摘要
驱动桥是汽车传动系统重要总成,其性能的优劣直接影响高端后驱车、四驱车的驾驶性能和品质。传统的汽车驱动桥噪声的分析方法主要是结合大量试验进行判断,其不足点是发现问题滞后,迭代优化速度慢。以某乘用车驱动桥为研究对象,针对整车NVH试验工况中驱动桥啸叫问题进行专项分析和优化,基于MASTA软件及CEMS软件建立了一种驱动桥NVH分析及性能优化方法。对准双曲面齿轮啮合振动激励机理、传动路径和振动响应等进行详细分析,通过对驱动桥锥齿轮宏观参数及微观修形参数优化,齿轮加工误差、传递误差、啮合刚度专项优化和控制;通过对系统振动响应分析,分析系统响应结果,预测振动噪声风险。最后通过单对齿轮滚检传递误差、噪声及整车试验结果验证改进效果。通过以上手段,降低了驱动桥的啸叫噪声,为驱动桥减振降噪以及主减齿轮的修形优化提供了理论参考。
Drive axle is an important assembly of vehicle transmission system, and its performance directly affects the driving performance and quality of high-end rear drive and four-wheel drive. The traditional automobile drive axle noise analysis method is mainly combined with a large number of tests to judge, its deficiency is the problem discovery lag, iterative optimization speed is slow. A passenger car drive axle as the research object, for the vehicle NVH test conditions of the drive axle noise problem for special analysis and optimization, based on MASTA software and CEMS software to establish a drive axle NVH analysis and performance optimization method. At the same time, the meshing vibration excitation mechanism, transmission path and vibration response of hypoid gear are analyzed in detail. Through the optimization of macro parameters and micro modification parameters of drive axle bevel gear, the special optimization and control of gear processing error, transmission error and meshing stiffness;At the same time, the vibration response of the system is analyzed, the system response results are analyzed, and the risk of vibration and noise is predicted. Finally, the improvement effect is verified by the transmission error, noise and vehicle test results of a single pair of gear rolls. Through the above means, the noise of the drive axle is reduced, which provides a theoretical reference for the vibration and noise reduction of the drive axle and the modification and optimization of the main reduction gear.
作者
金子嵛
赵雪松
白学斌
张鹏
于博瑞
Jin Ziyu;Zhao Xuesong;Bai Xuebin;Zhang Peng;Yu Borui(China Faw Co.,Ltd.General Research and Development Institute,Changchun 130013)
出处
《传动技术》
2022年第3期26-31,共6页
Drive System Technique
关键词
参数优化
传递误差
动态啮合力
啮合刚度
振动响应
parameter optimization
transmission error
dynamic meshing force
meshing stiffness
vibration response
