可调阻尼减振器外特性仿真与性能分析  

External characteristic simulation and performance analysis for an adjustable damper

作　　者：李仕生[1] 徐中明[1,2] 张志飞[1] 杨建国[1] 

机构地区：[1]重庆大学机械工程学院,重庆400030 [2]汽车噪声振动和安全技术国家重点实验室,重庆400039

出　　处：《振动与冲击》2012年第12期179-184,共6页Journal of Vibration and Shock

基　　金：高等学校博士学科点专项科研基金(20100191110004);汽车噪声振动和安全技术国家重点实验室2010年度开放基金(NVHSKL-201010)

摘　　要：研制了一种用于车辆半主动悬架的可调阻尼减振器,阐述了该减振器的结构形式和工作原理。基于流体力学和弹性力学理论,提出并应用并联管路节流压差和串并混联管路各分支流量计算方法,利用环形薄板阀片受均布载荷作用时的挠曲变形解析式,建立了可调阻尼减振器的详细数学模型。在MATLAB环境下对模型进行仿真研究,仿真结果与试验结果符合较好。同时用该模型分析了"回油管路"结构参数对减振器阻尼力的影响规律,得出的结论为可调阻尼减振器的设计和性能预测提供一定的技术支持。An adjustable damper for semi-active suspension was developed,and its structure and operation principle was illustrated.According to the theory of hydraulics and elasticity,the throttle pressure in a parallel pipeline and the embranchment flow rate in a series and parallel complex pipeline were deduced and used,and the detailed mathematical model of the adjustable damper was established by using the analytical solution to an annular lamina deformation under a uniform load.MATLAB software was used to simulate the detailed model,the calculated results agreed well with the test ones.Meanwhile,the influence rule of the structural parameters on the circumfluence pipeline was analyzed with the model,and the obtained results provided a technical support for design and performance prediction of an adjustable damper to a certain level.

关 键 词：可调阻尼减振器 并联管路 串并混联管路 外特性 仿真 试验 

分 类 号：U463.33[机械工程—车辆工程]