---
_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'
...