---
_id: '9761'
abstract:
- lang: eng
text: New mechatronic systems, called self-optimizing systems, are able to adapt
their behavior according to environmental, user and system specific influences.
Self-optimizing systems are complex and due to their non-deterministic behavior
comprise hidden risks, which cannot be foreseen in the design phase of the system.
Therefore, modifications of the ISO 17359 condition monitoring policy for being
able to cope with this new kind of systems are presented. Besides avoiding critical
situations evoked by self-optimization, the proposed concept uses self-optimization
to increase the dependability of the system. This concept is applied to the active
guidance module of an innovative rail-bound vehicle. First test drives provide
information for the enhancement of the implementation of realtime switching to
appropriate control strategies. The different control strategies are investigated
in detail. It is illustrated that influences on the system like different track
sections or the desired velocity of the RailCab effect the system and can lead
to a higher amount of flange contacts, which indicate higher wear and thus a reduction
of the availability of the system. Therefore, these influences should be minded
within the condition monitoring policy. Consequently, this article presents the
condition monitoring policy for self-optimizing function modules and its application
to the active railway guidance module.
author:
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Sondermann-Wölke C, Sextro W. Integration of Condition Monitoring in Self-optimizing
Function Modules Applied to the Active Railway Guidance Module. International
Journal On Advances in Intelligent Systems. 2010;3(1-3):65-74.
apa: Sondermann-Wölke, C., & Sextro, W. (2010). Integration of Condition Monitoring
in Self-optimizing Function Modules Applied to the Active Railway Guidance Module.
International Journal On Advances in Intelligent Systems, 3(1–3),
65–74.
bibtex: '@article{Sondermann-Wölke_Sextro_2010, title={Integration of Condition
Monitoring in Self-optimizing Function Modules Applied to the Active Railway Guidance
Module}, volume={3}, number={1–3}, journal={International Journal On Advances
in Intelligent Systems}, author={Sondermann-Wölke, Christoph and Sextro, Walter},
year={2010}, pages={65–74} }'
chicago: 'Sondermann-Wölke, Christoph, and Walter Sextro. “Integration of Condition
Monitoring in Self-Optimizing Function Modules Applied to the Active Railway Guidance
Module.” International Journal On Advances in Intelligent Systems 3, no.
1–3 (2010): 65–74.'
ieee: C. Sondermann-Wölke and W. Sextro, “Integration of Condition Monitoring in
Self-optimizing Function Modules Applied to the Active Railway Guidance Module,”
International Journal On Advances in Intelligent Systems, vol. 3, no. 1–3,
pp. 65–74, 2010.
mla: Sondermann-Wölke, Christoph, and Walter Sextro. “Integration of Condition Monitoring
in Self-Optimizing Function Modules Applied to the Active Railway Guidance Module.”
International Journal On Advances in Intelligent Systems, vol. 3, no. 1–3,
2010, pp. 65–74.
short: C. Sondermann-Wölke, W. Sextro, International Journal On Advances in Intelligent
Systems 3 (2010) 65–74.
date_created: 2019-05-13T10:27:02Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
intvolume: ' 3'
issue: 1 - 3
keyword:
- dependability
- condition monitoring
- selfoptimization
- active railway guidance module
language:
- iso: eng
page: 65 - 74
publication: International Journal On Advances in Intelligent Systems
quality_controlled: '1'
status: public
title: Integration of Condition Monitoring in Self-optimizing Function Modules Applied
to the Active Railway Guidance Module
type: journal_article
user_id: '55222'
volume: 3
year: '2010'
...
---
_id: '9762'
abstract:
- lang: eng
text: Die erweiterten Möglichkeiten der Informationsverarbeitung mechatronischer
Systeme erlauben es, mechatronische Systeme selbstoptimierend zu gestalten. Dabei
bezieht sich die Selbstoptimierung auf die Fähigkeit des Systems, sich an die
aktuelle Umfeldsituation anzupassen; wobei das System im Allgemeinen mehrere relevante
Ziele verfolgt. Wurde eine Umfeldveränderung bemerkt, so müssen diese Ziele an
die neue Situation angepasst und das resultierende Verhalten ausgewählt werden.
In diesem Beitrag wird das selbstoptimierende Spurführungsmodul näher untersucht.
Das Spurführungsmodul ist Bestandteil eines innovativen schienengebundenen Verkehrssystems,
genannt RailCab, und dient zur Lenkung des einzelnen Fahrzeugs. Ziele des Spurführungsmoduls
bestehen darin, die Verlässlichkeit des Spurführungsmoduls zu erhöhen sowie möglichst
wenig Energie zu verbrauchen. Um kritische Systemzustände zu erkennen bzw. frühzeitig
zu verhindern wird eine Vorgehensweise zur Einrichtung einer Zustandsüberwachung
für selbstoptimierende Systeme beschrieben. Diese wird auf dem realen Versuchsträger
im Maßstab 1:2,5 implementiert. Die Auswertung von Versuchsfahrten zeigt, dass
gerade beim Auftreten eines Fehlers das Umschalten vom Ziel ''Energieverbrauch
minimieren`` auf das Ziel ''Verlässlichkeit maximieren`` sinnvoll ist.
author:
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Jens
full_name: Geisler, Jens
last_name: Geisler
- first_name: Ansgar
full_name: Trächtler, Ansgar
last_name: Trächtler
citation:
ama: 'Sondermann-Wölke C, Sextro W, Geisler J, Trächtler A. Experimentelle Untersuchung
der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls. In: Gausemeier
J, Rammig FJ, Trächtler A, eds. Entwurf Mechatronischer Systeme. Vol 272.
HNI-Verlagsschriftenreihe. Paderborn; 2010:411-420.'
apa: Sondermann-Wölke, C., Sextro, W., Geisler, J., & Trächtler, A. (2010).
Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls.
In J. Gausemeier, F. J. Rammig, & A. Trächtler (Eds.), Entwurf mechatronischer
Systeme (Vol. 272, pp. 411–420). Paderborn.
bibtex: '@inproceedings{Sondermann-Wölke_Sextro_Geisler_Trächtler_2010, place={Paderborn},
series={HNI-Verlagsschriftenreihe}, title={Experimentelle Untersuchung der Selbstoptimierung
innerhalb des RailCab-Spurführungsmoduls}, volume={272}, booktitle={Entwurf mechatronischer
Systeme}, author={Sondermann-Wölke, Christoph and Sextro, Walter and Geisler,
Jens and Trächtler, Ansgar}, editor={Gausemeier, Jürgen and Rammig, Frans Josef
and Trächtler, AnsgarEditors}, year={2010}, pages={411–420}, collection={HNI-Verlagsschriftenreihe}
}'
chicago: Sondermann-Wölke, Christoph, Walter Sextro, Jens Geisler, and Ansgar Trächtler.
“Experimentelle Untersuchung Der Selbstoptimierung Innerhalb Des RailCab-Spurführungsmoduls.”
In Entwurf Mechatronischer Systeme, edited by Jürgen Gausemeier, Frans
Josef Rammig, and Ansgar Trächtler, 272:411–20. HNI-Verlagsschriftenreihe. Paderborn,
2010.
ieee: C. Sondermann-Wölke, W. Sextro, J. Geisler, and A. Trächtler, “Experimentelle
Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls,”
in Entwurf mechatronischer Systeme, 2010, vol. 272, pp. 411–420.
mla: Sondermann-Wölke, Christoph, et al. “Experimentelle Untersuchung Der Selbstoptimierung
Innerhalb Des RailCab-Spurführungsmoduls.” Entwurf Mechatronischer Systeme,
edited by Jürgen Gausemeier et al., vol. 272, 2010, pp. 411–20.
short: 'C. Sondermann-Wölke, W. Sextro, J. Geisler, A. Trächtler, in: J. Gausemeier,
F.J. Rammig, A. Trächtler (Eds.), Entwurf Mechatronischer Systeme, Paderborn,
2010, pp. 411–420.'
date_created: 2019-05-13T10:28:04Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
editor:
- first_name: Jürgen
full_name: Gausemeier, Jürgen
last_name: Gausemeier
- first_name: Frans Josef
full_name: Rammig, Frans Josef
last_name: Rammig
- first_name: Ansgar
full_name: Trächtler, Ansgar
last_name: Trächtler
intvolume: ' 272'
keyword:
- Selbstoptimierung
- Spurführungsmodul
language:
- iso: eng
page: 411 - 420
place: Paderborn
publication: Entwurf mechatronischer Systeme
quality_controlled: '1'
series_title: HNI-Verlagsschriftenreihe
status: public
title: Experimentelle Untersuchung der Selbstoptimierung innerhalb des RailCab-Spurführungsmoduls
type: conference
user_id: '55222'
volume: 272
year: '2010'
...
