異方性をもつ任意境界条件の平板構造物の簡易な弾性振動解析手法

抄録

The body of a railway vehicle can be regarded as a combination of thin plate structures. As a simple vibration analysis method that can handle elastic vibration of such a structure, vibration analysis method of thin anisotropic plate and arbitrary boundary conditions is proposed. In this report, the formulation based on the energy principle is performed, and vibration measurement is conducted with a structure simulating the underframe of a railway vehicle at 1/10 scale. Numerical calculation is carried out using a orthotropic plate as an analysis model. From the results of measured and numerical calculation, the validity of the proposed method was examined by comparing the mode shape and the natural frequency. It can be found that the proposed orthotropic plate model gives the natural frequencies closer to the measured result than the isotropic plate model.