汽车双层隔振系统的随机振动隔离及参数优化  

The Random Vibration Isolation and Parameter Optimization of Double Layer Vibration Isolation System of the Automobile

作　　者：段红杰[1] 陶浩[1] 

机构地区：[1]郑州轻工业学院机电工程学院,郑州450002

出　　处：《噪声与振动控制》2007年第3期79-82,共4页Noise and Vibration Control

基　　金：河南省科技攻关项目(0524260012);郑州轻工业学院中青年骨干教师资助项目

摘　　要：以1/4车体的垂向振动作为研究对象,建立汽车双层隔振系统的垂向振动模型,导出在白噪声输入情况下系统随机响应方差及最优阻尼比的解析式。分析隔振系统动力参数对响应方差的影响,应用MATLAB软件对双层隔振系统的隔振效果进行比较,优化得出系统的最优阻尼比等参数。The vertical direction vibration models of double layer vibration isolation system are established by 1/4 chassis vertical vibration took the object of study. The analytical formulate of random response variance and optimal damping ratio of the system are derived with white noise input. The influence on the transmissibility is analyzed for motivate parameter of this system. The effect of vibration isolation of different double layer vibration isolation system is compared by means of MATLAB software. The most superior damping ratio is obtained and optimized.

关 键 词：振动与波 汽车 双层隔振 响应方差 最优阻尼比 

分 类 号：U463.33[机械工程—车辆工程]