摘要
某型号弹载电液舵机采用O形圈密封,其工作可靠性和使用寿命与O形圈密封性能密切相关。为了探究压缩率、槽口圆角和密封间隙在耦合条件下对其密封性能的影响,建立了二维有限元模型,施加了流体压力载荷,研究了压缩量、槽口圆角和密封间隙等参数对O形圈在承载时的等效应力和接触应力的影响,为密封结构的优化提供了理论依据。
A certain type of missile-loaded electro-hydraulic steering gear adopts O-ring sealing,and its working reliability and service life are closely related to O-ring sealing performance.In order to investigate the effect of compression ratio,notch fillet and sealing gap on the sealing performance under coupling conditions,a two-dimensional finite element model was established and the fluid pressure load was applied.The effects of parameters such as compression amount,notch fillet and sealing gap on the equivalent stress and contact stress of the O-ring during loading were found.It provides a theoretical basis for the optimization of the sealing structure.
作者
熊力
张志彬
刘银水
付磊
XIONG Li;ZHANG Zhi-bin;LIU Yin-shui;FU Lei(Hubei Sanjiang Aerospace Red Peak Control Co.,Ltd.,Xiaogan 432000,China;Huazhong University of Science and Technology School of Mechanical Science and Engineering,Wuhan 430074,China)
出处
《液压气动与密封》
2020年第1期84-87,共4页
Hydraulics Pneumatics & Seals
基金
国防基础科研计划资助(JCKY2017204C024)
关键词
O形圈
等效应力
接触应力
多参数优化
O-ring
equivalent stress
contact stress
multi-parameter coupled optimization
