摘要
基于滤波白噪声生成法模拟了路面不平度,建立了四分之一车辆悬架系统非线性模型,在此基础上利用统计线性化方法对汽车非线性随机振动时域响应进行了研究,并利用MATLAB/Simulink软件对悬架振动进行了数字仿真。计算结果表明,用统计线性化方法求解汽车悬架系统的非线性随机振动问题是可行而且可靠的,仿真输出量可作为评价汽车平顺性的依据。
Base on band limit white noise, building the mathematical model of road roughness, adopting the non-linear model of quarter suspension system. Based on these,using statistic linearization method, the non-linear random vibration of the automobile was studied,and making digital simulation of suspension vibration by use of MATLAB/Simulink software. The results of calculation demonstrates the validity of statistic linearization method, simulation output can evaluate the ride performance of automobile.
出处
《汽车科技》
2009年第2期20-23,共4页
Auto Sci-Tech
