动力学系统局部非线性参数辨识的动态规划法

Identification of Local Nonlinear Parameters of a Dynamic System by Dynamic Programming

根据系统辨识问题最优控制解的概念，将现代控制理论中解决最优控制问题的动态规划方法用于辨识结构动力学系统中局部非线性结构的物理参数。这类系统由模型参数已知的大的线性主结构与一个或多个非线性子结构组成。所提出的方法适用于解决航天器以及工程机械结构中的连接结构、连接部件的参数识别问题。

Based on the concept of optimal control solution in system identification problem,dynamic programming method is used to identify local nonlinear parameters of structural systems. Such systems can be decomposed into a large linear main structure and one or more nonlinear substructures. The method is applicable to the identification of joint parameters of aerospace or mechanical structures.