---
_id: '9763'
abstract:
- lang: eng
text: Recent advances in information processing enable new kinds of technical systems,
called self-optimizing systems. These systems are able to adapt their objectives
and their behavior according to the current situation and influences autonomously.
This behavior adaptation is non-deterministic and hence self-optimization is a
risk to the system, e.g. if the result of the self-optimization process does not
match the suddenly changed situation. In contrary, self-optimization could be
used to increase the dependability by pursuing objectives like reliability and
availability. In our preceding publications we introduced the so called multi-level
dependability concept to cope with this new kind of systems (cf. [6]). This concept
comprises the monitoring of the system behavior, the classification of the current
situation, and the selection of the appropriate measure, if reliability limits
are exceeded. In this paper we present for the first time experimental results.
The dependability concept is implemented in the self-optimizing active guidance
system of a railway vehicle. The test drives illustrate clearly that the proposed
concept is able to cope with, e.g., sensor failures, and is able to increase the
reliability and availability of the active guidance module.
author:
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Jens
full_name: Geisler, Jens
last_name: Geisler
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Sondermann-Wölke C, Geisler J, Sextro W. Increasing the reliability of a self-optimizing
railway guidance system. In: Reliability and Maintainability Symposium (RAMS),
2010 Proceedings - Annual. ; 2010:1-6. doi:10.1109/RAMS.2010.5448080'
apa: Sondermann-Wölke, C., Geisler, J., & Sextro, W. (2010). Increasing the
reliability of a self-optimizing railway guidance system. In Reliability and
Maintainability Symposium (RAMS), 2010 Proceedings - Annual (pp. 1–6). https://doi.org/10.1109/RAMS.2010.5448080
bibtex: '@inproceedings{Sondermann-Wölke_Geisler_Sextro_2010, title={Increasing
the reliability of a self-optimizing railway guidance system}, DOI={10.1109/RAMS.2010.5448080},
booktitle={Reliability and Maintainability Symposium (RAMS), 2010 Proceedings
- Annual}, author={Sondermann-Wölke, Christoph and Geisler, Jens and Sextro, Walter},
year={2010}, pages={1–6} }'
chicago: Sondermann-Wölke, Christoph, Jens Geisler, and Walter Sextro. “Increasing
the Reliability of a Self-Optimizing Railway Guidance System.” In Reliability
and Maintainability Symposium (RAMS), 2010 Proceedings - Annual, 1–6, 2010.
https://doi.org/10.1109/RAMS.2010.5448080.
ieee: C. Sondermann-Wölke, J. Geisler, and W. Sextro, “Increasing the reliability
of a self-optimizing railway guidance system,” in Reliability and Maintainability
Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6.
mla: Sondermann-Wölke, Christoph, et al. “Increasing the Reliability of a Self-Optimizing
Railway Guidance System.” Reliability and Maintainability Symposium (RAMS),
2010 Proceedings - Annual, 2010, pp. 1–6, doi:10.1109/RAMS.2010.5448080.
short: 'C. Sondermann-Wölke, J. Geisler, W. Sextro, in: Reliability and Maintainability
Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6.'
date_created: 2019-05-13T10:35:39Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/RAMS.2010.5448080
keyword:
- availability
- dependability concept
- multilevel dependability concept
- railway vehicle
- reliability
- self optimizing active guidance system
- self optimizing railway guidance system
- situation classification
- system behavior monitoring
- optimal control
- railways
- reliability theory
- self-adjusting systems
language:
- iso: eng
page: 1 -6
publication: Reliability and Maintainability Symposium (RAMS), 2010 Proceedings -
Annual
publication_identifier:
issn:
- 0149-144X
quality_controlled: '1'
status: public
title: Increasing the reliability of a self-optimizing railway guidance system
type: conference
user_id: '55222'
year: '2010'
...
---
_id: '9764'
author:
- first_name: Christoph
full_name: Tomberger, Christoph
last_name: Tomberger
- first_name: Peter
full_name: Dietmaier, Peter
last_name: Dietmaier
- first_name: Rosenberger
full_name: Martin, Rosenberger
last_name: Martin
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Klaus
full_name: Six, Klaus
last_name: Six
citation:
ama: Tomberger C, Dietmaier P, Martin R, Sextro W, Six K. Einfluss von Oberflächenrauheit,
fluiden Zwischenschichten und Kontakttemperaturen auf den Kraftschluss zwischen
Rad und Schiene. ZEVrail. 2010;134:127-135.
apa: Tomberger, C., Dietmaier, P., Martin, R., Sextro, W., & Six, K. (2010).
Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen
auf den Kraftschluss zwischen Rad und Schiene. ZEVrail, 134, 127–135.
bibtex: '@article{Tomberger_Dietmaier_Martin_Sextro_Six_2010, title={Einfluss von
Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den
Kraftschluss zwischen Rad und Schiene}, volume={134}, journal={ZEVrail}, author={Tomberger,
Christoph and Dietmaier, Peter and Martin, Rosenberger and Sextro, Walter and
Six, Klaus}, year={2010}, pages={127–135} }'
chicago: 'Tomberger, Christoph, Peter Dietmaier, Rosenberger Martin, Walter Sextro,
and Klaus Six. “Einfluss von Oberflächenrauheit, Fluiden Zwischenschichten Und
Kontakttemperaturen Auf Den Kraftschluss Zwischen Rad Und Schiene.” ZEVrail
134 (2010): 127–35.'
ieee: C. Tomberger, P. Dietmaier, R. Martin, W. Sextro, and K. Six, “Einfluss von
Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den
Kraftschluss zwischen Rad und Schiene,” ZEVrail, vol. 134, pp. 127–135,
2010.
mla: Tomberger, Christoph, et al. “Einfluss von Oberflächenrauheit, Fluiden Zwischenschichten
Und Kontakttemperaturen Auf Den Kraftschluss Zwischen Rad Und Schiene.” ZEVrail,
vol. 134, 2010, pp. 127–35.
short: C. Tomberger, P. Dietmaier, R. Martin, W. Sextro, K. Six, ZEVrail 134 (2010)
127–135.
date_created: 2019-05-13T10:37:07Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
intvolume: ' 134'
language:
- iso: eng
page: 127-135
publication: ZEVrail
publication_identifier:
issn:
- 0043-1648
status: public
title: Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen
auf den Kraftschluss zwischen Rad und Schiene
type: journal_article
user_id: '55222'
volume: 134
year: '2010'
...
---
_id: '9742'
abstract:
- lang: eng
text: New mechatronic systems, called self-optimizing systems, are able to adapt
their behavior according to environmental, user and system specific influences.
Self-optimizing systems are complex and due to their non-deterministic behavior
comprise hidden risks, which cannot be foreseen in the design phase of the system.
Therefore, this paper presents modifications of the current condition monitoring
policy, to be able to cope with this new kind of systems. Beside avoiding critical
situations evoked by self-optimization, the proposed concept uses self-optimization
to increase the dependability of the system. In this case, the concept is applied
to the active guidance module of an innovative rail-bound vehicle.
author:
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Sondermann-Wölke C, Sextro W. Towards the Integration of Condition Monitoring
in Self-Optimizing Function Modules. In: Future Computing, Service Computation,
Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09. Computation
World: ; 2009:15-20. doi:10.1109/ComputationWorld.2009.47'
apa: Sondermann-Wölke, C., & Sextro, W. (2009). Towards the Integration of Condition
Monitoring in Self-Optimizing Function Modules. In Future Computing, Service
Computation, Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09.
Computation World: (pp. 15–20). https://doi.org/10.1109/ComputationWorld.2009.47
bibtex: '@inproceedings{Sondermann-Wölke_Sextro_2009, title={Towards the Integration
of Condition Monitoring in Self-Optimizing Function Modules}, DOI={10.1109/ComputationWorld.2009.47},
booktitle={Future Computing, Service Computation, Cognitive, Adaptive, Content,
Patterns, 2009. COMPUTATIONWORLD ’09. Computation World:}, author={Sondermann-Wölke,
Christoph and Sextro, Walter}, year={2009}, pages={15–20} }'
chicago: Sondermann-Wölke, Christoph, and Walter Sextro. “Towards the Integration
of Condition Monitoring in Self-Optimizing Function Modules.” In Future Computing,
Service Computation, Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD
’09. Computation World:, 15–20, 2009. https://doi.org/10.1109/ComputationWorld.2009.47.
ieee: C. Sondermann-Wölke and W. Sextro, “Towards the Integration of Condition Monitoring
in Self-Optimizing Function Modules,” in Future Computing, Service Computation,
Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09. Computation
World:, 2009, pp. 15–20.
mla: Sondermann-Wölke, Christoph, and Walter Sextro. “Towards the Integration of
Condition Monitoring in Self-Optimizing Function Modules.” Future Computing,
Service Computation, Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD
’09. Computation World:, 2009, pp. 15–20, doi:10.1109/ComputationWorld.2009.47.
short: 'C. Sondermann-Wölke, W. Sextro, in: Future Computing, Service Computation,
Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09. Computation
World:, 2009, pp. 15–20.'
date_created: 2019-05-13T09:31:52Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/ComputationWorld.2009.47
keyword:
- condition monitoring
- mechatronic systems
- rail bound vehicle
- rail guidance module
- self-optimization
- self-optimizing function modules
- condition monitoring
- mechatronics
- railway rolling stock
- self-adjusting systems
language:
- iso: eng
page: 15 -20
publication: 'Future Computing, Service Computation, Cognitive, Adaptive, Content,
Patterns, 2009. COMPUTATIONWORLD ''09. Computation World:'
status: public
title: Towards the Integration of Condition Monitoring in Self-Optimizing Function
Modules
type: conference
user_id: '55222'
year: '2009'
...
