机电工程技术2025，Vol.54Issue(5)：97-102,6.DOI:10.3969/j.issn.1009-9492.2025.05.017
基于最可能失效时间的腐蚀加筋板安全寿命分析
Safety Lifetime Analysis of Corrosive Stiffened Panel Based on Most Possible Failure Instant
王昊东 1王伊凡 1刘炎1
作者信息
- 1. 华中科技大学船舶与海洋工程学院,武汉 430074
- 折叠
摘要
Abstract
To analyze the influence of degradation phenomena such as corrosion on the reliability of ship structures,a safety lifetime analysis method combine with Kriging model and most possible failure instant(MPFI)is proposed.In order to simplify the time-variant reliability calculation,it is proposed the MPFI of sample,whose state is representative in the current time interval.The Kriging model was used to recognize the state of MPFI for each sample,then computed the time-dependent failure probability and searched the safety lifetime of structure.The proposed method was verified by a cantilever tube example and applied to the safety life analysis of corrosive stiffened panel structure in ship.It shows that the safety lifetime of corrosive stiffened panel structure under the standard of first order ductile failure is 13 years and two months.Compare with other algorithms,the number of simulations and the total time cost are respectively reduced by 20.8%and 24.1%.关键词
最可能失效时间/Kriging模型/腐蚀加筋板/安全寿命分析Key words
most possible failure instant/Kriging model/corrosive stiffened panel/safety lifetime analysis分类
交通工程引用本文复制引用
王昊东,王伊凡,刘炎..基于最可能失效时间的腐蚀加筋板安全寿命分析[J].机电工程技术,2025,54(5):97-102,6.
