This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Vehicle Dynamic Simulations Based on Flexible and Rigid Multibody Models
Technical Paper
2000-01-0114
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
This paper presents the results of a study using multibody models of a vehicle for ride and handling simulations. The aim of this study is to investigate chassis flexibility simulation techniques. For this purpose, three vehicle models are considered: one with a finite element description of the chassis in nodal coordinates; one with a finite element description of the chassis in modal coordinates; and one with a rigid body model of the chassis.
In the paper two typical vehicle test operations—sinusoidal depression and pulse steering are considered. Through these simulations, the dynamic effects of the chassis flexibility are monitored for the ride handling analysis. Although the elastic deformation of the chassis is small, the simulation results show a significant difference in the system response when chassis flexibility is considered in the model. In the models where the modal coordinates are used, even a truncated set of modes results into significantly different responses from the rigid chassis model.
Recommended Content
Authors
Citation
Yi, T., "Vehicle Dynamic Simulations Based on Flexible and Rigid Multibody Models," SAE Technical Paper 2000-01-0114, 2000, https://doi.org/10.4271/2000-01-0114.Also In
Brake Technology: ABS/TCS Systems, NVH, and Foundation Brakes
Number: SP-1537; Published: 2000-03-06
Number: SP-1537; Published: 2000-03-06
References
- Nikravesh, P. E. 1988 Computer Aided Analysis of Mechanical Systems Prentice-Hall Englewood Cliffs, N.J.
- Schiehlen, W. 1990 Multibody Systems Handbook Springer-Verlag Berlin Heidelberg
- Shabana, A.A. 1989 Dynamics of Multibody System Wiley New York
- Nikravesh, P. E. Ambrosio, J. A. C. 1992 Automatic Construction of Equations of Motion for Rigid-Flexible Multibody Systems, AMD-Vol. 141/DSC-Vol. 37 Dynamics of Flexible Multibody Systems: Theory and Experiment, ASME
- Yi Tong Y., 1996 Structural Identification Based On Vibration Data For Flexible and Rigid Multibody System Dynamics, Ph.D. Dissertation Dept. of Aerospace and Mechanical Engineering, University of Arizona Tucson, AZ 85721
- ABAQUS, 1995 Theory and User’s Manual, Hibbit, Karlson, and Sorensen, Inc.
- MBOSS, 1996 Multibody System Simulation User Manual, CAE Laboratory, Dept. of Aerospace & Mechanical Engineering, University of Arizona Tucson, AZ 85721.
- Kim, S. S. Vanderploeg, M.J. 1986 A General and Efficient Method for Dynamic Analysis of Mechanical Systems Using Velocity Transformation ASME Journal of Mechanisms, Transmissions & Automation in Design 108 2 176 182
- Nikravesh, P.E. Gim, G. 1989 Systematic Construction of the Equations of Motion for Multibody Systems Containing Closed Kinematic Loop ASME Design Conference
- Orlandea, N. Chace, M.A. Calahan, D.A. 1977 A Sparsity-Oriented Approach to Dynamic Analysis and Design of Mechanical Systems, Part I and II ASME Journal of Engineering for Industry, 99 773 784
- Wehage, R. A. Haug, E. J. 1982 Generalized Coordinate Partitioning of Dimension Reduction in Analysis of Constrained Dynamic System ASME Journal of Mechanical Design, 104 247 255
- Yi Tong Y Nikravesh, Parviz E. 1997 Prediction of Modal Characteristics Due The Design Change Proceedings of DETC 97/VIB-4190 ASME
- Identification of Free-Free Modes from Constrained Vibration Data for Flexible Multibody Models Multibody Dynamics and Vibration, Mechnical Vibration and Noise, ASME Technical Design Conference Las Vegas Nevada, Sept. 12-15 1999
- Gim, G. 1988 Vehicle Dynamic Simulation with a Comprehensive Model for Pneumatic Tires Ph. D. Dissertation, University of Arizona Tucson, AZ 85721
- Wong, J. Y. 1978 Theory of Ground Vehicle A Wiley-Interscience Publication, John Wiley & Sons Inc. New York
- Craig, R. R. Chang, C. J. 1977 On the Use of Attachment Modes in Substructure Coupling for Dynamic Analysis AIAA/ASME 18 th Structures, Structural Dynamics & Materials Conference 89 99