虚拟激励算法下的汽车悬架振动分析  

VIBRATION ANALYSIS OF SUSPENSION SYSTEM OF A VEHICLE MODEL WITH PSEUDO-EXCITATION METHOD

作　　者：张亮亮[1] 唐驾时[1] 李立斌[2] 

机构地区：[1]湖南大学工程力学系,长沙410082 [2]湖南工业职业技术学院现代设计艺术系,长沙410082

出　　处：《振动与冲击》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)

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.

关 键 词：悬架系统 虚拟激励 模态 

分 类 号：U463.33[机械工程—车辆工程]