---
_id: '9560'
author:
- first_name: Anton
full_name: Tonchev, Anton
last_name: Tonchev
- first_name: Wolfgang
full_name: Hirschberg, Wolfgang
last_name: Hirschberg
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Zoltan
full_name: Major, Zoltan
last_name: Major
- first_name: Josef
full_name: Neges, Josef
last_name: Neges
citation:
ama: 'Tonchev A, Hirschberg W, Sextro W, Major Z, Neges J. Modellierung der Hysterese-
und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe. In: 27. Internationales
Mju-Symposium/Bremsen-Fachtagung. 12. Bad Neuenahr: VDI Verlag GmbH; 2007:29-49.'
apa: 'Tonchev, A., Hirschberg, W., Sextro, W., Major, Z., & Neges, J. (2007).
Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe.
In 27. Internationales Mju-Symposium/Bremsen-Fachtagung (pp. 29–49). Bad
Neuenahr: VDI Verlag GmbH.'
bibtex: '@inproceedings{Tonchev_Hirschberg_Sextro_Major_Neges_2007, place={Bad Neuenahr},
series={12}, title={Modellierung der Hysterese- und Adhäsionseffekte zwischen
Bremsbelag und Bremsscheibe}, number={657}, booktitle={27. Internationales Mju-Symposium/Bremsen-Fachtagung},
publisher={VDI Verlag GmbH}, author={Tonchev, Anton and Hirschberg, Wolfgang and
Sextro, Walter and Major, Zoltan and Neges, Josef}, year={2007}, pages={29–49},
collection={12} }'
chicago: 'Tonchev, Anton, Wolfgang Hirschberg, Walter Sextro, Zoltan Major, and
Josef Neges. “Modellierung Der Hysterese- Und Adhäsionseffekte Zwischen Bremsbelag
Und Bremsscheibe.” In 27. Internationales Mju-Symposium/Bremsen-Fachtagung,
29–49. 12. Bad Neuenahr: VDI Verlag GmbH, 2007.'
ieee: A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, and J. Neges, “Modellierung
der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe,” in
27. Internationales Mju-Symposium/Bremsen-Fachtagung, 2007, no. 657, pp.
29–49.
mla: Tonchev, Anton, et al. “Modellierung Der Hysterese- Und Adhäsionseffekte Zwischen
Bremsbelag Und Bremsscheibe.” 27. Internationales Mju-Symposium/Bremsen-Fachtagung,
no. 657, VDI Verlag GmbH, 2007, pp. 29–49.
short: 'A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, J. Neges, in: 27. Internationales
Mju-Symposium/Bremsen-Fachtagung, VDI Verlag GmbH, Bad Neuenahr, 2007, pp. 29–49.'
date_created: 2019-04-29T10:03:13Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: '657'
language:
- iso: eng
page: 29 - 49
place: Bad Neuenahr
publication: 27. Internationales Mju-Symposium/Bremsen-Fachtagung
publisher: VDI Verlag GmbH
series_title: '12'
status: public
title: Modellierung der Hysterese- und Adhäsionseffekte zwischen Bremsbelag und Bremsscheibe
type: conference
user_id: '55222'
year: '2007'
...
---
_id: '9561'
author:
- first_name: Anton
full_name: Tonchev, Anton
last_name: Tonchev
- first_name: Wolfgang
full_name: Hirschberg, Wolfgang
last_name: Hirschberg
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Zoltan
full_name: Major, Zoltan
last_name: Major
- first_name: Josef
full_name: Neges, Josef
last_name: Neges
citation:
ama: 'Tonchev A, Hirschberg W, Sextro W, Major Z, Neges J. Modelling of Hysteresis
and Adhesion Effects between Brake Pad and Disc. In: 27. Internationales Mju-Symposium/Bremsen-Fachtagung.
12. Bad Neuenahr: VDI Verlag GmbH; 2007:144-163.'
apa: 'Tonchev, A., Hirschberg, W., Sextro, W., Major, Z., & Neges, J. (2007).
Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc. In 27.
Internationales Mju-Symposium/Bremsen-Fachtagung (pp. 144–163). Bad Neuenahr:
VDI Verlag GmbH.'
bibtex: '@inproceedings{Tonchev_Hirschberg_Sextro_Major_Neges_2007, place={Bad Neuenahr},
series={12}, title={Modelling of Hysteresis and Adhesion Effects between Brake
Pad and Disc}, number={657}, booktitle={27. Internationales Mju-Symposium/Bremsen-Fachtagung},
publisher={VDI Verlag GmbH}, author={Tonchev, Anton and Hirschberg, Wolfgang and
Sextro, Walter and Major, Zoltan and Neges, Josef}, year={2007}, pages={144–163},
collection={12} }'
chicago: 'Tonchev, Anton, Wolfgang Hirschberg, Walter Sextro, Zoltan Major, and
Josef Neges. “Modelling of Hysteresis and Adhesion Effects between Brake Pad and
Disc.” In 27. Internationales Mju-Symposium/Bremsen-Fachtagung, 144–63.
12. Bad Neuenahr: VDI Verlag GmbH, 2007.'
ieee: A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, and J. Neges, “Modelling of
Hysteresis and Adhesion Effects between Brake Pad and Disc,” in 27. Internationales
Mju-Symposium/Bremsen-Fachtagung, 2007, no. 657, pp. 144–163.
mla: Tonchev, Anton, et al. “Modelling of Hysteresis and Adhesion Effects between
Brake Pad and Disc.” 27. Internationales Mju-Symposium/Bremsen-Fachtagung,
no. 657, VDI Verlag GmbH, 2007, pp. 144–63.
short: 'A. Tonchev, W. Hirschberg, W. Sextro, Z. Major, J. Neges, in: 27. Internationales
Mju-Symposium/Bremsen-Fachtagung, VDI Verlag GmbH, Bad Neuenahr, 2007, pp. 144–163.'
date_created: 2019-04-29T10:08:11Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
issue: '657'
language:
- iso: eng
page: 144-163
place: Bad Neuenahr
publication: 27. Internationales Mju-Symposium/Bremsen-Fachtagung
publisher: VDI Verlag GmbH
series_title: '12'
status: public
title: Modelling of Hysteresis and Adhesion Effects between Brake Pad and Disc
type: conference
user_id: '55222'
year: '2007'
...
---
_id: '9563'
author:
- first_name: Alexander
full_name: Genzo, Alexander
last_name: Genzo
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Lars
full_name: Panning, Lars
last_name: Panning
citation:
ama: 'Genzo A, Sextro W, Panning L. Schwingungsverhalten elastischer Körper mit
nichtlinearen Kopplungen in ausgedehnten Reibkontakten. In: VDI-Berichte.
Vol 2022. Düsseldorf: VDI Verlag GmbH; 2007:147-161.'
apa: 'Genzo, A., Sextro, W., & Panning, L. (2007). Schwingungsverhalten elastischer
Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten. In VDI-Berichte
(Vol. 2022, pp. 147–161). Düsseldorf: VDI Verlag GmbH.'
bibtex: '@inproceedings{Genzo_Sextro_Panning_2007, place={Düsseldorf}, title={Schwingungsverhalten
elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten},
volume={2022}, booktitle={VDI-Berichte}, publisher={VDI Verlag GmbH}, author={Genzo,
Alexander and Sextro, Walter and Panning, Lars}, year={2007}, pages={147–161}
}'
chicago: 'Genzo, Alexander, Walter Sextro, and Lars Panning. “Schwingungsverhalten
Elastischer Körper Mit Nichtlinearen Kopplungen in Ausgedehnten Reibkontakten.”
