This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Design Optimization of Vehicle Structures for Crashworthiness via Equivalent Mechanism Approximations
Technical Paper
2004-01-1731
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A new method for crashworthiness optimization of vehicle structures is presented, where an early design exploration is done by the optimization of an equivalent mechanism approximating a vehicle structure. An equivalent mechanism (EM) is a network of rigid bodies connected by prismatic and revolute joints with special nonlinear springs. These springs are designed to mimic the force-displacement characteristics of thin-walled beams often found in the vehicle body structures. A computer software is implemented that allows the designer to quickly construct an equivalent mechanism model of a structure using a graphical user interface (GUI) to optimize the model for given objectives prior to final tuning using finite element (FE) models. A case study of a vehicle front substructure consisting of mid and lower rails is presented, which demonstrates that the new approach can obtain a better design with less computational resources than the direct optimization of a FE model.
Recommended Content
Citation
Hamza, K. and Saitou, K., "Design Optimization of Vehicle Structures for Crashworthiness via Equivalent Mechanism Approximations," SAE Technical Paper 2004-01-1731, 2004, https://doi.org/10.4271/2004-01-1731.Also In
References
- Mayer R. R. Kikuchi N. Scott R. A. 1996 “Application of Topological Optimization Techniques to Structural Crashworthiness,” International Journal for Numerical Methods in Engineering 39 1383 1403
- Mayer R. R. 2001 “Application of Topological Optimization Techniques to Automotive Structural Design,” Proceedings of the ASME 2001 International Mechanical Engineering Congress and Exposition November 11-16 New York, NY IMECE 2001 / AMD 25458
- Luo J. Gea H. C. Yang R. J. 2000 “Topology Optimization for Crush Design,” Proceedings of the 8th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization September 6-8 Long Beach, CA AIAA Paper Number: AIAA-2000-4770
- Mayer R. R. Maurer D. Bottcher C. 2000 “Application of Topological Optimization Program to the Danner Test Simulation,” Proceedings of the ASME 2000 Design Engineering and Technical Conference September 10-13 Baltimore, Maryland DETC 2000 / DAC 14292
- Gea H. C. Luo J. 2001 “Design for Energy Absorption: A Topology Optimization Approach,” Proceedings of the ASME 2001 Design Engineering and Technical Conference September 9-12 Pittsburgh, PA DETC 2001 / DAC 21060
- Soto C. A. 2001 “Optimal Structural Topology Design for Energy Absorption: A Heurtistic Approach,” Proceedings of the ASME 2001 Design Engineering and Technical Conference September 9-12 Pittsburgh, PA DETC 2001 / DAC 21126
- Soto C. A. 2001 “Structural Topology for Crashworthiness Design by Matching Plastic Strain and Stress Levels,” Proceedings of the ASME 2001 International Mechanical Engineering Congress and Exposition November 11-16 New York, NY IMECE 2001 / AMD 25455
- Soto C. A. Diaz A. R. 1999 “Basic Models for Topology Design Optimization in Crashworthiness Problems,” Proceedings of the ASME 1999 Design Engineering and Technical Conference September 12-15 Las Vegas, Nevada DETC 99 / DAC 8591
- Yang R. J. Gu L. Tho C. H. Sobieski J. 2001 “Multidisciplinary Optimization of a Full Vehicle with High Performance Computing,” Proceedings of the American Institute of Aeronautics and Astronautics 2001 Conference 688 698 AIAA Paper Number: AIAA-2001-1273
- Mase T. Wang J. T. Mayer R. Bonello K. Pachon L. 1999 “A Virtual Bumper Test Laboratory for FMVR 581,” Proceedings of the ASME 1999 Design Engineering and Technical Conference September 12-15 Las Vegas, Nevada DETC 99 / DAC 8572
- Han J. Yamada K. 2000 “Maximization of the Crushing Energy Absorption of the S-Shaped Thin-Walled Square Tube,” Proceedings of the 8th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization September 6-8 Long Beach, CA AIAA Paper Number: AIAA-2000-4750
