转子系统动静件碰摩故障的影响因素研究  

A Study on the Influence Factors of Rub-impact Fault in the Rotor System

作　　者：华征潇[1] 易风[1] 

机构地区：[1]常熟理工学院机械工程学院,江苏常熟215500

出　　处：《常熟理工学院学报》2013年第4期46-50,共5页Journal of Changshu Institute of Technology

摘　　要：首先建立两自由度的转子系统碰摩的力学模型,而后采用Runge-Kutta数值方法进行仿真分析,主要研究转速变化时的时间历程、幅值谱和轴心轨迹.同时提取了转速和摩擦系数都发生变化时的振动特征,为有效诊断转子系统转静件碰摩程度提供了理论依据.This paper established mechanical model of rotor system＇s rub-impact fault with two degrees of freedom firstly, and conducted the simulation analysis with Runge-Kutta numerical method. The paper researched on time history, amplitude spectrum and orbit based on speed changes, got the vibration characteristics of speed and friction coefficient of common occurrence change, and provided theoretical basis for the effective diagnosis of rotor system＇s rubbing degree.

关 键 词：旋转机械 转速 碰摩 龙格库塔 

分 类 号：TK268[动力工程及工程热物理—动力机械及工程]