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Fully-coupled Multi-Body Dynamics and Nonlinear Structural Analysis Applied to Automotive Dynamic Analysis
Technical Paper
2010-01-0948
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Both multi-body dynamics and finite element tools are widely and
effectively used in automotive design. These tools have typically
been augmented with numerous custom extensions which greatly
enhance their utility. The capability of such tools has
considerable overlap in such areas as mechanical joints, contact
detection, and, of most interest here, linear (modal) structural
analysis. By contrast, nonlinear structural effects, particularly
large deformations, remain the domain of the nonlinear structural
analysis tools. Such effects cannot easily be included when using
multi-body dynamics analysis tools.
Recently, a novel approach has been described through which
existing, mature analysis codes can be combined into a single
analysis tool that continues to leverage all of the validation,
existing models and extensions of the component analysis codes. As
a demonstration of this approach, MSC's MD Adams™ (Adams), a
multi-body dynamics code, and MD.Nastran/Sol(400)™ (Nastran), a
nonlinear structural analysis code, have been integrated.
This paper describes the use of such an integrated analysis tool
to perform a dynamic analysis of a twist-beam type automotive rear
suspension. The results will be compared to those generated from
the same model using only the existing linear (modal) structural
analysis capability of the multi-body dynamics analysis code.
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Authors
Topic
Citation
Rennich, S., "Fully-coupled Multi-Body Dynamics and Nonlinear Structural Analysis Applied to Automotive Dynamic Analysis," SAE Technical Paper 2010-01-0948, 2010, https://doi.org/10.4271/2010-01-0948.Also In
Optimization, Optical Measurement Nondestructive Testing Techniques, 2010
Number: SP-2295; Published: 2010-04-13
Number: SP-2295; Published: 2010-04-13
References
- Rennich, S. C. Zeilonka, M. G. “A General Approach for the Coupling of Independent Analysis Components: Applied to Multi Body Dynamics and Nonlinear Finite Elements,” NAFEMS World Congress 2009 Crete, Greece June 16th-18th 2009
- Elliott, A.S. Slattengren, J. Buijk, A. “Fully Coupled Fluid/Mechanical Response Prediction for Truck-Mounted Tank Sloshing Using Cosimulation of MSC.ADAMS® and MSC.Dytran®,” SAE Technical Paper 2006-01-0932 2006
- Craig, R. R. Jr. Bampton, M. C. C. “Coupling of Substructures for Dynamic Analyses,” AIAA Journal 3 7 1313 1319 1968
- “Marc 2008 r1 Volume A: Theory and User Information” MSC Software Corp. http://www.scribd.com/doc/16360224/Marc-2008-r1-Volume-A-Theory-and-User-Information 2010