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Mathematical Modeling and Parameters Estimation of Car Crash Using Eigensystem Realization Algorithm and Curve-Fitting Approaches

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  • Bernard B. Munyazikwiye
  • Hamid Reza Karimi
  • Kjell Gunnar Robbersmyr

Abstract

An eigensystem realization algorithm (ERA) approach for estimating the structural system matrices is proposed in this paper using the measurements of acceleration data available from the real crash test. A mathematical model that represents the real vehicle frontal crash scenario is presented. The model’s structure is a double-spring-mass-damper system, whereby the front mass represents the vehicle-chassis and the rear mass represents the passenger compartment. The physical parameters of the model are estimated using curve-fitting approach, and the estimated state system matrices are estimated by using the ERA approach. The model is validated by comparing the results from the model with those from the real crash test.

Suggested Citation

  • Bernard B. Munyazikwiye & Hamid Reza Karimi & Kjell Gunnar Robbersmyr, 2013. "Mathematical Modeling and Parameters Estimation of Car Crash Using Eigensystem Realization Algorithm and Curve-Fitting Approaches," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-13, November.
    • Handle: RePEc:hin:jnlmpe:262196
    DOI: 10.1155/2013/262196
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