- Kurtaran H. Omar T. Eskandarian A. 2001 “Crashworthiness Design Optimization of Energy-Absorbing Rails for the Automotive Industry,” Proceedings of the ASME 2001 International Mechanical Engineering Congress and Exposition November 11-16 New York, NY IMECE 2001 / AMD 25452
- Chen S. 2001 “An Approach for Impact Structure Optimization using the Robust Genetic Algorithm,” Finite Elements in Analysis and Design 37 431 446
- Yang R. J. Tho C. H. Wu C. C. Johnson D. Cheng J. 1999 “A Numerical Study of Crash Optimization,” Proceedings of the ASME 1999 Design Engineering and Technical Conference September 12-15 Las Vegas, Nevada DETC 99 / DAC 8590
- Shi Q. Hagiwara I. Takashima F. 1999 “The Most Probable Optimal Design Method for Global Optimization,” Proceedings of the ASME 1999 Design Engineering and Technical Conference September 12-15 Las Vegas, Nevada DETC 99 / DAC 8635
- Yang R. J. Gu L. Liaw L. Gearhart C. Tho C. H. Liu X. Wang B. P. 2000 “Approximations for Safety Optimization of Large Systems,” Proceedings of the ASME 2000 Design Engineering and Technical Conference September 10-13 Baltimore, Maryland DETC 2000 / DAC 14245
- Yang R. J. Wang N. Tho C. H. Bobineau J. P. Wang B. P. 2001 “Metamodeling Development for Vehicle Frontal Impact Simulation,” Proceedings of the ASME 2001 Design Engineering and Technical Conference September 9-12 Pittsburgh, PA DETC 2001 / DAC 21012
- Redhe M. Nilsson L. 2002 “Using Space Mapping and Surrogate Models to Optimize Vehicle Crashworthiness Design,” Proceedings of the 9th AIAA/ISSMO Symposium on Multidisciplinary Analysis and Optimization September 4-6 Atlanta, Georgia AIAA Paper Number: AIAA-2002-5536
- Bennett J. A. Lust R. V. Wang J.T. 1991 “Optimal Design Strategies in Crashworthiness and Occupant Protection,” ASME AMD-Vol. 126 51 66
- Chellappa S. Diaz A. “A Multi-Resolution Reduction Scheme for Structural Design,” Proceeding of the NSF 2002 Conference January 2002 98 107
- Ignatovich C. L. Diaz A. 2002 “Physical Surrogates in Design Optimization for Enhanced Crashworthiness,” Proceedings of the 9th AIAA/ISSMO Symposium on Multidisciplinary Analysis and Optimization September 4-6 Atlanta, Georgia AIAA Paper Number: AIAA-2002-5537
- Jaskulski J. Mekhilef M. 1999 “Side Impact Crash Modeling: Development of a Numerical Identification Tool using Optimization Methods,” Proceedings of the ASME 1999 Design Engineering and Technical Conference September 12-15 Las Vegas, Nevada DETC 99 / DAC 8698
- Gearhart C. 1999 “Application of Wavelet Based Signature Analysis in Designing for Crashworthiness,” Proceedings of the ASME 1999 Design Engineering and Technical Conference September 12-15 Las Vegas, Nevada DETC 99 / DAC 8592
- Saha N. K. Bhojan R. 2001 “Influence of Chassis and Driveline Components in Vehicle Frontal Crash,” Proceedings of the ASME 2001 International Mechanical Engineering Congress and Exposition November 11-16 New York, NY IMECE 2001 / AMD 25434
- Hamza K. Saitou K. 2003 “Design Optimization of Vehicle Structures for Crashworthiness using Equivalent Mechanism Approximations,” Proceedings of the ASME 2003 Design Engineering and Technical Conference, September 2-6 Chicago, IL DETC 03 / DAC 48751
- Hamza K. Saitou K. 2004 “Crashworthiness Design using Meta-Models for Approximating the Response of Structural Members,” Proceedings of the 8th Cairo University Mechanical Design and Production Conference January 4-6 Cairo, Egypt
- Koanti R. P. Caliskan A. G. 2001 “Stochastic Applications in Crashworthiness,” Proceedings of the ASME 2001 International Mechanical Engineering Congress and Exposition November 11-16 New York, NY IMECE 2001 / AMD 25433
- MathWorks 2001 MatLab 6 Documentation MathWorks Inc. Natick, MA, USA
- Goldberg D. 1989 “Genetic Algorithms in Search, Optimization and Machine Learning,” Addison-Wesley Inc.
- Michalewiz Z. Fogel D. B. 2000 “How to Solve it: Modern Heuristics,” Springer-Verlag Berlin Heidelberg, New York
- Hamza K. Saitou K. 2004 “Crash mode analysis of vehicle structures based on equivalent mechanism approximations,” Tools and Methods of Competitive Engineering TMCE April 13-17 Lausanne, Switzerland