文献类型：期刊文献

英文题名：Fatigue Life Prediction Analysis of Combined Sealing Ring Under Pressure Pulsation

作者：Zhou, Z. J. Huang, X. Z. Zou, S. H. Pan, J. L.

第一作者：周知进;Zhou, Z. J.

通信作者：Zhou, ZJ[1];Zhou, ZJ[2]

机构：[1]Guangxi Univ Sci & Technol, Sch Mech & Automot Engn, Liuzhou, Peoples R China;[2]Guizhou Inst Technol, Engn Training Ctr, Guiyang, Peoples R China

第一机构：Guangxi Univ Sci & Technol, Sch Mech & Automot Engn, Liuzhou, Peoples R China

通信机构：corresponding author), Guangxi Univ Sci & Technol, Sch Mech & Automot Engn, Liuzhou, Peoples R China;corresponding author), Guizhou Inst Technol, Engn Training Ctr, Guiyang, Peoples R China.|贵州理工学院;

年份：2025

外文期刊名：STRENGTH OF MATERIALS

收录：;EI(收录号：20253318976201);Scopus(收录号：2-s2.0-105012939608);WOS:【SCI-EXPANDED(收录号:WOS:001547795900001)】；

基金：This research was supported by the National Natural Science Foundation of China (Grant No. 51479073). The authors sincerely thank Professor Zhou Zhijin for his great assistance during the research process and for his revision of this paper.

语种：英文

外文关键词：combined sealing ring; pressure pulsation; fatigue life prediction; Fe-safe analysis

摘要：In order to predict the fatigue life of combined sealing ring under pressure pulsation conditions, the fatigue crack propagation characteristic parameters of the materials were determined by Demattia accelerated fatigue tests. Simulation analysis based on the fatigue crack propagation prediction model was carried out to evaluate the stress magnitude and its distribution in the hazardous cross section of the combined sealing ring under pressure pulsation, and fatigue life prediction was carried out for the unit location of the hazardous cross section. At the same time, a prediction study of the fatigue crack formation life of the combined sealing ring was conducted in combination with Fe-safe to verify the reasonableness of the fatigue life prediction model parameters. The results show that the minimum fatigue life occurs in the middle and upper position of the C-ring, and the fatigue life predicted by Fe-safe at the position of the dangerous cross-section is basically consistent with that predicted by the theoretical model, with the relative error within 10%, which provides a methodological reference for the fatigue life prediction of the combined sealing ring under pressure pulsation.