某装载机动力总成悬置系统隔振性能优化  

Optimal design for vibration isolation performance of a loader's powertrain mounting system

作　　者：吴杰[1,2] 李轼[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510641 [2]广东省汽车工程重点实验室,广州510641

出　　处：《振动与冲击》2016年第1期23-27,共5页Journal of Vibration and Shock

基　　金：国家863计划项目(2012AA110702);教育部新世纪人才计划项目(NCET-11-0157);华南理工大学中央高校基本科研业务费专项资金资助(D2115540)

摘　　要：以某工程装载机动力总成悬置系统为研究对象,为改善其隔振性能,对悬置系统固有频率进行优化配置的同时对其解耦率进行优化布置。以悬置静刚度和安装位置为优化参数,对固有频率和解耦率进行优化匹配。结果表明,优化后悬置系统各阶固有频率分配更加合理,垂直方向和绕曲轴方向解耦率得到显著提高,并仿真分析了优化方案的可靠性,最后通过实车测试验证了悬置系统的隔振性能得到较大改善。The frequency and decoupling ratio of a loader＇s powertrain mounting system were optimized in order to improve its vibration isolation performance. The mounting stiffness and installing position were selected as optimized variables. The results showed that its optimal natural frequencies are more rational, and the optimal decoupling ratios in Z and Ox directions are improved significantly; the reliability of the optimal scheme is higher than the original one. At last, test results showed that the vibration isolation performance of the powertrain mounting system is significantly improved.

关 键 词：装载机 动力总成悬置系统 解耦率 隔振性能 优化设计 

分 类 号：TK406[动力工程及工程热物理—动力机械及工程]