重庆大学 机械传动国家重点实验室
TH113.1?????
国家重大研究项目
State Key Laboratory of Mechanical Transmission,ChongQing University
Supported by National major research project of China(J2019-IV-0018-0086)
文章基于赫兹接触理论的碰撞函数设置齿轮接触,建立健康、轻度、中度、重度不同齿轮点蚀多柔体动力学模型并进行仿真,分析不同点蚀情况下行星齿轮时频域振动响应。搭建行星齿轮箱振动试验平台获取行星齿轮振动响应信号并验证行星齿轮点蚀多柔体动力学模型的正确性、合理性,研究了行星齿轮传动齿面点蚀中形貌演化过程。研究结果表明,Y方向振动速度有效值和峰峰值随着点蚀复杂程度增加而增加；有点蚀模型振动速度和加速度出现明显边频信号,试验结果基本与仿真相符。
Based on the impact function of Hertz contact theory, gear contact was set up, multi-flexible body dynamics models of healthy, mild, moderate and severe gear pitting were established and simulated, and vibration response of planetary gear in time-frequency domain under different pitting conditions was analyzed. The vibration test platform of planetary gear box was built to obtain vibration response signals of planetary gear and verify the correctness and rationality of multi-flexible body dynamics model of planetary gear pitting. The morphology evolution process of planetary gear transmission tooth surface pitting corrosion was studied. The results show that the effective value and peak-peak value of vibration velocity in Y direction increase with the increase of pitting complexity. Obvious edge frequency signals appear in vibration velocity and acceleration of the slightly eroded model, and the experimental results are basically consistent with the simulation.
