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Use of support vector regression in structural optimization: Application to vehicle crashworthiness design

Author

Listed:
  • Zhu, Ping
  • Pan, Feng
  • Chen, Wei
  • Zhang, Siliang

Abstract

Metamodel is widely used to deal with analysis and optimization of complex system. Structural optimization related to crashworthiness is of particular importance to automotive industry nowadays, which involves highly nonlinear characteristics with material and structural parameters. This paper presents two industrial cases using support vector regression (SVR) for vehicle crashworthiness design. The first application aims to improve roof crush resistance force, and the other is lightweight design of vehicle front end structure subject to frontal crash, where SVR is utilized to construct crashworthiness responses. The use of multiple instances of SVR with different kernel types and hyper-parameters simultaneously and select the best accurate one for subsequent optimization is proposed. The case studies present the successful use of SVR for structural crashworthiness design. It is also demonstrated that SVR is a promising alternative for approximating highly nonlinear crash problems, showing a successfully alternative for metamodel-based design optimization in practice.

Suggested Citation

  • Zhu, Ping & Pan, Feng & Chen, Wei & Zhang, Siliang, 2012. "Use of support vector regression in structural optimization: Application to vehicle crashworthiness design," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 86(C), pages 21-31.
    • Handle: RePEc:eee:matcom:v:86:y:2012:i:c:p:21-31
    DOI: 10.1016/j.matcom.2011.11.008
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    References listed on IDEAS

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    1. Lu, Zhao & Sun, Jing & Butts, Kenneth R., 2009. "Linear programming support vector regression with wavelet kernel: A new approach to nonlinear dynamical systems identification," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 79(7), pages 2051-2063.
    2. Kim, Jong-Eun & Rao, Vinay N. & Koomullil, Roy P. & Ross, Doug H. & Soni, Bharat K. & Shih, Alan M., 2009. "Development of an efficient aerodynamic shape optimization framework," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 79(8), pages 2373-2384.
    3. Dellino, G. & Lino, P. & Meloni, C. & Rizzo, A., 2009. "Kriging metamodel management in the design optimization of a CNG injection system," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 79(8), pages 2345-2360.
    4. Giampiero Carpentieri & Michel J.L. Tooren, 2009. "A Framework for Aerodynamic Shape Optimization," Springer Optimization and Its Applications, in: Variational Analysis and Aerospace Engineering, chapter 0, pages 91-106, Springer.
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