基于高速摄影技术的行星减速箱故障激光序列脉冲诊断方法

Laser sequence pulse diagnosis method of planetary reducer fault based on high-speed photography technology

设计了一种基于高速摄影技术的行星减速箱激光序列脉冲诊断方法。将序列脉冲激光器与高速相机配合使用,采集减速箱振动激光序列脉冲信号,利用多传感器收集振动信号,计算信号排列熵。判断激光序列脉冲信号是否存在异常特征,若存在异常,则将序列脉冲信号转换成可非分割线性关系,采用径向基核函数计算出脉冲训练值,凭借训练值高低判断行星减速器齿轮及轴承的故障程度。测试实验证明,研究方法可行有效,检测不同故障信号的序列脉冲信号,概率密度函数特征点分布在[0.23,0.34],能精准分辨出4种不同的故障类型。

A diagnosis method of planetary gearbox laser sequence pulse based on high-speed photography technology was developed.The serial pulse laser was used with a high-speed camera to collect the serial pulse signal of the vibration laser of the gearbox,and the vibration signal was collected by multi-sensors to calculate the entropy of signal arrangement.To determine whether there are abnormal characteristics in the laser sequence pulse signal,if abnormalities are detected,the sequence pulse signal is converted into a non-separable linear relationship.Then,the radial basis function(RBF)kernel is utilized to calculate the pulse training values.Based on the level of these training values,the extent of faults in the planetary reducer's gears and bearings is assessed.The test results show that the research method is feasible and effective,and the characteristic points of probability density function are distributed in[0.23,0.34]by detecting the sequence pulse signals of different fault signals,which can accurately distinguish four different fault types.