多工况汇流行星排齿轮系统振动特性试验研究

针对汇流行星排在履带车辆综合传动装置工作中产生的振动问题,设计并搭建振动测试试验台对汇流行星排进行了不同档位的负载工况加速度振动信号采集,分析了不同档位工况下汇流行星排的时域与频谱特征的变化规律。研究结果表明,同一档位下,负载功率越高,振动强度越大,且z向振动强于x向和y向。频谱结果表明,y向与z向振动能量主要集中在啮合频率及倍频,z向频率幅值略高于y向,高档位时啮合频率幅值集中在1、3阶,其幅值变化明显,结果对研究汇流行星排在复杂工况下振动特性具有一定参考价值。

Experimental study on vibration characteristics of planetary gear system with multiple working conditions

In view of the vibration problem caused by the convergence of the planetary planets in the integrated transmission of the tracked vehicle, the paper designs and builds the vibration signal of the load-carrying movement of the converging planetary platoon in different positions of the busbar vibration test rig. It analyzes the variation of the time domain and spectral characteristics of the confluent planetary platoons under different gear positions. The results show that under the same gear position, the higher the load power, the greater the vibration intensity, and the z-direction vibration is stronger than x, y; the spectrum results show that the y-direction and z-direction vibration energy are mainly concentrated in the meshing frequency and frequency multiplication, z The frequency amplitude is slightly higher than the y direction, In the high-end position, the amplitude of the meshing frequency is concentrated in the 1st and 3rd steps, and its amplitude changes obviously. It has certain reference value for studying the vibration characteristics of the confluent planetary row under complex conditions.