首先给出了谐波小波时频剖面图检测含噪声信号的微弱奇异成分的方法 然后运用谐波小波时频剖面图方

法分析了碰摩故障仿真信号 最后利用该方法对多个实际汽轮机组动静碰摩故障的真实振动信号进行了分析研

究。结果表明, 谐波小波能够得到其它信号分析方法无法得到的特征, 有效识别机组的碰摩故障。-Harmonic wavelet time􀀁 frequency profile plot is introduced firstly in practice to identify weak singularity

in a signal with noise clearly. With this method, emulational signal and vibration data of the rubbing of the large practical

turbo-generator units are analyzed successfully, which prove that the method is effectively extract the rubb ing signal feature.