基于多参数可调悬置的动力系统隔振性能优化  

Optimization of power system’s vibration-isolation performance based on multi-parameter adjustable mount

作　　者：沈保山 张美娟[1] 钟兵[2] 游专 SHEN Baoshan;ZHANG Meijuan;ZHONG Bing;YOU Zhuan(School of Automotive and Transportation,Wuxi Institute of Technology,Wuxi 214121;School of Automotive Engineering,Shandong Jiaotong University,Jinan 250357)

机构地区：[1]无锡职业技术学院汽车与交通学院,江苏无锡214121 [2]山东交通学院汽车工程学院,山东济南250357

出　　处：《机械设计》2023年第10期122-127,共6页Journal of Machine Design

基　　金：江苏省产学研合作项目(BY2022826);教授博士启动基金项目(10493121018);江苏高校“青蓝工程”资助项目。

摘　　要：为提升并保持橡胶悬置的隔振性能,文中提出了一种三向刚度和支撑高度均可调整且各向均有限位的橡胶悬置结构,并对其基本构成和工作原理进行了阐述;以某商用车动力悬置系统为例,在研究了锥角、厚度及高度等参数对轴、径向刚度比例系数影响的基础上,对该悬置结构进行了详细设计,并采用理论计算与刚度试验的方法研究了预载位移与轴、径向刚度的关系,进一步明确了该悬置刚度可变范围;最后,进行了车辆悬置刚度调校及隔振性能测试。结果表明:通过多参数的调整,能够保证动力总成的姿态,并可有效提升动力悬置系统的环境适应性、隔振性能及系统开发效率。In this article,in order to improve and maintain the rubber mount's vibration-isolation performance,a rubber-mount structure is proposed,which can adjust the parameters of three-way stiffness and support height,and has finite position in all directions.Its basic structure and working principle are described.Then,with the commercial vehicle's power suspension system as an example,efforts are made to explore the influence of cone angle,thickness,height and other parameters on the proportion coefficient of the shaft and radial stiffness;the suspension structure is designed in detail,and the relationship between the preload displacement and the shaft and radial stiffness was studied is identified by a series of theoretical calculation and stiffness test;the variable range of the suspension stiffness is clarified.Finally,the vehicle is subject to the adjustment in its mounting stiffness and the test on its vibration-isolation performance.The results show that the power train attitude can be guaranteed thanks to the adjustment in multiple parameters.Besides,the power mounting system's environmental adaptability,vibration-isolation performance and efficiency in development have greatly improved.

关 键 词：橡胶悬置 解耦率 隔振率 有限元分析 刚度 

分 类 号：U469[机械工程—车辆工程]