Identification of Non-Ideal Structural Boundary Conditions by Using Spectral Element Method

초록

Due to the apparent advantages of SEM, it may be reasonable to use the spectral element model, instead of finite element model, to improve the identification of non-ideal structural boundary. Because it is not always easy to extract accurate modal parameters from experiments, it will be convenient to determine the non-ideal boundary conditions directly from measured frequency response functions (FRFs), instead of modal parameters. Hence, this paper introduces a new approach to identify non-ideal structural boundary conditions for the spectral element beam model by using measured FRFs.