欢迎访问《兵工学报》官方网站,今天是 分享到:

兵工学报 ›› 2020, Vol. 41 ›› Issue (4): 792-798.doi: 10.3969/j.issn.1000-1093.2020.04.018

• 论文 • 上一篇    下一篇

基于通用发生函数与成功流法的多态系统可靠性分析算法研究

曹慧1, 段富海1, 江秀红2   

  1. (1.大连理工大学 机械工程学院, 辽宁 大连 116024;2.沈阳航空航天大学 电子信息工程学院, 辽宁 沈阳 110136)
  • 收稿日期:2019-06-28 修回日期:2019-06-28 上线日期:2020-06-02
  • 作者简介:曹慧(1985—),女,博士研究生。E-mail: caoh1128@mail.dlut.edu.cn
  • 基金资助:
    航空科学基金项目(20150863003)

Research on Reliability Analysis of Multi-state System Based on UGF and GO Methodology

CAO Hui1, DUAN Fuhai1, JIANG Xiuhong2   

  1. (1.School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China;2.College of Electronic and Information Engineering, Shenyang Aerospace University, Shenyang 110136, Liaoning, China)
  • Received:2019-06-28 Revised:2019-06-28 Online:2020-06-02

摘要: 针对成功流(GO)法可靠性分析过程复杂问题,将通用发生函数(UGF)与GO法结合,提出适用于复杂系统可靠性分析的UGF-GO算法。该算法通过分析GO图中各操作符结构关系,建立相应的系统结构UGF计算公式分析系统可靠性,不仅降低了GO图的计算复杂度,而且还简化了GO图共有信号修正过程。通过对比概率公式算法与UGF-GO算法的可靠性分析结果,验证了UGF-GO算法应用于复杂多态系统可靠性分析的有效性与简便性。UGF-GO算法应用于某型飞机供电系统,结果表明从失效机理到退化建模,UGF-GO算法能完整地分析具有性能退化行为的系统可靠性。

关键词: 多态系统, 成功流法, 共有信号, 通用发生函数, 可靠性

Abstract: To solve the complex reliability analysis problem of basic GO methodology, a UGF-GO methodology based on the universal generating function (UGF) and GO methodology is proposed to analyze the reliability of complex multi-state system. The proposed methodology can be used to analyze the structure relation among various operators in GO chart and obtain the system reliability based on the corresponding universal generating function (UGF). The UGF-GO methodology can not only reduce the computational complexity of GO chart, but also simplify the correction process of shared signals. The simplicity and effectiveness of UGF-GO methodology are proved by comparing the reliability analyses of UGF-GO methodology and probability formula algorithm. The UGF-GO methodology is applied to analyze the degradation reliability of an aircraft power supply system. The simulated results show that UGF-GO methodology can be used completely to analyze the reliability of system with degradation behavior from failure mechanism to degeneration modeling. Key

Key words: multi-statesystem, GOmethodology, sharedsignal, universalgeneratingfunction, reliability

中图分类号: