-Berichte 2307–28. Tagung Technische Zuverlässigkeit (TTZ 2017)
- Entwicklung Und Betrieb Zuverlässiger Produkte. Leonberg; 2017:17–30.'
apa: Sextro, W., Meyer, T., Kaul, T., & Kimotho, J. K. (2017). Entwicklung verlässlicher,
intelligenter Systeme. In VDI-Berichte 2307–28. Tagung Technische Zuverlässigkeit
(TTZ 2017) - Entwicklung und Betrieb zuverlässiger Produkte. (pp. 17–30).
Leonberg.
bibtex: '@inproceedings{Sextro_Meyer_Kaul_Kimotho_2017, place={Leonberg}, title={Entwicklung
verlässlicher, intelligenter Systeme}, booktitle={VDI-Berichte 2307–28. Tagung
Technische Zuverlässigkeit (TTZ 2017) - Entwicklung und Betrieb zuverlässiger
Produkte.}, author={Sextro, Walter and Meyer, Tobias and Kaul, Thorben and Kimotho,
James Kuria}, year={2017}, pages={17–30} }'
chicago: Sextro, Walter, Tobias Meyer, Thorben Kaul, and James Kuria Kimotho. “Entwicklung
Verlässlicher, Intelligenter Systeme.” In VDI-Berichte 2307–28. Tagung Technische
Zuverlässigkeit (TTZ 2017) - Entwicklung Und Betrieb Zuverlässiger Produkte.,
17–30. Leonberg, 2017.
ieee: W. Sextro, T. Meyer, T. Kaul, and J. K. Kimotho, “Entwicklung verlässlicher,
intelligenter Systeme,” in VDI-Berichte 2307–28. Tagung Technische Zuverlässigkeit
(TTZ 2017) - Entwicklung und Betrieb zuverlässiger Produkte., 2017, pp. 17–30.
mla: Sextro, Walter, et al. “Entwicklung Verlässlicher, Intelligenter Systeme.”
VDI-Berichte 2307–28. Tagung Technische Zuverlässigkeit (TTZ 2017) - Entwicklung
Und Betrieb Zuverlässiger Produkte., 2017, pp. 17–30.
short: 'W. Sextro, T. Meyer, T. Kaul, J.K. Kimotho, in: VDI-Berichte 2307–28. Tagung
Technische Zuverlässigkeit (TTZ 2017) - Entwicklung Und Betrieb Zuverlässiger
Produkte., Leonberg, 2017, pp. 17–30.'
date_created: 2019-05-27T09:52:37Z
date_updated: 2019-09-30T09:03:57Z
department:
- _id: '151'
keyword:
- intelligente Systeme
language:
- iso: eng
page: 17–30
place: Leonberg
publication: VDI-Berichte 2307–28. Tagung Technische Zuverlässigkeit (TTZ 2017) -
Entwicklung und Betrieb zuverlässiger Produkte.
quality_controlled: '1'
status: public
title: Entwicklung verlässlicher, intelligenter Systeme
type: conference
user_id: '55222'
year: '2017'
...
---
_id: '9988'
author:
- first_name: Martin
full_name: Düsing, Martin
last_name: Düsing
- first_name: Rolf
full_name: Mahnken, Rolf
last_name: Mahnken
citation:
ama: Düsing M, Mahnken R. “A coupled phase field/diffusion model for upper and lower
bainitic transformation.” International Journal of Solids and Structures.
2017:172-183. doi:10.1016/j.ijsolstr.2017.11.018
apa: Düsing, M., & Mahnken, R. (2017). “A coupled phase field/diffusion model
for upper and lower bainitic transformation.” International Journal of Solids
and Structures, 172–183. https://doi.org/10.1016/j.ijsolstr.2017.11.018
bibtex: '@article{Düsing_Mahnken_2017, title={“A coupled phase field/diffusion model
for upper and lower bainitic transformation”}, DOI={10.1016/j.ijsolstr.2017.11.018},
journal={International Journal of Solids and Structures}, author={Düsing, Martin
and Mahnken, Rolf}, year={2017}, pages={172–183} }'
chicago: Düsing, Martin, and Rolf Mahnken. “‘A Coupled Phase Field/Diffusion Model
for Upper and Lower Bainitic Transformation.’” International Journal of Solids
and Structures, 2017, 172–83. https://doi.org/10.1016/j.ijsolstr.2017.11.018.
ieee: M. Düsing and R. Mahnken, “‘A coupled phase field/diffusion model for upper
and lower bainitic transformation,’” International Journal of Solids and Structures,
pp. 172–183, 2017.
mla: Düsing, Martin, and Rolf Mahnken. “‘A Coupled Phase Field/Diffusion Model for
Upper and Lower Bainitic Transformation.’” International Journal of Solids
and Structures, 2017, pp. 172–83, doi:10.1016/j.ijsolstr.2017.11.018.
short: M. Düsing, R. Mahnken, International Journal of Solids and Structures (2017)
172–183.
date_created: 2019-05-27T10:04:12Z
date_updated: 2019-05-27T10:51:04Z
department:
- _id: '154'
doi: 10.1016/j.ijsolstr.2017.11.018
language:
- iso: eng
page: 172-183
publication: International Journal of Solids and Structures
publication_identifier:
issn:
- 0020-7683
publication_status: published
status: public
title: '"A coupled phase field/diffusion model for upper and lower bainitic transformation"'
type: journal_article
user_id: '78813'
year: '2017'
...
---
_id: '9989'
author:
- first_name: X.
full_name: Ju, X.
last_name: Ju
- first_name: R.
full_name: Mahnken, R.
last_name: Mahnken
citation:
ama: Ju X, Mahnken R. “Goal-oriented adaptivity for linear elastic micromorphic
continua based on primal and adjoint consistency analysis.” International Journal
for Numerical Methods in Engineering. 2017:1017-1039. doi:10.1002/nme.5541
apa: Ju, X., & Mahnken, R. (2017). “Goal-oriented adaptivity for linear elastic
micromorphic continua based on primal and adjoint consistency analysis.” International
Journal for Numerical Methods in Engineering, 1017–1039. https://doi.org/10.1002/nme.5541
bibtex: '@article{Ju_Mahnken_2017, title={“Goal-oriented adaptivity for linear elastic
micromorphic continua based on primal and adjoint consistency analysis”}, DOI={10.1002/nme.5541}, journal={International
Journal for Numerical Methods in Engineering}, author={Ju, X. and Mahnken, R.},
year={2017}, pages={1017–1039} }'
chicago: Ju, X., and R. Mahnken. “‘Goal-Oriented Adaptivity for Linear Elastic Micromorphic
Continua Based on Primal and Adjoint Consistency Analysis.’” International
Journal for Numerical Methods in Engineering, 2017, 1017–39. https://doi.org/10.1002/nme.5541.
ieee: X. Ju and R. Mahnken, “‘Goal-oriented adaptivity for linear elastic micromorphic
continua based on primal and adjoint consistency analysis,’” International
Journal for Numerical Methods in Engineering, pp. 1017–1039, 2017.
mla: Ju, X., and R. Mahnken. “‘Goal-Oriented Adaptivity for Linear Elastic Micromorphic
Continua Based on Primal and Adjoint Consistency Analysis.’” International
Journal for Numerical Methods in Engineering, 2017, pp. 1017–39, doi:10.1002/nme.5541.
short: X. Ju, R. Mahnken, International Journal for Numerical Methods in Engineering
(2017) 1017–1039.
date_created: 2019-05-27T10:08:39Z
date_updated: 2019-05-27T10:50:56Z
department:
- _id: '154'
doi: 10.1002/nme.5541
language:
- iso: eng
page: 1017-1039
publication: International Journal for Numerical Methods in Engineering
publication_identifier:
issn:
- 0029-5981
publication_status: published
status: public
title: '"Goal-oriented adaptivity for linear elastic micromorphic continua based on
primal and adjoint consistency analysis"'
type: journal_article
user_id: '78813'
year: '2017'
...
---
_id: '3950'
abstract:
- lang: eng
text: "In the last decade, zinc blende structure III–V semiconductors have been
increasingly utilized for the realization of high‐performance optoelectronic applications
because of their tunable bandgaps, high carrier mobility and the absence of piezoelectric
fields. However, the integration of III–V devices on the Si platform commonly
used for CMOS electronic \r\ncircuits still poses a challenge, due to the large
densities of mismatch‐related defects in heteroepitaxial III–V layers grown on
planar Si substrates. A promising method to obtain thin III–V layers of high crystalline
quality is the growth on nanopatterned substrates. In this approach, defects can
be effectively eliminated by elastic lattice relaxation in three \r\ndimensions
or confined close to the substrate interface by using aspect‐ratio trapping masks.
As a result, an etch pit density as low as 3.3 × 10^5 cm^−2 and a flat surface
of submicron GaAs layers have been accomplished by growth onto a SiO2 nanohole
film patterned Si(001) substrate, where the threading defects are trapped at the
SiO2 mask sidewalls. An open issue that remains to be resolved is to gain a better
understanding of the interplay between mask shape, growth conditions and formation
of coalescence defects during mask overgrowth in order to achieve thin device
quality III–V layers"
author:
- first_name: Thomas
full_name: Riedl, Thomas
id: '36950'
last_name: Riedl
- first_name: Jörg
full_name: Lindner, Jörg
id: '20797'
last_name: Lindner
citation:
ama: 'Riedl T, Lindner J. Heteroepitaxy of III–V Zinc Blende Semiconductors on Nanopatterned
Substrates. In: Nanai L, ed. Nanoscaled Films and Layers. InTech; 2017.
doi:10.5772/67572'
apa: Riedl, T., & Lindner, J. (2017). Heteroepitaxy of III–V Zinc Blende Semiconductors
on Nanopatterned Substrates. In L. Nanai (Ed.), Nanoscaled Films and Layers.
InTech. https://doi.org/10.5772/67572
bibtex: '@inbook{Riedl_Lindner_2017, title={Heteroepitaxy of III–V Zinc Blende Semiconductors
on Nanopatterned Substrates}, DOI={10.5772/67572},
booktitle={Nanoscaled Films and Layers}, publisher={InTech}, author={Riedl, Thomas
and Lindner, Jörg}, editor={Nanai, L.Editor}, year={2017} }'
chicago: Riedl, Thomas, and Jörg Lindner. “Heteroepitaxy of III–V Zinc Blende Semiconductors
on Nanopatterned Substrates.” In Nanoscaled Films and Layers, edited by
L. Nanai. InTech, 2017. https://doi.org/10.5772/67572.
ieee: T. Riedl and J. Lindner, “Heteroepitaxy of III–V Zinc Blende Semiconductors
on Nanopatterned Substrates,” in Nanoscaled Films and Layers, L. Nanai,
Ed. InTech, 2017.
mla: Riedl, Thomas, and Jörg Lindner. “Heteroepitaxy of III–V Zinc Blende Semiconductors
on Nanopatterned Substrates.” Nanoscaled Films and Layers, edited by L.
Nanai, InTech, 2017, doi:10.5772/67572.
short: 'T. Riedl, J. Lindner, in: L. Nanai (Ed.), Nanoscaled Films and Layers, InTech,
2017.'
date_created: 2018-08-20T13:09:20Z
date_updated: 2022-01-06T06:59:59Z
department:
- _id: '286'
- _id: '15'
doi: 10.5772/67572
editor:
- first_name: L.
full_name: Nanai, L.
last_name: Nanai
language:
- iso: eng
publication: Nanoscaled Films and Layers
publication_identifier:
isbn:
- '9789535131434'
- '9789535131441'
publication_status: published
publisher: InTech
status: public
title: Heteroepitaxy of III–V Zinc Blende Semiconductors on Nanopatterned Substrates
type: book_chapter
user_id: '55706'
year: '2017'
...
---
_id: '3951'
author:
- first_name: Katharina
full_name: Brassat, Katharina
id: '11305'
last_name: Brassat
- first_name: Jörg
full_name: Lindner, Jörg
id: '20797'
last_name: Lindner
citation:
ama: 'Brassat K, Lindner J. Joining self-assembly techniques: A route to hierarchical
nanopores. In: ; 2017.'
apa: 'Brassat, K., & Lindner, J. (2017). Joining self-assembly techniques: A
route to hierarchical nanopores. Presented at the Europhotonics Spring School
2017, Barcelona (Spain).'
bibtex: '@inproceedings{Brassat_Lindner_2017, title={Joining self-assembly techniques:
A route to hierarchical nanopores}, author={Brassat, Katharina and Lindner, Jörg},
year={2017} }'
chicago: 'Brassat, Katharina, and Jörg Lindner. “Joining Self-Assembly Techniques:
A Route to Hierarchical Nanopores,” 2017.'
ieee: 'K. Brassat and J. Lindner, “Joining self-assembly techniques: A route to
hierarchical nanopores,” presented at the Europhotonics Spring School 2017, Barcelona
(Spain), 2017.'
mla: 'Brassat, Katharina, and Jörg Lindner. Joining Self-Assembly Techniques:
A Route to Hierarchical Nanopores. 2017.'
short: 'K. Brassat, J. Lindner, in: 2017.'
conference:
end_date: 2017-03-24
location: Barcelona (Spain)
name: Europhotonics Spring School 2017
start_date: 2017-03-21
date_created: 2018-08-20T13:17:16Z
date_updated: 2022-01-06T06:59:59Z
department:
- _id: '286'
- _id: '15'
status: public
title: 'Joining self-assembly techniques: A route to hierarchical nanopores'
type: conference
user_id: '55706'
year: '2017'
...
---
_id: '3952'
author:
- first_name: Katharina
full_name: Brassat, Katharina
id: '11305'
last_name: Brassat
- first_name: Daniel
full_name: Kool, Daniel
id: '44586'
last_name: Kool
- first_name: Julius
full_name: Bürger, Julius
id: '46952'
last_name: Bürger
- first_name: Jörg
full_name: Lindner, Jörg
id: '20797'
last_name: Lindner
citation:
ama: 'Brassat K, Kool D, Bürger J, Lindner J. Micro- and nanopatterned surfaces
with tailored chemical and topographical contrast by self-assembly techniques.
In: ; 2017.'
apa: Brassat, K., Kool, D., Bürger, J., & Lindner, J. (2017). Micro- and nanopatterned
surfaces with tailored chemical and topographical contrast by self-assembly techniques.
Presented at the E-MRS Fall Meeting 2017, Warsaw (Poland).
bibtex: '@inproceedings{Brassat_Kool_Bürger_Lindner_2017, title={Micro- and nanopatterned
surfaces with tailored chemical and topographical contrast by self-assembly techniques},
author={Brassat, Katharina and Kool, Daniel and Bürger, Julius and Lindner, Jörg},
year={2017} }'
chicago: Brassat, Katharina, Daniel Kool, Julius Bürger, and Jörg Lindner. “Micro-
and Nanopatterned Surfaces with Tailored Chemical and Topographical Contrast by
Self-Assembly Techniques,” 2017.
ieee: K. Brassat, D. Kool, J. Bürger, and J. Lindner, “Micro- and nanopatterned
surfaces with tailored chemical and topographical contrast by self-assembly techniques,”
presented at the E-MRS Fall Meeting 2017, Warsaw (Poland), 2017.
mla: Brassat, Katharina, et al. Micro- and Nanopatterned Surfaces with Tailored
Chemical and Topographical Contrast by Self-Assembly Techniques. 2017.
short: 'K. Brassat, D. Kool, J. Bürger, J. Lindner, in: 2017.'
conference:
end_date: 2017-09-21
location: Warsaw (Poland)
name: E-MRS Fall Meeting 2017
start_date: 2017-09-18
date_created: 2018-08-20T13:24:15Z
date_updated: 2022-01-06T06:59:59Z
department:
- _id: '286'
- _id: '15'
status: public
title: Micro- and nanopatterned surfaces with tailored chemical and topographical
contrast by self-assembly techniques
type: conference
user_id: '55706'
year: '2017'
...
---
_id: '3953'
author:
- first_name: Katharina
full_name: Brassat, Katharina
id: '11305'
last_name: Brassat
- first_name: A.
full_name: Keller, A.
last_name: Keller
- first_name: G.
full_name: Grundmeier, G.
last_name: Grundmeier
- first_name: W.
full_name: Bremser, W.
last_name: Bremser
- first_name: O.
full_name: Strube, O.
last_name: Strube
- first_name: Jörg
full_name: Lindner, Jörg
id: '20797'
last_name: Lindner
citation:
ama: 'Brassat K, Keller A, Grundmeier G, Bremser W, Strube O, Lindner J. Tailored
antidot patterns created by nanosphere lithography for bioapplications. In: ;
2017.'
apa: Brassat, K., Keller, A., Grundmeier, G., Bremser, W., Strube, O., & Lindner,
J. (2017). Tailored antidot patterns created by nanosphere lithography for bioapplications.
Presented at the E-MRS Spring Meeting 2017, Straßburg (France).
bibtex: '@inproceedings{Brassat_Keller_Grundmeier_Bremser_Strube_Lindner_2017, title={Tailored
antidot patterns created by nanosphere lithography for bioapplications}, author={Brassat,
Katharina and Keller, A. and Grundmeier, G. and Bremser, W. and Strube, O. and
Lindner, Jörg}, year={2017} }'
chicago: Brassat, Katharina, A. Keller, G. Grundmeier, W. Bremser, O. Strube, and
Jörg Lindner. “Tailored Antidot Patterns Created by Nanosphere Lithography for
Bioapplications,” 2017.
ieee: K. Brassat, A. Keller, G. Grundmeier, W. Bremser, O. Strube, and J. Lindner,
“Tailored antidot patterns created by nanosphere lithography for bioapplications,”
presented at the E-MRS Spring Meeting 2017, Straßburg (France), 2017.
mla: Brassat, Katharina, et al. Tailored Antidot Patterns Created by Nanosphere
Lithography for Bioapplications. 2017.
short: 'K. Brassat, A. Keller, G. Grundmeier, W. Bremser, O. Strube, J. Lindner,
in: 2017.'
conference:
end_date: 2017-05-26
location: Straßburg (France)
name: E-MRS Spring Meeting 2017
start_date: 2017-05-22
date_created: 2018-08-20T13:26:32Z
date_updated: 2022-01-06T06:59:59Z
department:
- _id: '286'
- _id: '15'
- _id: '2'
status: public
title: Tailored antidot patterns created by nanosphere lithography for bioapplications
type: conference
user_id: '55706'
year: '2017'
...