Abstract: In order to solve the cabin noise problem caused by the vibration of the main reducer of the front axle of a van, the article adopts the co-simulation of ADAMS/View and MATLAB/Simulink to optimize the stiffness of the suspension system. The previous tests show that the noise mainly originates from the meshing vibration of the reduction gear, and the vibration transmission rate between the reducer and the frame is more than 20%, which seriously affects the ride comfort. Through dynamic modeling and co-simulation, the vibration acceleration response under different mount stiffness is simulated, and the mount parameters are optimized. The simulation results show that the optimized mount system significantly reduces the vibration acceleration response, and the van noise is reduced by 50%, which effectively reduces the vehicle noise under a variety of working conditions. The study verifies the feasibility of optimizing the mount stiffness, and provides a theoretical basis and practical reference for the noise control of similar vehicles.

Key words: van noise; ADAMS; Simulink; co-simulation; mount stiffness

摘要： 为解决某厢式车前桥主减速器振动所引起的车厢噪声问题，文章采用 ADAMS/View 与 MATLAB/Simulink 联合仿真，优化悬置系统刚度。前期测试表明，噪声主要源于减速齿轮的 啮合振动，且减速器与车架之间的振动传递率超过 20%，严重影响乘坐舒适性。通过动力学 建模和联合仿真，模拟了不同悬置刚度下的振动加速度响应，并优化了悬置参数。仿真结果 表明，优化后的悬置系统显著降低了振动加速度响应，车厢噪声降低 50%左右，在多种工况 下有效减少了车辆噪声。该研究验证了优化悬置刚度的可行性，为类似车辆的噪声控制提供 了理论依据和实践参考。

关键词: 车厢噪声；ADAMS；Simulink；联合仿真；悬置刚度