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用混沌理论中的相空间重构、关联维数和最大李雅普诺夫指数的理论与方法,对液压缸运行的动态时间序列信号进行分析,揭示其混沌特征;指出了现有研究液压系统动态性能的线性动力学的理论和方法的局限性;提出可以用关联维数和最大李雅普诺夫指数来表征液压缸运动动态稳定程度。
The dynamic time series signals of hydraulic cylinders are analyzed and their chaotic characteristics are revealed by the theory and method of phase space reconstruction, correlation dimension and maximum Lyapunov exponents in chaos theory. The existing research on the dynamic performance of hydraulic system The linear dynamic theory and method of the limitations; proposed correlation dimension and the maximum Lyapunov index can be used to characterize the dynamics of hydraulic cylinder dynamic stability.