摘要
采用虚拟激励法和模态叠加相结合的方法,应用m athem atic语言编制了二分之一车辆模型的悬架系统性能仿真程序。并以某汽车悬架系统为例,进行了模拟仿真计算,得到了给定测点在平稳路面激励下的响应功率谱矩阵和系统各阶振幅及相位差与路面激励频率之间的关系。计算结果表明该方法具有一定实用价值,可大体上反映出汽车振动性能及平顺性好坏。
According to pseudo-excitation method and mode-superposition method,a one-half system performance simulation program for a five-DOF vehicle model is developed,using'Mathematica'language.Taking a certain suspension system of a vehicle as an example,output curves of 'Response power spectral density matrices'of the given points are obtained directly,and the relations between the response amplitudes or the phase differences and the road excitation frequency can be also given.As a result,the program can be applied to vehicle suspension system design and assessment of vehicle ride comfort.
出处
《振动与冲击》
EI
CSCD
北大核心
2006年第6期167-169,共3页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(10472029)
关键词
悬架系统
虚拟激励
模态
suspension system,pseudo-excitation,mode
