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《China Mechanical Engineering》 2009-13

## A New Mathematical Modelling and Simulation Method for Vehicle Ride Comfort

Li Jie Qin Yuying Zhao QiState Key Lab of Automobile Dynamic Simulation,Jilin University,Changchun,130025
Taking vehicle eight-degree of freedom model as an example,vehicle vibration structure was discreted based on ideas of finite element.Attributes of node displacement were prescribed and method of element transform was given.Factor matrixes of vehicle vibration equation were assembled according to positions of node displacements in vector of structure general displacements.Method of bind disposal was taken according to method of constrain displacement disposal,then mathematical model of vehicle vibration was constructed,which could be solved for displacement responses.The method for construction of mathematical model was connected with pseudo-excitation method,simulation of vehicle ride comfort was carried out.Results show that the method of constructing mathematical model and simulation is simple and easy for engineering applications.
【Fund】： 国家863高技术研究发展计划资助项目(2006AA1101022006AA110104)
【CateGory Index】： U461.4
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