Reliability analysis of bending fatigue life of hydraulic pipeline

Xingkeng Shen; Kaixuan Feng; Heming XuGuangqiang WangYishang ZhangYing DaiWanying Yun

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Reliability analysis of bending fatigue life of hydraulic pipeline

机译：Reliability analysis of bending fatigue life of hydraulic pipeline

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摘要

Fatigue failure caused by high pressure of fluid and external vibration seriously affects the performance and reliability of hydraulic pipelines. Probabilistic fatigue life assessment can quantify failure probability and fully utilize the performance of pipeline. The objective of this paper is to develop an effective reliability method to analyze the bending fatigue life of hydraulic pipeline combining with fatigue tests. Firstly, three-point bending fatigue experiments of pipelines are conducted to establish probabilistic-based life models by linear variance regression analysis. Then the established formulas are further verified by the combined results of deterministic finite element analysis and cantilever bending fatigue experiment of hydraulic pipelines. Successive AK-MCS based on ESC is proposed for the fatigue reliability analysis of hydraulic pipelines. The main novelty of successive AK-MCS is that a training information sharing strategy is designed to estimate the failure probabilities under different load cycles. The effectiveness and feasibility of the proposed method is verified by comparing the results of fatigue reliability analysis on cantilever pipeline under an internal pressure of 28 MPa with traditional AK-MCS. Lastly, the influence of internal pressure and survival probability on the relationship between load cycle and failure probability of the cantilever hydraulic pipeline are further discussed.

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来源
《Reliability engineering & system safety》 |2023年第3期|109019.1-109019.13|共13页
作者
Xingkeng Shen; Kaixuan Feng; Heming XuGuangqiang WangYishang ZhangYing DaiWanying Yun;
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作者单位

Research and Development Center, AECC Commercial Aircraft Engine CO., LTD, Shanghai 200241, China;

School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;

School of Aeronautics, Northwestern Polytechnical University, Xian 710072, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Cantilever hydraulic pipeline; Bending fatigue; Reliability analysis; Successive AK-MCS based on ESC;

Reliability analysis of bending fatigue life of hydraulic pipeline

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