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基于Riccati摄动随机传递矩阵方法建立的转子系统特征值与随机参数变量间的函数关系,给出了转子系统随机参数的识别方法和详细步骤,可用于识别随机参数的均值和方差。以改装的Bently实验转子为研究对象,通过大量测试,识别出了转子系统的随机支撑刚度参数,建立了该转子系统的随机参数动力学模型。该模型可用于研究转子系统的随机参数动力学问题。
Based on Riccati perturbation stochastic transfer matrix method, the rotor system eigenvalue and the function of random parameter variables are established. The identification method and detailed steps of stochastic parameters of rotor system are given, which can be used to identify the mean and variance of random parameters. Taking the modified Bently experimental rotor as the research object, the random support stiffness parameters of the rotor system are identified through a large number of tests, and a stochastic parametric dynamic model of the rotor system is established. The model can be used to study the random parameter dynamics of rotor system.