旋转机械截面三维谱诊断技术研究及应用

Research and application of operation condition of 3-dimensional of rotor of rotating machinery

提出在二维信号轴心轨迹基础上,引入轴向信号,同时考虑水平、垂直和轴向三路信号形成的三维轴心轨迹。接着,对信号分解,提取了工频信号,并通过推导确定了单频信号的三维轴心轨迹是平面椭圆图形。而实际的三维轴心轨迹则是各倍频信号轨迹的合成。信息量的增加,丰富了诊断信息,减少了误判情况的发生。

Put in orbit two-dimensional signal based on the introduction of axial signal,taking into horizontal,vertical and axial three-way signal the formation of three-dimensional orbit. Then,the signal deomposition,from the frequency signal, and is derived by determining the single-frequency signals in the three-dimensional orbit is elliptical plane graphics. The actual three-dimensional orbit is the frequency of the signal path. The increase in the amount of information,enriched the diagnostic information,reducing the occurrence of misjudgment of the situation.