中文摘要：

通过对振动信号的处理、分析发现,旋转机械转子系统的振动信号经幅值谱、功率谱等传统的谱分析方法后,往往除了1倍频外还包括各次谐波及高倍频成份;引起转子系统振动信号中2倍频分量的因素很多,包括不对中、裂纹和电磁干扰等。直接从幅值谱等传统的谱分析方法很难判断2倍频振动分量的性质和原因。研究基于对中性良好的转子试验台,模拟了多种转子系统的故障,研究了二维全息谱以及轴心轨迹在旋转机械轴裂纹故障和碰磨故障诊断中的应用,结果证明所实现算法的有效性。

英文摘要：

Rotors vibration signal of rotating machinery often contains various harmonic and high frequency doubling in addition to base frequency by using amplitude spectrum, power spectrum and other traditional spectral analysis methods. Factors that cause 2X frequency doubling of rotor vibration signal may be misalignment, cracks, electromagnetic interference, etc, and it is difficult to determine the nature and causes of 2X frequency doubling vibration components directly from the amplitude spectrum and other traditional spectral analyses. A variety of rotor system failures are simulated based on the rotor test rig, this work mainly studies the application of 2D-holospectrum and shaft orbits in shaft crack fault and rubbing fault diagnosis of rotating machinery, the results verifys the effectiveness of the proposed algorithms.