基于GSPN的机载液压作动系统可靠性模型

doi:CNKI:11-1929/V.20110107.1205.001

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基于GSPN的机载液压作动系统可靠性模型

石健, 王少萍, 王康

北京航空航天大学自动化科学与电气工程学院, 北京 100191

收稿日期:2010-07-27 修回日期:2010-11-19 出版日期:2011-05-25 发布日期:2011-05-19
通讯作者: Tel.: 010-82338933 E-mail: shaopingwang@vip.sina.com E-mail:shaopingwang@vip.sina.com
作者简介:石健(1978- ) 男,博士,讲师。主要研究方向:网络可靠性、机电控制。 Tel: 010-82339890 E-mail: shijian@buaa.edu.cn王少萍(1966- ) 女,博士,教授,博士生导师。主要研究方向:机电控制、故障诊断、液压系统健康管理与寿命预测。 Tel: 010-82338933 E-mail: shaopingwang@vip.sina.com王康(1984- ) 男,博士研究生。主要研究方向:故障诊断、网络可靠性。 Tel: 010-82338917 E-mail: wangkang14team@163.com
基金资助:
国家自然科学基金(61004022);国家"863"计划(2009AA04Z412);"111"计划

GSPN-based Reliability Model of Aircraft Hydraulic Actuator System

SHI Jian, WANG Shaoping, WANG Kang

School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China

Received:2010-07-27 Revised:2010-11-19 Online:2011-05-25 Published:2011-05-19

摘要/Abstract

摘要： 机载液压系统具有余度降级、故障检测、隔离等动态时序过程,传统基于两元可靠性模型很难描述其动态行为和性能降级过程。针对这一问题,采用分层聚类和广义随机Petri网相结合建立了机载液压系统可靠性模型。利用该模型,详细分析了故障检测装置的故障检测率对系统可靠性的影响。分析结果表明,由于故障检测装置故障检测率的影响,机载液压作动系统除了完好状态和正常故障状态,还存在着潜在故障状态和致命危险状态。在实际机载液压系统可靠性设计中,应合理配置系统可靠性参数,使得飞机处于致命危险状态的概率尽可能小。

关键词: 广义随机Petri网, 机载液压系统, 作动器, 检测率, 致命故障, 可靠性模型

Abstract: Many kinds of dynamical processes (such as redundancy degradation, fault detection, and fault isolation) exist in an aircraft hydraulic actuator system (AHAS). This makes it difficult for the traditional reliability analysis based on a two-state model to describe its dynamic behaviors and performance degradation processes. To deal with the issue, this paper combines hierarchical clustering and generalized stochastic Petri nets (GSPN) to build up a reliability model of AHAS. Based on this model, the effect of the fault detection rate of the fault detection devices in AHAS is discussed in detail. The analysis shows that due to this effect, there exists a potential failure state and the state of fatal failure in an aircraft hydraulic actuator system in addition to the operational state and normal failure state. Therefore, in actual reliability design for an aircraft hydraulic system, the rational allocation of system reliability parameters should be designed carefully to ensure that the probability of an aircraft in mortal danger is reduced to the minimum.

Key words: generalized stochastic Petri net, aircraft hydraulic system, actuator, detection rate, fatal failure, reliability model

中图分类号:

石健, 王少萍, 王康. 基于GSPN的机载液压作动系统可靠性模型[J]. 航空学报, 2011, 32(5): 920-933.

SHI Jian, WANG Shaoping, WANG Kang. GSPN-based Reliability Model of Aircraft Hydraulic Actuator System[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(5): 920-933.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

基于GSPN的机载液压作动系统可靠性模型

GSPN-based Reliability Model of Aircraft Hydraulic Actuator System

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