In VDI-Berichte, 2022:147–61. Düsseldorf: VDI Verlag GmbH, 2007.'
ieee: A. Genzo, W. Sextro, and L. Panning, “Schwingungsverhalten elastischer Körper
mit nichtlinearen Kopplungen in ausgedehnten Reibkontakten,” in VDI-Berichte,
2007, vol. 2022, pp. 147–161.
mla: Genzo, Alexander, et al. “Schwingungsverhalten Elastischer Körper Mit Nichtlinearen
Kopplungen in Ausgedehnten Reibkontakten.” VDI-Berichte, vol. 2022, VDI
Verlag GmbH, 2007, pp. 147–61.
short: 'A. Genzo, W. Sextro, L. Panning, in: VDI-Berichte, VDI Verlag GmbH, Düsseldorf,
2007, pp. 147–161.'
date_created: 2019-04-29T10:17:42Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
intvolume: ' 2022'
language:
- iso: eng
page: 147-161
place: Düsseldorf
publication: VDI-Berichte
publisher: VDI Verlag GmbH
status: public
title: Schwingungsverhalten elastischer Körper mit nichtlinearen Kopplungen in ausgedehnten
Reibkontakten
type: conference
user_id: '55222'
volume: 2022
year: '2007'
...
---
_id: '9567'
abstract:
- lang: eng
text: Numerical predictions of the forced vibration of a disk assembly including
frictional effects between the shrouds are presented concerning engineering needs
for the blade design process. Assuming a tuned disk assembly, numerical static,
free, and then forced vibration analyses of a shrouded turbine blade measured
in the spin pit are performed systematically. For the excitation forces of an
air jet evaluated from the fairly linear behavior of the experimental blade resonance
peaks, the reliability of the proposed approach is validated through the very
close agreement of the computed and measured resonant peaks. These resonant peaks
demonstrate either a fairly linear behavior or a nonlinear one like the jump effect
of blade resonance amplitudes, or elastic impacts between the shrouds. Also, the
damping performance for different contact configurations between the shrouds is
numerically analyzed. These numerical results indicate that the shrouds generate
higher frictional damping for small angles (0{\^a}30deg) between the circumferential
direction and the normal vector to the contact surface.
author:
- first_name: J
full_name: Szwedowicz, J
last_name: Szwedowicz
- first_name: R
full_name: Visser, R
last_name: Visser
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: P. A
full_name: Masserey, P. A
last_name: Masserey
citation:
ama: Szwedowicz J, Visser R, Sextro W, Masserey PA. On Nonlinear Forced Vibration
of Shrouded Turbine Blades. Journal of Turbomachinery. 2007;130(1):011002-011002.
apa: Szwedowicz, J., Visser, R., Sextro, W., & Masserey, P. A. (2007). On Nonlinear
Forced Vibration of Shrouded Turbine Blades. Journal of Turbomachinery,
130(1), 011002–011002.
bibtex: '@article{Szwedowicz_Visser_Sextro_Masserey_2007, title={On Nonlinear Forced
Vibration of Shrouded Turbine Blades}, volume={130}, number={1}, journal={Journal
of Turbomachinery}, author={Szwedowicz, J and Visser, R and Sextro, Walter and
Masserey, P. A}, year={2007}, pages={011002–011002} }'
chicago: 'Szwedowicz, J, R Visser, Walter Sextro, and P. A Masserey. “On Nonlinear
Forced Vibration of Shrouded Turbine Blades.” Journal of Turbomachinery
130, no. 1 (2007): 011002–011002.'
ieee: J. Szwedowicz, R. Visser, W. Sextro, and P. A. Masserey, “On Nonlinear Forced
Vibration of Shrouded Turbine Blades,” Journal of Turbomachinery, vol.
130, no. 1, pp. 011002–011002, 2007.
mla: Szwedowicz, J., et al. “On Nonlinear Forced Vibration of Shrouded Turbine Blades.”
Journal of Turbomachinery, vol. 130, no. 1, 2007, pp. 011002–011002.
short: J. Szwedowicz, R. Visser, W. Sextro, P.A. Masserey, Journal of Turbomachinery
130 (2007) 011002–011002.
date_created: 2019-04-29T10:25:57Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
intvolume: ' 130'
issue: '1'
language:
- iso: eng
page: 011002-011002
publication: Journal of Turbomachinery
publication_identifier:
issn:
- 0889-504X
quality_controlled: '1'
status: public
title: On Nonlinear Forced Vibration of Shrouded Turbine Blades
type: journal_article
user_id: '55222'
volume: 130
year: '2007'
...
---
_id: '9535'
author:
- first_name: Alexander
full_name: Genzo, Alexander
last_name: Genzo
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Genzo A, Sextro W. Dynamic Behaviour of Elastic Bodies Coupled by Extended
Friction Contacts. In: Proceedings of ISMA - International Conference on Noise
and Vibration Engineering. ; 2006:51-52.'
apa: Genzo, A., & Sextro, W. (2006). Dynamic Behaviour of Elastic Bodies Coupled
by Extended Friction Contacts. In Proceedings of ISMA - International conference
on noise and vibration engineering (pp. 51–52).
bibtex: '@inproceedings{Genzo_Sextro_2006, title={Dynamic Behaviour of Elastic Bodies
Coupled by Extended Friction Contacts}, booktitle={Proceedings of ISMA - International
conference on noise and vibration engineering}, author={Genzo, Alexander and Sextro,
Walter}, year={2006}, pages={51–52} }'
chicago: Genzo, Alexander, and Walter Sextro. “Dynamic Behaviour of Elastic Bodies
Coupled by Extended Friction Contacts.” In Proceedings of ISMA - International
Conference on Noise and Vibration Engineering, 51–52, 2006.
ieee: A. Genzo and W. Sextro, “Dynamic Behaviour of Elastic Bodies Coupled by Extended
Friction Contacts,” in Proceedings of ISMA - International conference on noise
and vibration engineering, 2006, pp. 51–52.
mla: Genzo, Alexander, and Walter Sextro. “Dynamic Behaviour of Elastic Bodies Coupled
by Extended Friction Contacts.” Proceedings of ISMA - International Conference
on Noise and Vibration Engineering, 2006, pp. 51–52.
short: 'A. Genzo, W. Sextro, in: Proceedings of ISMA - International Conference
on Noise and Vibration Engineering, 2006, pp. 51–52.'
date_created: 2019-04-29T08:54:27Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
keyword:
- Noise
- Vibration engineering
language:
- iso: eng
page: 51-52
publication: Proceedings of ISMA - International conference on noise and vibration
engineering
status: public
title: Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9536'
abstract:
- lang: eng
text: This paper presents a model for unsteady longitudinal slippage of a loaded
rubber wheel. The aim of modelling was to calculate the dynamical contact behavior
in a numerical efficient way. Further on, simulation results are compared to experimental
data.
author:
- first_name: F
full_name: Gutzeit, F
last_name: Gutzeit
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Matthias
full_name: Kröger, Matthias
last_name: Kröger
citation:
ama: 'Gutzeit F, Sextro W, Kröger M. Unsteady rolling contact of rubber wheels.
In: Wriggers P, Nackenhorst U, eds. Analysis and Simulation of Contact Problems.
Vol 27. Lecture Notes in Applied and Computational Mechanics. Springer Berlin
Heidelberg; 2006:261-270. doi:10.1007/3-540-31761-9_29'
apa: Gutzeit, F., Sextro, W., & Kröger, M. (2006). Unsteady rolling contact
of rubber wheels. In P. Wriggers & U. Nackenhorst (Eds.), Analysis and
Simulation of Contact Problems (Vol. 27, pp. 261–270). Springer Berlin Heidelberg.
https://doi.org/10.1007/3-540-31761-9_29
bibtex: '@inbook{Gutzeit_Sextro_Kröger_2006, series={Lecture Notes in Applied and
Computational Mechanics}, title={Unsteady rolling contact of rubber wheels}, volume={27},
DOI={10.1007/3-540-31761-9_29},
booktitle={Analysis and Simulation of Contact Problems}, publisher={Springer Berlin
Heidelberg}, author={Gutzeit, F and Sextro, Walter and Kröger, Matthias}, editor={Wriggers,
Peter and Nackenhorst, UdoEditors}, year={2006}, pages={261–270}, collection={Lecture
Notes in Applied and Computational Mechanics} }'
chicago: Gutzeit, F, Walter Sextro, and Matthias Kröger. “Unsteady Rolling Contact
of Rubber Wheels.” In Analysis and Simulation of Contact Problems, edited
by Peter Wriggers and Udo Nackenhorst, 27:261–70. Lecture Notes in Applied and
Computational Mechanics. Springer Berlin Heidelberg, 2006. https://doi.org/10.1007/3-540-31761-9_29.
