传动系扭转刚度对变速器齿轮敲击异响影响研究

针对某前置后驱车型变速器齿轮敲击异响问题,采取试验和主观评价相结合的研究方式,分析并确认其传动系扭振特性匹配不当与变速器齿轮敲击异响间的较强相关性。据此利用ADAMS软件建立传动系仿真模型研究传动系关键部件扭转刚度特性参数对变速器齿轮敲击异响的影响规律。结果表明:离合器主减振刚度、后桥半轴扭转刚度对传动系扭振具有显著影响,进而引致变速器齿轮敲击异响,通过减小离合器主减振刚度以及增大半轴刚度等方式可有效抑制此类异响问题。

Study on the Effect of Torsional Stiffness of Transmission Systems on the Abnormal Sound of Transmission Gears

Abstract: Taking the combination of experiment and subjective evaluation, the problem of gear knocking abnormality of Front-engine Rear-drive is studied, and the strong correlation between the torsional vibration characteristic of the driveline and the abnormal sound of the transmission gear is confirmed. The simulation model of the transmission system is established by using ADAMS software and the influence of the torsional stiffness characteristic parameters of the key components of the transmission system on the abnormal sound of the gears. The results show that the main damping rigidity of the clutch and the torsional stiffness of the rear axle have a significant effect on the torsional vibration of the transmission system, which causes the gears to hit the gears, which can be effective by reducing the main vibration, stiffness and increasing the axle stiffness Suppress such abnormalities.