机械控制系统非线性稳定性的若干方法研究

Study of some methods for solving stability of nonlinear systems

分析了机械控制系统中应用李亚普诺夫直接法求解非线性稳定性的 4种常用方法———直接试选二次型函数法、克拉索夫斯基法、变量梯度法和近似线性化法 ,并结合算例 。

In the paper,four common methods for solving stability of nonlinear systems with Lyapunov direct method are introduced.A concrete example is shown to compare appropriate condition of these methods.