摘要
随着故障转子动力学理论研究的深入和故障诊断技术的发展 ,转子系统非线性振动的研究越来越重要 .在给定输入的情况下 ,将滑动轴承特性视为“黑盒子” ,以模式识别与参数估计的方法计算输出 ,基于系统识别和参数估计理论改进线性模型的刚度系数和阻尼系数 ,建立一种在线性模型基础上的改进模型 ,可以得到轴承特性较好的表征 .对滑动轴承油膜非线性动态特性的深入研究作一探讨 .
With the development of malfunction diagnostic technique,some achievements in the research of sliding bearing non-linearity dynamics' characteristic have been gained.The methods of recognizable mode and estimate parameter were introduced in this paper,in which the input was given,output should be calculated and the characters of bearing should be regarded as “black box”.The sliding bearing non-linearity dynamics' characteristics were studied based on the methods with which the linearity model's rigidity coefficient and damping coefficient can be improved according to the theoty of system-recognize and parameter-estimate.