ieee: F. Gutzeit, W. Sextro, and M. Kröger, “Unsteady rolling contact of rubber
wheels,” in Analysis and Simulation of Contact Problems, vol. 27, P. Wriggers
and U. Nackenhorst, Eds. Springer Berlin Heidelberg, 2006, pp. 261–270.
mla: Gutzeit, F., et al. “Unsteady Rolling Contact of Rubber Wheels.” Analysis
and Simulation of Contact Problems, edited by Peter Wriggers and Udo Nackenhorst,
vol. 27, Springer Berlin Heidelberg, 2006, pp. 261–70, doi:10.1007/3-540-31761-9_29.
short: 'F. Gutzeit, W. Sextro, M. Kröger, in: P. Wriggers, U. Nackenhorst (Eds.),
Analysis and Simulation of Contact Problems, Springer Berlin Heidelberg, 2006,
pp. 261–270.'
date_created: 2019-04-29T08:55:49Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1007/3-540-31761-9_29
editor:
- first_name: Peter
full_name: Wriggers, Peter
last_name: Wriggers
- first_name: Udo
full_name: Nackenhorst, Udo
last_name: Nackenhorst
intvolume: ' 27'
language:
- iso: eng
page: 261-270
publication: Analysis and Simulation of Contact Problems
publication_identifier:
isbn:
- 978-3-540-31760-9
publisher: Springer Berlin Heidelberg
quality_controlled: '1'
series_title: Lecture Notes in Applied and Computational Mechanics
status: public
title: Unsteady rolling contact of rubber wheels
type: book_chapter
user_id: '55222'
volume: 27
year: '2006'
...
---
_id: '9542'
author:
- first_name: Adolf
full_name: Hofmeisterro, Adolf
last_name: Hofmeisterro
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Otto
full_name: Röschel, Otto
last_name: Röschel
citation:
ama: 'Hofmeisterro A, Sextro W, Röschel O. Error-Workspace Analysis of Plane Mechanisms.
In: Proceedings of EUCOMES, the First European Conference on Mechanism Science.
Obergurgl, {\"O}sterreich; 2006:1-12.'
apa: Hofmeisterro, A., Sextro, W., & Röschel, O. (2006). Error-Workspace Analysis
of Plane Mechanisms. In Proceedings of EUCOMES, the first European Conference
on Mechanism Science (pp. 1–12). Obergurgl, {\"O}sterreich.
bibtex: '@inproceedings{Hofmeisterro_Sextro_Röschel_2006, place={Obergurgl, {\"O}sterreich},
title={Error-Workspace Analysis of Plane Mechanisms}, booktitle={Proceedings of
EUCOMES, the first European Conference on Mechanism Science}, author={Hofmeisterro,
Adolf and Sextro, Walter and Röschel, Otto}, year={2006}, pages={1–12} }'
chicago: Hofmeisterro, Adolf, Walter Sextro, and Otto Röschel. “Error-Workspace
Analysis of Plane Mechanisms.” In Proceedings of EUCOMES, the First European
Conference on Mechanism Science, 1–12. Obergurgl, {\"O}sterreich, 2006.
ieee: A. Hofmeisterro, W. Sextro, and O. Röschel, “Error-Workspace Analysis of Plane
Mechanisms,” in Proceedings of EUCOMES, the first European Conference on Mechanism
Science, 2006, pp. 1–12.
mla: Hofmeisterro, Adolf, et al. “Error-Workspace Analysis of Plane Mechanisms.”
Proceedings of EUCOMES, the First European Conference on Mechanism Science,
2006, pp. 1–12.
short: 'A. Hofmeisterro, W. Sextro, O. Röschel, in: Proceedings of EUCOMES, the
First European Conference on Mechanism Science, Obergurgl, {\"O}sterreich, 2006,
pp. 1–12.'
date_created: 2019-04-29T09:25:17Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
language:
- iso: eng
page: 1-12
place: Obergurgl, {\"O}sterreich
publication: Proceedings of EUCOMES, the first European Conference on Mechanism Science
status: public
title: Error-Workspace Analysis of Plane Mechanisms
type: conference
user_id: '55222'
year: '2006'
...
---
_id: '9551'
abstract:
- lang: eng
text: Friction occurs in the contact between tyre and road. The friction of rubber
material on dry surfaces is dominated by hysteresis and adhesion effects. Hysterisis
friction is characterised by the energy dissipation within the visco-elastic material,
which is caused by its deformation while passing the surface roughness. Hysteresis
effects are modelled by an extended linear visco-elastic material with several
Maxwell elements. The development of a model in the time domain allows to consider
nonlinear effects. Additionally temperature effects are taken into account based
on the WLF-transformation. Adhesion forces originate from molecular bindings between
the contact partners. This effect is simulated by applying a modified model of
Achenbach on real surfaces. The temperature distribution within the friction contact
region is investigated experimentally as well. Furthermore global stick-slip vibrations
of a rubber block element are investigated using a global contact model. Numerical
results are compared with experiments performed on a tribometer test rig.
author:
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Patrick
full_name: Moldenhauer, Patrick
last_name: Moldenhauer
- first_name: M
full_name: Wangenheim, M
last_name: Wangenheim
- first_name: Markus
full_name: Lindner, Markus
last_name: Lindner
- first_name: Matthias
full_name: Kröger, Matthias
last_name: Kröger
citation:
ama: 'Sextro W, Moldenhauer P, Wangenheim M, Lindner M, Kröger M. Contact behaviour
of a sliding rubber element. In: Wriggers P, Nackenhorst U, eds. Analysis and
Simulation of Contact Problems. Vol 27. Lecture Notes in Applied and Computational
Mechanics. Springer Berlin Heidelberg; 2006:243-252. doi:10.1007/3-540-31761-9_27'
apa: Sextro, W., Moldenhauer, P., Wangenheim, M., Lindner, M., & Kröger, M.
(2006). Contact behaviour of a sliding rubber element. In P. Wriggers & U.
Nackenhorst (Eds.), Analysis and Simulation of Contact Problems (Vol. 27,
pp. 243–252). Springer Berlin Heidelberg. https://doi.org/10.1007/3-540-31761-9_27
bibtex: '@inbook{Sextro_Moldenhauer_Wangenheim_Lindner_Kröger_2006, series={Lecture
Notes in Applied and Computational Mechanics}, title={Contact behaviour of a sliding
rubber element}, volume={27}, DOI={10.1007/3-540-31761-9_27},
booktitle={Analysis and Simulation of Contact Problems}, publisher={Springer Berlin
Heidelberg}, author={Sextro, Walter and Moldenhauer, Patrick and Wangenheim, M
and Lindner, Markus and Kröger, Matthias}, editor={Wriggers, Peter and Nackenhorst,
UdoEditors}, year={2006}, pages={243–252}, collection={Lecture Notes in Applied
and Computational Mechanics} }'
chicago: Sextro, Walter, Patrick Moldenhauer, M Wangenheim, Markus Lindner, and
Matthias Kröger. “Contact Behaviour of a Sliding Rubber Element.” In Analysis
and Simulation of Contact Problems, edited by Peter Wriggers and Udo Nackenhorst,
27:243–52. Lecture Notes in Applied and Computational Mechanics. Springer Berlin
Heidelberg, 2006. https://doi.org/10.1007/3-540-31761-9_27.
ieee: W. Sextro, P. Moldenhauer, M. Wangenheim, M. Lindner, and M. Kröger, “Contact
behaviour of a sliding rubber element,” in Analysis and Simulation of Contact
Problems, vol. 27, P. Wriggers and U. Nackenhorst, Eds. Springer Berlin Heidelberg,
2006, pp. 243–252.
mla: Sextro, Walter, et al. “Contact Behaviour of a Sliding Rubber Element.” Analysis
and Simulation of Contact Problems, edited by Peter Wriggers and Udo Nackenhorst,
vol. 27, Springer Berlin Heidelberg, 2006, pp. 243–52, doi:10.1007/3-540-31761-9_27.
short: 'W. Sextro, P. Moldenhauer, M. Wangenheim, M. Lindner, M. Kröger, in: P.
Wriggers, U. Nackenhorst (Eds.), Analysis and Simulation of Contact Problems,
Springer Berlin Heidelberg, 2006, pp. 243–252.'
date_created: 2019-04-29T09:42:01Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1007/3-540-31761-9_27
editor:
- first_name: Peter
full_name: Wriggers, Peter
last_name: Wriggers
- first_name: Udo
full_name: Nackenhorst, Udo
last_name: Nackenhorst
intvolume: ' 27'
language:
- iso: eng
page: 243-252
publication: Analysis and Simulation of Contact Problems
publication_identifier:
isbn:
- 978-3-540-31760-9
publisher: Springer Berlin Heidelberg
series_title: Lecture Notes in Applied and Computational Mechanics
status: public
title: Contact behaviour of a sliding rubber element
type: book_chapter
user_id: '55222'
volume: 27
year: '2006'
...
