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本文建立了板簧、减震器和撞击限位块、车轮跳离现象的非线性模型;利用统计线性化方法对二自由度非线性车辆系统进行了平稳随机激励下的响应计算,并对非线性模型中各参数对响应的影响进行了分析,为非线性参数的优化提供了依据。
In this paper, the nonlinear model of the spring, the shock absorber and the impact limit block and the wheel jump phenomenon was established. The response calculation of the two-degree-of-freedom nonlinear vehicle system under the condition of steady random excitation was made by statistical linearization method. The influence of each parameter in the linear model on the response is analyzed, which provides the basis for the optimization of nonlinear parameters.