汽车稳态回转性能仿真与正交试验研究

摘要

以某汽车稳态回转试验为例,采用多体动力学仿真软件ADAMS建立了虚拟样机模型.利用正交试验设计方法设计试验方案并进行了仿真试验.通过对试验数据的处理与分析.得出了最优试验方案和各试验因素的影响程度,即对汽车稳态回转性能影响较大的因素依次为质心前后位置、轮胎的侧偏刚度、质心高度和前螺旋弹簧刚度.%The paper takes steady state turning ability test of a vehicle as an example to establish a virtual prototype model of a car in multi-body dynamics simulation software ADAMS.In the paper, an experiment program was designed with orthogonal experiment design method for simulation.By processing and analysis of the experimental data, the optimal test program and the influence of the test factors on the steady state turning ability of automobile were found, i.e.the location of mass center in lengthwise, the cornering stiffness of front and rear tires, the height of mass center, the stiffness of front spiral spring, according to the order of influence degree of these factors on vehicle steady-state turning ability.