摘要
以某型双筒充气式液压减振器为研究对象,结合其结构特点及产热与传热原理就减振器温度特性仿真的建模方法展开了探究。借助仿真软件AMESim,分别建立了面向减振器机械阻尼特性和传热特性的等效参数化仿真模型。基于功热等效的方法,即以阻尼特性模型仿真出减振器的示功特性,再以此计算出传热模型发热功率的方式对温度特性进行仿真求解。通过仿真结果与实验结果对比可知,该模型的计算精度较高,建模方法切实可行,所建立的仿真模型可用于减振器温度特性的研究与预测。
With a dual-sleeve hydraulic shock absorber as the research object,further research on modeling method of temperature characteristics of shock absorbers is studied based on its structural and thermal characteristics.Equivalent parametric simulation models of force-displacement characteristics and temperature characteristics are built separately by the software AMESim.With the first model,the power of force-displacement characteristics is calculated,which is used in the simulation of temperature characteristics as the heat source.Finally,the simulation model is further verified by a bench test,and the comparison results show that the maximum error of temperature characteristics is relatively low under four loading conditions.It verifies the feasibility and high accuracy of the model,which can be used for research and prediction of temperature characteristics of shock absorbers.
作者
廖振科
丁渭平
刘平
税永波
姚宇
黄海波
LIAO Zhen-ke;DING Wei-ping;LIU Ping;SHUI Yong-bo;YAO YU;HUANG Hai-bo(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,Sichuan 610031;Engineering Research Center of Advanced Driving Energy-saving Technology,Ministry of Education,Chengdu,Sichuan 610031;Chongqing Technology & Business Institute,Chongqing 401520;School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an,Shaanxi 710049)
出处
《液压与气动》
北大核心
2019年第8期33-38,共6页
Chinese Hydraulics & Pneumatics
基金
国家自然科学基金(51775451)
重庆市教委科学技术研究资助项目(KJ1603801)
关键词
减振器
功热等效
温度特性
建模方法
shock absorber
equivalent thermal power
temperature characteristics
modeling method
