机电工程技术2023，Vol.52Issue(12)：163-166,4.DOI:10.3969/j.issn.1009-9492.2023.12.038
机械密封中Ω形和U形波纹管的疲劳寿命分析
Fatigue Life Analysis of Ω Shape and U Shape Bellows in Mechanical Seal
李乾坤 1李学旺 1赵春雨 1向勇 1刘宝龙1
作者信息
- 1. 明阳智慧能源集团股份有限公司,广东中山 528400
- 折叠
摘要
Abstract
Aiming at the problem of mechanical equipment failure caused by fatigue failure of bellows in mechanical seals,Ω-shape and U-shaped bellows are taken as research and analysis objects,three-dimensional models are established by SolidWorks,finite element static calculation simulation is conducted by using Ansys software,based on the Miner fatigue damage principle,the equivalent stress and fatigue life of two types of corrugated pipes under different prestress are analyzed and compared.The results show that with the increase of prestress,the equivalent stress of the two kinds of bellows increases and the fatigue life decreases.The peak and trough positions of the bellows are stress concentration positions.Under the same prestress,the equivalent stress at the peak of Ω-shape bellows is greater than that at the trough,and the equivalent stress at the trough of U-shape bellows is greater than that at the peak,and the fatigue failure of U-shape bellows is more likely to occur than that of Ω-shape bellows,and the overall fatigue life of Ω-shape bellows is greater than that of U-shape bellows.The results of the simulation analysis combined with the Miner fatigue damage principle provide theoretical basis for predicting the failure of bellows and optimizing the design of bellows.关键词
波纹管/Miner疲劳损伤/等效应力/疲劳寿命Key words
bellows/Miner fatigue damage/equivalent stress/fatigue life分类
机械工程引用本文复制引用
李乾坤,李学旺,赵春雨,向勇,刘宝龙..机械密封中Ω形和U形波纹管的疲劳寿命分析[J].机电工程技术,2023,52(12):163-166,4.
