uhlar
Dr.-Ing. Stefan Uhlar |
|
Arbeitsgebiete:
Mechanische
Zeitintegratoren für die Mehrkörperdynamik
Betreute Studien-, Diplom- u. Masterarbeiten:
2009:
- Kersten, Sebastian: "Vergleich und Bewertung von
Verlust- und Reibungsquellen im Riementrieb mit Hilfe
analytischer und numerischer Methoden sowie Vorschläge zur
CO2 Optimierung der Nebenaggregatantriebe", (DA) -
Zusammenarbeit Muhr & Bender KG
- Erdmann, Thomas: "Inverse Dynamik voll- und unteraktuierter Mehrkörpersysteme", (SA)
2008:
- Hörnig, Tobias: "Kinematische Auslegung der Radführung eines FSAE-Rennwagens und Erstellung einer Oberfläche zur parametrisierten Berechnung der Fahrwerk-Gelenkkräfte", (SA)
- Dolle, Roland: "MKS-Simulation mit SIMPACK und einer Energy-Momentum Methode", (SA)
- Kersten, Sebastian: "Parametrisierte Auslegung der Fahrwerksstabilisatoren eines Rennwagens im Rahmen des Formula Student Projektes", (SA)
- Anders, Denis: "Zeitintegrationsverfahren für die flexible Mehrkörperdynamik", (MA)
- Kersten, Sebastian: "Visualisierung in der Mehrkörpersimulation", (SA)
2007:
- Schmidt, Markus: "Simulation eines vollaktuierten Roboters mit nichtholonomen Zwangsbedingungen", (SA)
- Waffenschmidt, Tobias: "Vergleich des kommerziellen MKS-Tools MSC.ADAMS mit einer Energy-Momentum Methode", (SA)
2006:
- Minor, Thomas: "Vergleich von zwei Integrationsmethoden für die Starrkörperdynamik", (DA)
- Betz, Bianca: "Verwendung von SHAKE und RATTLE zur numerischen Integration in der Starrkörperdynamik", (SA)
- Müller, Melanie: "Verwendung von Eulerparametern zur numerischen Integration in der Starrkörperdynamik", (SA)
Publikationen:
- P. Betsch, S. Uhlar
-
Energy-momentum conserving integration of multibody
dynamics
Multibody System Dynamics, 17:243-289, 2007
- R. Mohr, S. Uhlar, A. Menzel and P. Steinmann
-
Time-FE methods for the nonlinear dynamics of constrained
inelastic systems
In IUTAM Symposium on Theoretical, Modelling and Computational Aspects of Inelastic Media, IUTAM Bookseries, Vol. 11, Springer, ISBN 978-1-4020-9089-9, 2008
- S. Uhlar, P. Betsch
-
Conserving integrators for parallel manipulators
Parallel Manipulators, 75-108, I-Tech Education and Publishing, ISBN 978-3-902613-20-2
- S. Uhlar, P. Betsch
-
A rotationless formulation of multibody dynamics: Modeling
of screw joints and incorporation of control
constraints
Multibody System Dynamics, DOI: 10.1007/s11044-009-9149-3
- S. Uhlar, P. Betsch
-
Energy-consistent integration of multibody systems with
friction
Journal of Mechanical Science and Technology, vol. 23, no. 4, pp.901-909, 2009
- P. Betsch, M. Quasem, S. Uhlar
-
Numerical integration of discrete mechanical systems with
mixed holonomic and control constraints
Journal of Mechanical Science and Technology, vol. 23, no. 4, pp.1012-1018, 2009
- P. Betsch, C. Hesch, N. Sänger and S. Uhlar
- Variational
integrators and energy-momentum schemes for flexible
multibody dynamics
J. Comput. Nonlinear Dynam.,Volume 5, Issue 3, 2010
- S. Uhlar, P. Betsch
- Mechanical
integrators for the inverse dynamics of dissipative
multibody systems
TCSME, Volume 33, Issue 4, 2009
- S. Uhlar, P. Betsch
- On the
derivation of energy consistent time stepping schemes for
friction afflicted multibody systems
Computers & Structures, Volume 88, Issues 11-12, June 2010, Pages 737-754
- S. Uhlar
-
Energy Consistent Time-Integration of Hybrid Multibody
Systems
Dissertation, Fachbereich Maschinenbau, Universität Siegen, 2009
Proceedings:
- S. Uhlar, P. Betsch
- Energy consistent time
integration of planar multibody systems
Proc. Appl. Math. Mech, 6, 119-120 (2006)
- S. Uhlar, P. Betsch
-
On the rotationless formulation of multibody dynamics and
its conserving numerical integration
ECCOMAS Thematic Conference, Multibody Dynamics, 2007
- P. Betsch, S. Uhlar, M. Quasem
-
On the incorporation of servo constraints into a
rotationless formulation of flexible multibody
dynamics
ECCOMAS Thematic Conference, Multibody Dynamics, 2007
- S. Uhlar, P. Betsch
-
Energy-momentum conserving integration of parallel
manipulators
Proc. Appl. Math. Mech, DOI: 10.1002/pamm.200700869
- M. Quasem, P. Betsch, S. Uhlar
-
Numerical integration of multi-body dynamics employing
control constraints
Proc. Appl. Math. Mech, submitted for publication
