转子系统动力优化设计的逆摄动法

根据广义特征值振动扰动及其逆问题理论，借鉴结构矩阵摄动理论，利用逆求思想，提出一种动力优化设计逆摄动法。用以求解考虑强度、刚度、频率禁区、强迫振动等因素影响及以有限元法为分析手段的转子系统的复杂动力优化问题。将其与数学规划法或准则法以及结构摄动法相结合运用，尽可能地避免重分析，亦便于工程技术人员应用和发挥能动性。文后给出了若干典型算例及实例计算验证。本方法可推广用于其他机械系统或工程结构的动力优化设计。

INVERSE PERTURBATION METHOD OF OPTIMAL DYNAMIC DESIGN OF ROTOR BEARING SYSTEM

According to the theories of eigenvalue Perturbation and structural matrix perturbation, an inverse Perturbation method of optimal dynamic design of mechanical system is put forward by taking advantage of the idea of inverse solution. The method can be combined with mathematical method, criterion method or matrix Perturbation method in order to avoid re-analysis as far as Possible,and the initiative of the engineers and tecknicians can be brought into Play also. The method is fit to solve the complex optimal dynamic design Problems with dynamic behavior constraints while taking finite element method as analysis tool. Several examples are given in the later Part of this paper. The method can also be used for the optimal dynamic design of engineering structures.