摘要
为了解决有限元方法难以准确描述汽车用双筒液压减振器工作特性的难题,首先阐述了双筒液压减振器的结构组成,较为详细分析了该减振器的工作原理;建立减振器机械系统的3D数字模型,基于ADAMS仿真软件搭建双筒液压减振器的多体动态仿真模型,并在此基础上仿真分析液压减振器的示功图、阻尼特性评价和非线性特征;最后通过减振器台架试验对CAE分析结果进行验证,研究结果表明:仿真计算模型能较准确地模拟减振器外特性。该研究为减振器的设计和分析提供参考。
In order to solve the difficulty that finite element method was hard to to accurately describe performance of binocular hydraulic shock absorber on automobile, the structure of a binocular hydraulic shock absorber was expounded, the working principle of the binocular hydraulic shock absorber was analyzed in great detail; the 3D digital model of the mechanical system of the binocular hydraulic shock absorber was established based on CATIA software and the multi-body dynamic simulation model of the absorber was built based on the ADAMS simulation software; the indicator diagram, damping characteristics evaluation and simulation analysis for the absorber were made. Finally the CAE analysis result was validated by the shock absorber bench test. The result has shown that the simulation calculation model can accurately simulate the shock absorber external characteristic. It provides reference for design and analysis of shock absorber.
出处
《汽车零部件》
2017年第2期3-6,共4页
Automobile Parts
基金
国家自然科学基金资助项目(51405123)
江西省教育部项目(赣教技字[2007]20号)
关键词
双筒液压减振器
示功图
阻尼特性
仿真分析
台架试验
Binocular hydraulic shock absorber
Indicator diagram
Damping characteristics
Simulation analysis
Bench test
