Numerical verification of vibration analysis using state transition matrix hybridizing experiment and finite element analysis

Abstract

The finite element method is widely used to predict mechanical vibration for the purpose of improving the performance of mechanical products. However, in complex structures such as automobiles, much effort is required to make the accurately entire system model. Therefore, in this research, we propose a method to identify the state transition matrix of the entire system by hybridizing the state transition matrix obtained by finite element modeling only the target component and the state transition matrix identified from the experimental data. In this paper, as a numerical verification, we apply the proposed method to a beam model whether it is possible to predict the vibration and the vibration change due to structural modification. 岐阜大学大学院 Graduate School of Gifu University