参数慢时变转子系统不平衡量的辨识

THE IDENTIFICATION OF ROTOR SYSTEM UNBALACE WITH SLOWLY TIME-VARING PHYSICAL PARMETERS

在影响系数法的基础上，结合转子在线自动平衡的特点，建立了参数馒时变转子系统不平衡量的辨识教学模型。根据折息辨识法和多层递阶辨识法，提出跟踪法、误差跟踪法、多项式拟合外推法进行辨识。最后，通过简例的仿真计算，证明辨识教学模型及其辨识方法是可行的，同时对这几种辨识方法进行了比较，提出了适用的最佳辨识方法。

An unbalance identification mathematical model of a rotor system with slowly time-yaring physical parameters is established on the basis of the influence confficient method and the properties of on-line automatic rotor-balancing. According to the measurement-discount prediction method and the multi-step recursiveprediction method, the tracing,error-tracing and polynofornal recursive mehtod are proposed to predict the unbalance without trial onthe identification mathematical modle. By digital simulation of a sample example, the identification mathematical mace and the methodsare proved feasible. The methods are also compared,and the best oneis potted out in the end.