An Enhanced Network Learning Method for Dynamic Probabilistic LCF Evaluation of Turbine Blisk

Cheng Wei Fei, Cheng Lu, Wen Zhong Tang

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

To reasonably predict the blisk LCF life, an enhanced network learning method (ENLM) was proposed by integrating neural network of regression with extremum thought. The developed ENLM was mathematically modeled and the method of reliability analysis with the ENLM were investigated. Then the LCF life reliability of a turbine blisk were evaluated utilizing the proposed ENLM by considering thermal-structural interaction and the stochastic characteristics of parameters. It is illustrated in the analysis to the reliability degree of blisk (0.998, 5) and blisk LCF life (9, 419 cycles) under the allowable value 6, 000 cycles, which ensures some life margin for the blisk relative to the deterministic analysis. The comparison of methods reveals that the proposed ENLM has highly-computing efficiency and precision. The advantages of this method will more outstand with the increasing simulations. The outcome of this paper is to develop a promising tool for the reliability-based design optimization of gas turbine blisk LCF life in future work.

源语言英语
主期刊名2019 Prognostics and System Health Management Conference, PHAI-Qingdao 2019
编辑Wei Guo, Steven Li, Qiang Miao
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9781728108612
DOI
出版状态已出版 - 10月 2019
活动10th Prognostics and System Health Management Conference, PHM-Qingdao 2019 - Qingdao, 中国
期限: 25 10月 201927 10月 2019

出版系列

姓名2019 Prognostics and System Health Management Conference, PHM-Qingdao 2019

会议

会议10th Prognostics and System Health Management Conference, PHM-Qingdao 2019
国家/地区中国
Qingdao
时期25/10/1927/10/19

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