非线性动力学中的非光滑时空坐标
Non-Smooth Spatio-Temporal Coordinates in Nonlinear Dynamics
摘要:
本文概述了在动力系统中实现非光滑和不连续替换的物理思想和数学方法。这种替换的一般目的是使运动微分方程的形式,这是方便进一步使用的分析和数值方法的分析。讨论了三种不同类型的非光滑变换:位置坐标变换、状态变量变换和时间变换。提供了说明性的例子。
英文摘要:
This paper presents an overview of physical ideas and mathematical methods for implementing non-smooth and discontinuous substitutions in dynamical systems. General purpose of such substitutions is to bring the differential equations of motion to the form, which is convenient for further use of analytical and numerical methods of analyses. Three different types of nonsmooth transformations are discussed as follows: positional coordinate transformation, state variables transformation, and temporal transformations. Illustrating examples are provided.
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