【摘要】 提出了一种研究旋转机械瞬态信号的分析方法。对齿轮箱加速时测得的原始振动信号进行角域重采样,然后对角域里的信号进行伪魏格纳分布研究。结果显示:阶次跟踪技术能够有效避免传统频谱方法无法解决的"频率模糊"现象,伪魏格纳分布能够从三维的角度来描述齿轮的啮合情况,将两种方法相结合是对传统的频谱分析法的有力补充,具有广阔的应用前景。更多还原

【Abstract】 The analysis method of instantaneously signals in the rotate mechanism is explored as a new method.The original vibration signals at start-up in the gearbox were resampled in angle-domain and the results were analyzed with PseudoWigner-Ville distribution.The outcome shows that using order tracking technology can effectively avoid the "frequency smear" phenomenon,which cannot be solved with the traditional frequency spectrum method.The mesh case of the gear was described from three-dimensional with Pseudo-Wigner-Ville distribution.It is a trenchant supplement for traditional spectrum analysis combining the order tracking with EMD,and it has more amplitude appliance foreground.更多还原