---
_id: '9266'
abstract:
- lang: eng
text: The present paper deals with the forced vibration analysis of a test structure.
The test structure consists of two parts, an upper and a lower half pipe, joint
in two bolted flanges which represent the extended friction contacts. Depending
on the clamping loads different normal pressure distributions can be established
in the contact interfaces. Since the test structure is loaded with a harmonic
external force relative displacements occur in the contact interface. This leads
to microslip effects affecting the dynamic behaviour. The experimental validation
of the calculation method accounting for these effects is shown by comparing measured
and calculated frequency response functions (FRF). ({\^A}{\copyright} 2005 WILEY-VCH
Verlag GmbH & Co. KGaA, Weinheim)
author:
- first_name: Alexander
full_name: Genzo, Alexander
last_name: Genzo
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Karl
full_name: Popp, Karl
last_name: Popp
citation:
ama: Genzo A, Sextro W, Popp K. Analysis of the Forced Vibration of Two Bolted Half-Pipes
with Extended Friction Contacts. PAMM. 2005;5(1):91-92. doi:10.1002/pamm.200510026
apa: Genzo, A., Sextro, W., & Popp, K. (2005). Analysis of the Forced Vibration
of Two Bolted Half-Pipes with Extended Friction Contacts. PAMM, 5(1),
91–92. https://doi.org/10.1002/pamm.200510026
bibtex: '@article{Genzo_Sextro_Popp_2005, title={Analysis of the Forced Vibration
of Two Bolted Half-Pipes with Extended Friction Contacts}, volume={5}, DOI={10.1002/pamm.200510026}, number={1},
journal={PAMM}, publisher={WILEY-VCH Verlag}, author={Genzo, Alexander and Sextro,
Walter and Popp, Karl}, year={2005}, pages={91–92} }'
chicago: 'Genzo, Alexander, Walter Sextro, and Karl Popp. “Analysis of the Forced
Vibration of Two Bolted Half-Pipes with Extended Friction Contacts.” PAMM
5, no. 1 (2005): 91–92. https://doi.org/10.1002/pamm.200510026.'
ieee: A. Genzo, W. Sextro, and K. Popp, “Analysis of the Forced Vibration of Two
Bolted Half-Pipes with Extended Friction Contacts,” PAMM, vol. 5, no. 1,
pp. 91–92, 2005.
mla: Genzo, Alexander, et al. “Analysis of the Forced Vibration of Two Bolted Half-Pipes
with Extended Friction Contacts.” PAMM, vol. 5, no. 1, WILEY-VCH Verlag,
2005, pp. 91–92, doi:10.1002/pamm.200510026.
short: A. Genzo, W. Sextro, K. Popp, PAMM 5 (2005) 91–92.
date_created: 2019-04-18T07:34:48Z
date_updated: 2022-01-06T07:04:11Z
department:
- _id: '151'
doi: 10.1002/pamm.200510026
intvolume: ' 5'
issue: '1'
language:
- iso: eng
page: 91-92
publication: PAMM
publication_identifier:
issn:
- 1617-7061
publisher: WILEY-VCH Verlag
status: public
title: Analysis of the Forced Vibration of Two Bolted Half-Pipes with Extended Friction
Contacts
type: journal_article
user_id: '55222'
volume: 5
year: '2005'
...
---
_id: '9526'
abstract:
- lang: eng
text: The present paper deals with the forced vibration analysis of a test structure.
The test structure consists of two parts, an upper and a lower half pipe, joint
in two bolted flanges which represent the extended friction contacts. Depending
on the clamping loads different normal pressure distributions can be established
in the contact interfaces. Since the test structure is loaded with a harmonic
external force relative displacements occur in the contact interface. This leads
to microslip effects affecting the dynamic behaviour. The experimental validation
of the calculation method accounting for these effects is shown by comparing measured
and calculated frequency response functions (FRF). ({\^A}{\copyright} 2005 WILEY-VCH
Verlag GmbH & Co. KGaA, Weinheim)
author:
- first_name: Alexander
full_name: Genzo, Alexander
last_name: Genzo
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Karl
full_name: Popp, Karl
last_name: Popp
citation:
ama: Genzo A, Sextro W, Popp K. Analysis of the Forced Vibration of Two Bolted Half-Pipes
with Extended Friction Contacts. PAMM. 2005;5(1):91-92. doi:10.1002/pamm.200510026
apa: Genzo, A., Sextro, W., & Popp, K. (2005). Analysis of the Forced Vibration
of Two Bolted Half-Pipes with Extended Friction Contacts. PAMM, 5(1),
91–92. https://doi.org/10.1002/pamm.200510026
bibtex: '@article{Genzo_Sextro_Popp_2005, title={Analysis of the Forced Vibration
of Two Bolted Half-Pipes with Extended Friction Contacts}, volume={5}, DOI={10.1002/pamm.200510026}, number={1},
journal={PAMM}, publisher={WILEY-VCH Verlag}, author={Genzo, Alexander and Sextro,
Walter and Popp, Karl}, year={2005}, pages={91–92} }'
chicago: 'Genzo, Alexander, Walter Sextro, and Karl Popp. “Analysis of the Forced
Vibration of Two Bolted Half-Pipes with Extended Friction Contacts.” PAMM
5, no. 1 (2005): 91–92. https://doi.org/10.1002/pamm.200510026.'
ieee: A. Genzo, W. Sextro, and K. Popp, “Analysis of the Forced Vibration of Two
Bolted Half-Pipes with Extended Friction Contacts,” PAMM, vol. 5, no. 1,
pp. 91–92, 2005.
mla: Genzo, Alexander, et al. “Analysis of the Forced Vibration of Two Bolted Half-Pipes
with Extended Friction Contacts.” PAMM, vol. 5, no. 1, WILEY-VCH Verlag,
2005, pp. 91–92, doi:10.1002/pamm.200510026.
short: A. Genzo, W. Sextro, K. Popp, PAMM 5 (2005) 91–92.
date_created: 2019-04-29T08:32:42Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1002/pamm.200510026
intvolume: ' 5'
issue: '1'
language:
- iso: eng
page: 91-92
publication: PAMM
publication_identifier:
issn:
- 1617-7061
publisher: WILEY-VCH Verlag
status: public
title: Analysis of the Forced Vibration of Two Bolted Half-Pipes with Extended Friction
Contacts
type: journal_article
user_id: '55222'
volume: 5
year: '2005'
...
---
_id: '9529'
abstract:
- lang: eng
text: In dieser Arbeit wird ein analytisches Berechnungsverfahren vorgestellt, mit
dem der gesamte Positions- und Orientierungsraum (ErrorWorkspace) ebener Mechanismen
mit spielbehafteten Gelenken kinematisch beschrieben bzw. dargestellt werden kann.
Für die Berechnung wird der gesamte Positions- und Orientierungsraum im Kinematischen
Bildraum dargestellt, wobei auf besondere Merkmale eingegangen wird. Der ErrorWorkspace,
der mit Hilfe des Berechnungsverfahren bestimmt wird, wird an einem Koppelgetriebe,
an einem Filmgreifergetriebe und an einem Double-rocker four-bar mechanism mit
Kurbelantrieb dargestellt und analysiert. ({\copyright} 2005 WILEY-VCH Verlag
GmbH & Co. KGaA, Weinheim)
author:
- first_name: Adolf
full_name: Hofmeister, Adolf
last_name: Hofmeister
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Otto
full_name: Röschel, Otto
last_name: Röschel
citation:
ama: Hofmeister A, Sextro W, Röschel O. Unkontrollierbare Bewegungen ebener Mechanismen
mit Gelenkspiel. PAMM. 2005;5(1):201-202. doi:10.1002/pamm.200510078
apa: Hofmeister, A., Sextro, W., & Röschel, O. (2005). Unkontrollierbare Bewegungen
ebener Mechanismen mit Gelenkspiel. PAMM, 5(1), 201–202. https://doi.org/10.1002/pamm.200510078
bibtex: '@article{Hofmeister_Sextro_Röschel_2005, title={Unkontrollierbare Bewegungen
ebener Mechanismen mit Gelenkspiel}, volume={5}, DOI={10.1002/pamm.200510078},
number={1}, journal={PAMM}, publisher={WILEY-VCH Verlag}, author={Hofmeister,
Adolf and Sextro, Walter and Röschel, Otto}, year={2005}, pages={201–202} }'
chicago: 'Hofmeister, Adolf, Walter Sextro, and Otto Röschel. “Unkontrollierbare
Bewegungen Ebener Mechanismen Mit Gelenkspiel.” PAMM 5, no. 1 (2005): 201–2.
