| With the development of the modern automobile industry,the vehicle velocity has being promoted continuously. So considering the influence of the aerodynamics on vehicle has become more important in vehicle research and design. And the influence on vehicle driving stability is one of the important influences. Computer aided simulation on vehicle driving stability can provide designer much important data and useful information. And with the research going on,simulation can be used on other aspects of vehicle performance,will be an important means in vehicle design and research. Based on the reasons above,this article establishes the simulation model of turning process for CA770 car considering the aerodynamics,then analyzes several important factors on vehicle driving stability and builds the comparatively precise mathematic model;I complete the simulation study by using the personal computer. After compared with the results without regard to aerodynamics and the experiment results,I think the numeric simulation is exact and method is correct and effective. Finally,by analyzing the results after changing the several parameters of suspend system,I conclude the influence and level on vehicle driving stability of those parameters.
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