某载重卡车悬架参数优化及试验研究

摘要

为研究多轴载重卡车悬架总成刚度、阻尼之间的匹配和优化问题,提出一套基于ADAMS软件的适用于重型载货汽车悬架系统的优化设计方法.利用机械系统动力学仿真软件ADAMS/View建立某8 ×4载货卡车频域仿真模型,对其满载时以B级随机路面谱作为激励的加速度响应特性进行了仿真分析,并根据所提出的优化方法对该车悬架系统参数进行优化计算.最后,通过实车道路试验验证所建模型的正确性和优化方法的可行性,为重型卡车底盘系统集成优化匹配设计提供重要参考价值.%In order to study matching and optimization between suspension stiffness and damping for a multi-axle heavy-duty truck,a new optimal design method based on ADAMS was developed.Firstly,the frequency-domain simulation model for a 8 x4 heavy truck was built with ADAMS/View.Then,its acceleration response characteristics were gained when the full load truck with an excitation of B-level random road irregularities,and the optimal parameters for the suspension system were calculated with the proposed optimal method.Finally,a real vehicle road test was conducted to verify the correctness of the simulation model and the feasibility of the optimal method.The test results could be used as a reference to guide the integrated optimization and matching design of heavy truck chassis systems.