https://doi.org/10.1002/pamm.200510078.'
ieee: A. Hofmeister, W. Sextro, and O. Röschel, “Unkontrollierbare Bewegungen ebener
Mechanismen mit Gelenkspiel,” PAMM, vol. 5, no. 1, pp. 201–202, 2005.
mla: Hofmeister, Adolf, et al. “Unkontrollierbare Bewegungen Ebener Mechanismen
Mit Gelenkspiel.” PAMM, vol. 5, no. 1, WILEY-VCH Verlag, 2005, pp. 201–02,
doi:10.1002/pamm.200510078.
short: A. Hofmeister, W. Sextro, O. Röschel, PAMM 5 (2005) 201–202.
date_created: 2019-04-29T08:39:21Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1002/pamm.200510078
intvolume: ' 5'
issue: '1'
language:
- iso: eng
page: 201-202
publication: PAMM
publication_identifier:
issn:
- 1617-7061
publisher: WILEY-VCH Verlag
status: public
title: Unkontrollierbare Bewegungen ebener Mechanismen mit Gelenkspiel
type: journal_article
user_id: '55222'
volume: 5
year: '2005'
...
---
_id: '8952'
abstract:
- lang: eng
text: In turbomachinery, friction contacts are widely used to reduce dynamic stresses
in turbine blades in order to avoid expensive damages. As a result of energy dissipation
in the friction contacts the blade vibration amplitudes are reduced. In case of
so-called friction dampers, which are pressed on the platforms of the blades by
centrifugal forces, the damping effect can be optimized by varying the damper
mass. This optimization can be done by means of a simulation model applying the
so-called component mode synthesis and the Harmonic Balance Method to reduce computation
time. It is based on the modal description of each substructure. In a real turbine
or compressor blading great differences in the magnitude of the individual blade
amplitudes occur caused by unavoidable mistuning of all system parameters like
contact parameters and natural frequencies of the blades. It may happen that most
of the blades experience only small stresses whereas a few blades experience critical
stresses. Therefore, it is necessary to consider mistuning for all system parameters
to simulate the forced response of bladed disk assemblies with friction contacts.
For a mistuned bladed disk the complete system has to be modeled to calculate
the dynamic response. In practice, usually the standard deviations instead of
the distributions of the system parameters are known. Therefore, Monte-Carlo simulations
are necessary to calculate the forced response of the blades for given mean values
and standard deviations of the system parameters. To reduce the computational
time, an approximate method has been developed and extended for small and moderate
standard deviations of the system parameters to calculate the distribution and
the envelopes of the frequency response functions for statistically varying system
parameters, in the following called statistical mistuning. The approximate method
is based on a sensitivity analysis and the assumption of a Weibull distribution
of the vibration amplitudes of the blades. Both, the approximate method and the
assumption of a Weibull distribution of the vibration amplitudes are validated
by Monte-Carlo simulations. By these investigations the influence of different
arrangements of the system parameters for given mean values and standard deviations
of the vibration amplitudes of the blades can be determined, too. For the present
investigations only a small influence of the arrangement of blades with respect
to their natural frequencies has been observed. On the other hand, an intentional
mistuning of the damper masses and the natural frequencies of the blades in a
systematic way, in the following called systematic mistuning, can be investigated
to reduce the amplitudes of the system. The simulation results of a systematic
mistuning has been validated by a test rig with a rotating bladed disk assembly
with friction dampers. The investigations show a good agreement between the simulations
and the measurements but only a slight decrease of the maximum amplitudes in case
of a systematic mistuning. Copyright {\copyright} 2004 by ASME
author:
- first_name: Florian
full_name: Götting, Florian
last_name: Götting
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Lars
full_name: Panning, Lars
last_name: Panning
- first_name: Karl
full_name: Popp, Karl
last_name: Popp
citation:
ama: 'Götting F, Sextro W, Panning L, Popp K. Systematic mistuning of bladed disk
assemblies with friction contacts. In: Proceedings of ASME TURBO Expo, Power
for Land, Sea, and Air. Vol 6. ; 2004:257-267.'
apa: Götting, F., Sextro, W., Panning, L., & Popp, K. (2004). Systematic mistuning
of bladed disk assemblies with friction contacts. In Proceedings of ASME TURBO
Expo, Power for Land, Sea, and Air (Vol. 6, pp. 257–267).
bibtex: '@inproceedings{Götting_Sextro_Panning_Popp_2004, title={Systematic mistuning
of bladed disk assemblies with friction contacts}, volume={6}, number={GT2004-53310},
booktitle={Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air}, author={Götting,
Florian and Sextro, Walter and Panning, Lars and Popp, Karl}, year={2004}, pages={257–267}
}'
chicago: Götting, Florian, Walter Sextro, Lars Panning, and Karl Popp. “Systematic
Mistuning of Bladed Disk Assemblies with Friction Contacts.” In Proceedings
of ASME TURBO Expo, Power for Land, Sea, and Air, 6:257–67, 2004.
ieee: F. Götting, W. Sextro, L. Panning, and K. Popp, “Systematic mistuning of bladed
disk assemblies with friction contacts,” in Proceedings of ASME TURBO Expo,
Power for Land, Sea, and Air, 2004, vol. 6, no. GT2004-53310, pp. 257–267.
mla: Götting, Florian, et al. “Systematic Mistuning of Bladed Disk Assemblies with
Friction Contacts.” Proceedings of ASME TURBO Expo, Power for Land, Sea, and
Air, vol. 6, no. GT2004-53310, 2004, pp. 257–67.
short: 'F. Götting, W. Sextro, L. Panning, K. Popp, in: Proceedings of ASME TURBO
Expo, Power for Land, Sea, and Air, 2004, pp. 257–267.'
date_created: 2019-04-15T12:07:32Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
intvolume: ' 6'
issue: GT2004-53310
keyword:
- Friction
- Disks
language:
- iso: eng
page: 257-267
publication: Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air
status: public
title: Systematic mistuning of bladed disk assemblies with friction contacts
type: conference
user_id: '55222'
volume: 6
year: '2004'
...
---
_id: '9520'
abstract:
- lang: eng
text: Friction, especially friction of elastomers, can cause acoustic problems like
noise, squeal and comfort drawbacks like vibrations and wear. Therefore, rubber
friction affects the function of many products in technical applications, e.g.
seals, belts and tires. It can be classified according to different physical phenomena
like adhesion, hysteresis, cohesion and viscous friction, see [3]. The topic of
this paper is hysteresis friction of rubber that is caused by the energy dissipation
due to internal material damping during the process of deformation. The deformation
itself occurs during the sliding of a rubber element across the micro-scaled asperities
of a rough surface. In this paper, the sliding process of a rubber element over
real surfaces is simulated in time domain and compared to experiments. ({\^A}{\copyright}
2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
author:
- first_name: Markus
full_name: Lindner, Markus
last_name: Lindner
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Karl
full_name: Popp, Karl
last_name: Popp
citation:
ama: Lindner M, Sextro W, Popp K. Hysteretic Friction of a Sliding Rubber Element.
PAMM. 2004;4(1):101-102. doi:10.1002/pamm.200410032
apa: Lindner, M., Sextro, W., & Popp, K. (2004). Hysteretic Friction of a Sliding
Rubber Element. PAMM, 4(1), 101–102. https://doi.org/10.1002/pamm.200410032
bibtex: '@article{Lindner_Sextro_Popp_2004, title={Hysteretic Friction of a Sliding
Rubber Element}, volume={4}, DOI={10.1002/pamm.200410032},
number={1}, journal={PAMM}, publisher={WILEY-VCH Verlag}, author={Lindner, Markus
and Sextro, Walter and Popp, Karl}, year={2004}, pages={101–102} }'
chicago: 'Lindner, Markus, Walter Sextro, and Karl Popp. “Hysteretic Friction of
a Sliding Rubber Element.” PAMM 4, no. 1 (2004): 101–2. https://doi.org/10.1002/pamm.200410032.'
ieee: M. Lindner, W. Sextro, and K. Popp, “Hysteretic Friction of a Sliding Rubber
Element,” PAMM, vol. 4, no. 1, pp. 101–102, 2004.
mla: Lindner, Markus, et al. “Hysteretic Friction of a Sliding Rubber Element.”