- S. Uhlar, P. Betsch
-
A uniform discretization approach to flexible multibody
systems
Proc. Appl. Math. Mech, DOI: 10.1002/pamm.200810147
- M. Quasem, S. Uhlar, P. Betsch
-
Numerical integration of differential-algebraic equations
with mixed holonomic and control constraints
Proc. Appl. Math. Mech, DOI: 10.1002/pamm.200810129
- S. Uhlar, P. Betsch
-
Energy-consistent integration of multibody systems with
friction
In Proccedings of the 4th Asian Conference on Multibody Dynamics, Jeju, 20-23.08.2008
- P. Betsch, M. Quasem, S. Uhlar
-
On the incorporation of servo constraints into a
rotationless formulation of flexible multibody dynamics
In Proccedings of the 4th Asian Conference on Multibody Dynamics, Jeju, 20-23.08.2008
- M. Quasem, S. Uhlar, P. Betsch
-
Inverse dynamics of underactuated multibody systems
Proc. Appl. Math. Mech, submitted for publication
- S. Uhlar, P. Betsch
-
Mechanical integrators for the inverse dynamics of
dissipative multibody systems
Proceedings of the 2009 CCToMM Symposium on Mechanisms, Machines, and Mechatronics, Quebec, CANADA, 2009
- S. Uhlar, P. Betsch
- Energy consistent time integration of non-conservative
hybrid multibody systems
Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, San Diego CA, USA, 2009
- S. Uhlar, P. Betsch
-
A unified modeling approach for hybrid multibody systems
applying energy-momentum consistent time integration
Proceedings of the ECCOMAS Thematic Conference of Multibody Dynamics, Warsaw, Poland, 2009
- P. Betsch, S. Uhlar, M. Quasem
-
Structure-Preserving Numerical Integration of Mechanical
Systems with Mixed Holonomic and Control Constraints
Proceedings of the ECCOMAS Thematic Conference of Multibody Dynamics, Warsaw, Poland, 2009
Vorträge:
- Energy consistent time
integration of planar multibody systems, DFG's International Research Training
Group (IRTG), invited talk, TU-Kaiserslautern,
2006
- Energy consistent time integration of planar multibody systems, GAMM Annual Meeting, Berlin, 2006
-
On the rotationless formulation of multibody dynamics and
its conserving numerical integration, DFG's International Research Training
Group (IRTG), invited talk, TU-Kaiserslautern,
2007
- On the rotationless formulation of multibody dynamics and its conserving numerical integration, ECCOMAS Thematic Conference, Multibody Dynamics, Milano, 2007
-
Energy-momentum conserving integration of parallel
manipulators, GAMM
Annual Meeting, Zürich, 2007
-
A uniform discretization approach to flexible multibody
systems, GAMM Annual
Meeting, Bremen, 2008
-
Mechanical time-integrators for hybrid multibody
systems, Lehrstuhl
für Technische Mechanik, invited talk, Universität
Erlangen-Nürnberg, 2008
-
Mechanical time-integrators for hybrid multibody
systems, Division of
Solid Mechanics, invited talk, Lund University,
2008
-
Energy consistent integrators for dissipative multibody
systems, World
Congress on Computational Mechanics, Venice,
2008
-
Energy-consistent integration of multibody systems with
friction, 4th Asian
Conference on Multibody Dynamics, Jeju,
2008
-
On the modeling of dissipation and nonholonomic constraints
in multibody systems, Lehrstuhl für Mechanik, invited talk,
TU-Dortmund, 2008
- Energy Consistent Time-Integration of Hybrid Multibody
Systems, Institut für
Technische und Numerische Mechanik, invited talk,
Universität Stuttgart, 2009
-
Mechanical integrators for the inverse dynamics of
dissipative multibody systems, CCToMM³ Conference, Quebec, Canada,
2009
-
A Unified Modeling Approach for Hybrid Multibody Systems
Applying Energy-Momentum Consistent Time Integration,
ECCOMAS Thematic
Conference of Multibody Dynamics, Warsaw, Poland,
2009
- Structure-Preserving Numerical Integration of
Mechanical Systems with Mixed Holonomic and Control
Constraints, ECCOMAS
Thematic Conference of Multibody Dynamics, Warsaw, Poland,
2009
-
Energy Consistent Time Integration of Non-Conservative
Hybrid Multibody Systems, ASME 2009 International Design
Engineering Technical Conferences & Computers and
Information in Engineering Conference, San Diego CA, USA,
2009
-
Energie-konsistente Zeitintegration hybrider
Mehrkörpersysteme, Promotionsvortrag, Universität
Siegen, 23.10.2009
Poster:
