在周期激励及噪声干扰下双稳系统性态的数值模拟研究

Numerical Simulation of the Behaviof of a Bistable System.

本文利用ＭｏｎｔｅＣａｒｌｏ方法（ＭＣＭ），对周期激励及噪声干扰作用下双稳系统的性态进行研究．获得了系统周期形式的非平稳概率分布及位移──速度联合分布．发现它们与系统势能的某些拓扑关系．本文对跳跃和信号强度随参数变化的关系也进行了探讨．

By using Monte Carlo Method,the character istics of a bistable dyanamicssystem under the influence of periodic and noise force are analyzed.The period non-station-ary probability and the joint probability distribution for the system are obtained;Some topo-logical relations among them and potential are found.The jump characteristic and the signalintensity changing with parameter are also discussed.