CAJ | 학술논문

　　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。
　　수선건립량자유도적전자계통팽마적역학모형，이후채용Runge-Kutta수치방법진행방진분석，주요연구전속변화시적시간역정、폭치보화축심궤적。동시제취료전속화마찰계수도발생변화시적진동특정，위유효진단전자계통전정건팽마정도제공료이론의거。
This paper established mechanical model of rotor system’s rub-impact fault with two degrees of free?dom 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.