Sealing Performance of Pressure-Adaptive Seal
作者机构：National Key Laboratory of Human Factors EngineeringChina Astronaut Research and Training CenterBeijing 100094China
出 版 物：《Journal of Shanghai Jiaotong university(Science)》 (上海交通大学学报（英文版）)
年 卷 期：2022年第27卷第6期
页 面：747-756页
核心收录：
学科分类：08[工学] 082504[工学-人机与环境工程] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术]
基 金：China Manned Spaceflight Fund
主 题：pressure-adaptive seal contact stress leakage rate
摘 要：A pressure-adaptive seal is developed to meet the demands of quick assembling and disassembling for an individual protection equipment in *** analysis model,which reflects the main characteristics of the seal structure,is built based on the finite element method and the Roth’s theory of rubber seal,and verified by the prototype *** influences of precompression ratio,hardness of the sealing ring rubber,and friction coefficient on the sealing performance are investigated by variable parameter *** show that the model can describe the essential characteristics of the pressure-adaptive seal structure,which has good follow-up to the cavity pressure to achieve the purpose of pressure *** leakage rate correlates negatively with the precompression ratio of the sealing ring and the hardness of the sealing ring material,while is positively related to the friction coefficient between the sealing ring and the sealing *** maximum contact stress on sealing surface has negative correlation with the precompression ratio of the sealing ring,and positive correlation with the hardness of the seal ring *** damage risk of the sealing ring increases with the increases of the precompression ratio of sealing ring,hardness of sealing ring material,and friction coefficient.
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