液压支架蕾形复合密封圈材料特性实验和有限元分析  

Experimental and numerical study on bud shaped composite sealing ring of hydraulic support

作　　者：张晞[1] 王刚[1] 何明[2] 于淼[1] 

机构地区：[1]中国矿业大学(北京)机电与信息工程学院,北京100083 [2]天地科技股份有限公司开采设计事业部,北京100013

出　　处：《矿业科学学报》2016年第1期58-66,共9页Journal of Mining Science and Technology

基　　金：国家重点基础研究发展计划(973计划)(2014CB046302)

摘　　要：通过分析液压支架轴用动密封蕾形复合密封圈的密封原理、有限元的非线性问题、接触问题,阐述了橡胶、聚氨酯的材料特性、橡胶类超弹性体的基本理论和本构模型,并用不同常数的Mooney-Rivlin模型来表征橡胶和聚氨酯的材料特性。通过橡胶、聚氨酯的单轴拉伸和单轴压缩实验,得到两种材料的Mooney-Rivlin模型参数。依据实验参数对蕾形复合密封圈进行有限元分析,发现蕾形复合密封圈适合动密封,且随着载荷增大密封效果下降。本研究对密封件的设计具有参考意义。Based on the analysis for bud shaped composite sealing ring of hydraulic support,nonlinear problems and contact problems of finite element analysis,this paper expounds the material properties of the rubber,polyurethane,basic theory and constitutive model of rubber elastomer,and characterizes the material properties of rubber and polyurethane with Mooney-Rivlin model of different constants.Through uniaxial tension and compression tests of rubber and polyurethane,the parameters of MooneyRivlin model of two kinds of materials are obtained.According to the experimental parameters,the finite element analysis is made on the bud shaped composite ring,which is found to be suitable for the dynamic seal.As the loading increases,the sealing effect decreases.The research has reference significance to the design of the seal.

关 键 词：液压支架 超弹性体 蕾形复合密封圈 有限元 

分 类 号：TD355.4[矿业工程—矿井建设]