中文摘要：

以带附加气室的空气悬架为研究对象，基于流体力学与工程热力学，建立空气弹簧-连接管路-附加气室数学模型；考虑到空气弹簧刚度的非线性，将其以空气弹簧非线性力的形式引入到1／4车辆动力学模型中；以寻求车辆乘坐舒适性、轮胎接地性与操纵稳定性的综合性能最优为目标，对典型工况下的附加气室容积与减振器阻尼进行寻优。优化结果表明，悬架的综合性能、乘坐舒适性得到改善，轮胎接地性与操纵稳定性略有降低。台架试验与仿真结果基本吻合。

英文摘要：

Taking air suspension with auxiliary chamber as the study target, the mathematical model of air spring-connecting pipeauxiliary chamber was established .And the model was carried through into 1/4 vehicle dynamic model in the form of nonlinear force of air spring. When the matching optimization of damping and auxiliary chamber was chosen, the integrated optimal performance of the ride comfort, the road holding and the handling stability was selected for optimization objective. Optimization results show that the integrated performance and tbe ride comfort were improved. The simulation results agree with the testing data of the test bench.