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中文摘要：
针对某车型制动和加速工况时存在整车俯仰运动较大,轮胎磨损严重等问题,测量该车麦弗逊式前悬架硬点坐标并进行悬架弹性原件测试,根据所得参数,在Adams/car中建立刚柔耦合模型,将悬架模型与测试平台装配,分析得到其模态;对该模型输入垂直激励,分析其受力状态;再进行左右轮平行跳动工况仿真,以抗制动点头率、抗加速抬头率和前轮前束角为优化目标,将仿真结果输入到Adams/insight,对横拉杆硬点坐标（Tie-outer）进行灵敏度分析和优化,得到较为理想的结果,为改善该车悬架性能提供了理论依据.
英文摘要：
Under braking and acceleration conditions, a vehicle exists the big vehicle longitudinal motion, serious wear of tire and so on. For the problems, it measures the vehicle McPherson front suspension hard point coordinates and flexibility test. According to the parameters, the rigid flexible coupling model is built in the Adams/car. By assembling the suspension model and testing platform, it obtains its modal analysis. Through putting the vertical excitation into the model, analyzes its stress state; Taking anti-dive-braking, anti-lift-acceleration and toe angle as the optimization goal, left and right＇s two wheels are made parallel travel condition simulation. Simulation results will be input in the Adams/insight, and analyze the sensitivity of the tie rod hard point coordinates and optimize, getingt relatively ideal result. It will provide a theoretical basis for improving the vehicle suspension performance.
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Electromechanical analogy approach to modeling and analysis of air suspension with auxiliary chamber
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