说明：  MATLAB_轴心轨迹图、幅值谱、相位谱、功率谱 对转子的故障检测或许有帮助 可以结合轴心轨迹的圆度 散度分析
(MATLAB_ Orbit amplitude spectrum and phase spectrum, power spectrum rotor fault detection may help can be combined with the roundness of the core path divergence analysis)