基于HSGT的装备健康状态评估技术

发布时间：2018-01-02 07:25

本文关键词：基于HSGT的装备健康状态评估技术　出处：《振动.测试与诊断》2017年05期 　论文类型：期刊论文

【摘要】：提出了基于健康状态-广义测试相关性(health state-general test,简称HSGT)的健康状态评估技术。首先,根据维修要求将故障严重程度划分成多个离散的健康状态,再按测试输出属性,将测试划分为一系列区间值的广义测试,进而结合系统功能与结构等信息,建立系统健康状态-广义测试相关性矩阵;其次,利用贝叶斯理论,建立基于HSGT的健康状态评估推理模型;最后,使用蒙特卡洛方法生成包含8个被测单元(unit under test,简称UUT)的系统,对所提技术的有效性及可行性进行了仿真验证。结果表明,提出的健康状态评估技术能根据系统测试输出结果,及时、准确地推理出系统中各个UUT的健康状态,评估结果能在故障加剧导致的功能失效前有效触发视情维修(condition based maintenance,简称CBM)的维修决策机制。
[Abstract]:The health condition of generalized correlation test based on (health state-general test, referred to as HSGT) the health condition evaluation technique. Firstly, according to the requirements of the maintenance of the severity of fault is divided into a plurality of discrete health status, according to the test output attributes, will test a series of testing into generalized interval value, and then combined with the system function and the structure of information system, establish health - generalized correlation test matrix; secondly, using Bayesian theory, establish the evaluation model of HSGT based on the health status of reasoning; finally, using Monte Carlo method to generate contains 8 tested units (unit under test, referred to as UUT) system, the effectiveness and feasibility of the proposed technique are studied the simulation. The results show that the health assessment of the proposed techniques can be timely according to the system test results, accurately infer every UUT in the system health assessment The estimation results can effectively trigger the maintenance decision mechanism of the condition based maintenance (CBM) before the failure caused by the failure.

【作者单位】：电子科技大学机械电子工程学院;国防科学技术大学装备综合保障国防科技重点实验室;武警警官学院电子技术系;
【基金】：国家自然科学基金资助项目(61403408)
【分类号】：TH17
【正文快照】： 引言高新技术装备复杂度及集成度的急剧增加给装备的测试维修带来了极大的挑战。为减少装备的维修费用,提高装备的可用性和战斗力,装备的维修保障模式已由传统的事后维修、定期维修向视情维修转变。健康状态评估(health state assessment,简称HSA)作为这些新型保障体系中的关

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