新型减振器阻尼装置的设计及其阻尼特性分析  

Design of A New Type of Shock Absorber Damping Device and Analysis of Its Damping Characteristics

作　　者：李卫民[1] 张彦鹏 杨泽宇 唐兆庆 LI Weimin;ZHANG Yanpeng;YANG Zeyu;TANG Zhaoqing(College of Mechanical Engineering and Automation,Liaoning University of Technology,Jinzhou Liaoning 121001,China)

机构地区：[1]辽宁工业大学机械工程与自动化学院,辽宁锦州121001

出　　处：《机床与液压》2025年第3期178-183,共6页Machine Tool & Hydraulics

基　　金：辽宁省科技重点专项项目(2022JH1/1080022)。

摘　　要：针对普通液压减振器阻尼特性恒定,汽车悬架性能无法在极端路面下适时调整的问题,设计一种新型减振器缓冲阻尼装置。在该装置基本结构和工作原理的基础上,建立其数学模型,并利用ANSYS建立双向流固耦合数值仿真模型,分析减振器阻尼特性和阀片变形量。最后,通过示功机对该减振器进行试验验证。结果表明:与普通减振器相比,新型减振器缓冲阻尼装置不仅增加了末位缓冲性能,而且减小了阀片的挠度变形量,延长了阀片的使用寿命;试验证明新型减振器双向流固耦合数值仿真具有准确性,且增加新型减振器缓冲阻尼装置后减振器性能更优。Aiming at the problem that the damping characteristics of ordinary hydraulic shock absorber are constant and the performance of automobile suspension cannot be adjusted timely under extreme road surface,a new type of shock absorber buffer damping device was designed.On the basis of the basic structure and working principle of the new damper buffer damping device,the mathematical model of the damping was established,and the bidirectional fluid-solid coupling numerical simulation model was established by ANSYS to analyze the damping characteristics of the shock absorber and the deformation of the valve sheet.Finally,the damper was tested and verified by the indicator.The results show that compared with the common shock absorber,the new shock absorber buffer damping device not only increases the performance of the end buffer,but also reduces the deflection deformation of the valve sheet,and prolongs the service life of the valve sheet.It is proved that the numerical simulation of bidirectional fluid-structure coupling of the new shock absorber is accurate,and the performance of the new shock absorber is better with the addition of the new damper buffer damping device.

关 键 词：减振器缓冲阻尼装置 阻尼特性 缓冲槽 双向流固耦合 示功图 

分 类 号：F407.471[经济管理—产业经济]