PAMM, vol. 4, no. 1, WILEY-VCH Verlag, 2004, pp. 101–02, doi:10.1002/pamm.200410032.
short: M. Lindner, W. Sextro, K. Popp, PAMM 4 (2004) 101–102.
date_created: 2019-04-29T08:14:26Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1002/pamm.200410032
intvolume: ' 4'
issue: '1'
language:
- iso: eng
page: 101-102
publication: PAMM
publication_identifier:
issn:
- 1617-7061
publisher: WILEY-VCH Verlag
status: public
title: Hysteretic Friction of a Sliding Rubber Element
type: journal_article
user_id: '55222'
volume: 4
year: '2004'
...
---
_id: '9523'
abstract:
- lang: eng
text: During operation, the rotating blades of a gas turbine are subjected to centrifugal
forces as well as fluctuating gas forces, resulting in blade vibrations. In addition
to material damping, aerodynamical and blade root damping, underplatform dampers
are widely used to increase the amount of damping and to decrease blade vibration
amplitudes. The friction forces generated by the relative displacements between
the underplatform damper and the blade platforms provide a significant amount
of energy dissipation. In practice, a number of different underplatform damper
designs are applied. Basically, these are wedge dampers with flat contact areas,
cylindrical dampers with curved surfaces or asymmetrical dampers with both flat
contact surfaces on one side and curved contact surfaces on the other. The latter
damper type combines the advantages of both the wedge and the cylindrical damper
by preventing the damper from pure rolling on the one hand as it has been observed
for cylindrical dampers and on the other hand, avoiding a diverged plane area
contact in case of a wedge damper, causing a damper lift-off. This paper will
focus on the investigation of cylindrical and asymmetrical underplatform dampers.
A comparison between measurements of rotating assemblies in Siemens PG gas turbines
(V84.2, V64.3A and V94.3A(2)) under test and real operating conditions with cylindrical
and asymmetrical underplatform dampers and the predictions of the developed theoretical
model are presented. Special attention is paid to the frequency shift due to the
application of an underplatform damper, since in particular for stationary gas
turbines, in addition to the amplitude reduction, the accurate prediction of the
resonance frequency is of major interest. Copyright {\copyright} 2004 by ASME
author:
- first_name: Lars
full_name: Panning, Lars
last_name: Panning
- first_name: Karl
full_name: Popp, Karl
last_name: Popp
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Florian
full_name: Götting, Florian
last_name: Götting
citation:
ama: 'Panning L, Popp K, Sextro W, Götting F. Asymmetrical Underplatform Dampers
in Gas Turbine Bladings: Theory and Application. In: Proceedings of ASME TURBO
Expo, Power for Land, Sea, and Air. Vol 6. Vienna, Austria; 2004:269-280.
doi:10.1115/GT2004-53316'
apa: 'Panning, L., Popp, K., Sextro, W., & Götting, F. (2004). Asymmetrical
Underplatform Dampers in Gas Turbine Bladings: Theory and Application. In Proceedings
of ASME TURBO Expo, Power for Land, Sea, and Air (Vol. 6, pp. 269–280). Vienna,
Austria. https://doi.org/10.1115/GT2004-53316'
bibtex: '@inproceedings{Panning_Popp_Sextro_Götting_2004, place={Vienna, Austria},
title={Asymmetrical Underplatform Dampers in Gas Turbine Bladings: Theory and
Application}, volume={6}, DOI={10.1115/GT2004-53316},
number={GT2004-53316}, booktitle={Proceedings of ASME TURBO Expo, Power for Land,
Sea, and Air}, author={Panning, Lars and Popp, Karl and Sextro, Walter and Götting,
Florian}, year={2004}, pages={269–280} }'
chicago: 'Panning, Lars, Karl Popp, Walter Sextro, and Florian Götting. “Asymmetrical
Underplatform Dampers in Gas Turbine Bladings: Theory and Application.” In Proceedings
of ASME TURBO Expo, Power for Land, Sea, and Air, 6:269–80. Vienna, Austria,
2004. https://doi.org/10.1115/GT2004-53316.'
ieee: 'L. Panning, K. Popp, W. Sextro, and F. Götting, “Asymmetrical Underplatform
Dampers in Gas Turbine Bladings: Theory and Application,” in Proceedings of
ASME TURBO Expo, Power for Land, Sea, and Air, 2004, vol. 6, no. GT2004-53316,
pp. 269–280.'
mla: 'Panning, Lars, et al. “Asymmetrical Underplatform Dampers in Gas Turbine Bladings:
Theory and Application.” Proceedings of ASME TURBO Expo, Power for Land, Sea,
and Air, vol. 6, no. GT2004-53316, 2004, pp. 269–80, doi:10.1115/GT2004-53316.'
short: 'L. Panning, K. Popp, W. Sextro, F. Götting, in: Proceedings of ASME TURBO
Expo, Power for Land, Sea, and Air, Vienna, Austria, 2004, pp. 269–280.'
date_created: 2019-04-29T08:19:15Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1115/GT2004-53316
intvolume: ' 6'
issue: GT2004-53316
keyword:
- Dampers
- Gas turbines
language:
- iso: eng
page: 269-280
place: Vienna, Austria
publication: Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air
status: public
title: 'Asymmetrical Underplatform Dampers in Gas Turbine Bladings: Theory and Application'
type: conference
user_id: '55222'
volume: 6
year: '2004'
...
---
_id: '8933'
author:
- first_name: Florian
full_name: Götting, Florian
last_name: Götting
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Lars
full_name: Panning, Lars
last_name: Panning
- first_name: Karl
full_name: Popp, Karl
last_name: Popp
citation:
ama: 'Götting F, Sextro W, Panning L, Popp K. Schwingungsverhalten von verstimmten
Beschaufelungen mit Reibelementen. In: Irretier H, Nordmann R, Springer H, eds.
Schwingungen in Rotierenden Maschinen VI SIRM, Referate Der Tagung in Darmstadt.
Vieweg-Verlag; 2003:201-210.'
apa: Götting, F., Sextro, W., Panning, L., & Popp, K. (2003). Schwingungsverhalten
von verstimmten Beschaufelungen mit Reibelementen. In H. Irretier , R. Nordmann,
& H. Springer (Eds.), Schwingungen in rotierenden Maschinen VI SIRM, Referate
der Tagung in Darmstadt (pp. 201–210). Vieweg-Verlag.
bibtex: '@inproceedings{Götting_Sextro_Panning_Popp_2003, title={Schwingungsverhalten
von verstimmten Beschaufelungen mit Reibelementen}, booktitle={Schwingungen in
rotierenden Maschinen VI SIRM, Referate der Tagung in Darmstadt}, publisher={Vieweg-Verlag},
author={Götting, Florian and Sextro, Walter and Panning, Lars and Popp, Karl},
editor={Irretier , H and Nordmann, R and Springer, HEditors}, year={2003}, pages={201–210}
}'
chicago: Götting, Florian, Walter Sextro, Lars Panning, and Karl Popp. “Schwingungsverhalten
von Verstimmten Beschaufelungen Mit Reibelementen.” In Schwingungen in Rotierenden
Maschinen VI SIRM, Referate Der Tagung in Darmstadt, edited by H Irretier
, R Nordmann, and H Springer, 201–10. Vieweg-Verlag, 2003.
ieee: F. Götting, W. Sextro, L. Panning, and K. Popp, “Schwingungsverhalten von
verstimmten Beschaufelungen mit Reibelementen,” in Schwingungen in rotierenden
Maschinen VI SIRM, Referate der Tagung in Darmstadt, 2003, pp. 201–210.
mla: Götting, Florian, et al. “Schwingungsverhalten von Verstimmten Beschaufelungen
Mit Reibelementen.” Schwingungen in Rotierenden Maschinen VI SIRM, Referate
Der Tagung in Darmstadt, edited by H Irretier et al., Vieweg-Verlag, 2003,
pp. 201–10.
short: 'F. Götting, W. Sextro, L. Panning, K. Popp, in: H. Irretier , R. Nordmann,
H. Springer (Eds.), Schwingungen in Rotierenden Maschinen VI SIRM, Referate Der
Tagung in Darmstadt, Vieweg-Verlag, 2003, pp. 201–210.'
date_created: 2019-04-15T10:29:52Z
date_updated: 2022-01-06T07:04:05Z
department:
- _id: '151'
editor:
- first_name: H
full_name: Irretier , H
last_name: 'Irretier '
- first_name: R
full_name: Nordmann, R
last_name: Nordmann
- first_name: H
full_name: Springer, H
last_name: Springer
language:
- iso: eng
page: 201-210
publication: Schwingungen in rotierenden Maschinen VI SIRM, Referate der Tagung in
Darmstadt
publisher: Vieweg-Verlag
status: public
title: Schwingungsverhalten von verstimmten Beschaufelungen mit Reibelementen
type: conference
user_id: '55222'
year: '2003'
...