矩阵摄动理论在转向架横向运动稳定性分析中的应用

Application of Matrix Perturbation Theory in the Analysis of the Lateral Stability ot Bogies

本文给出一种分析车辆横向运动稳定性的方法，即利用复模态理论的矩阵摄动法￣［１］来计算临界速度。该方法避免了反复计算矩阵的特征值，从而可节约大量的计算机机时。对矩阵摄动法计算精度的研究结果表明，该方法的精度是足够的。

This paper provides a method to analyze the lateral stability of railway cars,that i5.tO calculate the criticalvelocity with the method of matrix perturbation from the complex number modal theory. This method avoids the repeated calculating of the matrix characteristic value,and can save the computer much time. The research result shows that this method is accurate enough.