考虑FDR的复杂机电装备测试性建模技术  

Research on method of modeling complex electro-mechanical system for testability based on contract index

作　　者：文学栋[1,2] 贺国[3] 马志强 王鹏 

机构地区：[1]海军工程大学动力工程学院,武汉430033 [2]海军青岛地区装备修理监修室,山东青岛266000 [3]海军工程大学管理工程系,武汉430033

出　　处：《海军工程大学学报》2016年第4期54-58,共5页Journal of Naval University of Engineering

基　　金：国家自然科学青年基金资助项目(51509255)

摘　　要：针对当前测试性研究中存在装备合同中测试性指标量化不足、测试性建模研究中对完备故障模式集研究不充分的现象,提出了一种利用装备合同指标给出完备故障模式子集并对测试性设计中的故障模式、影响和危害分析(failure modes,effect and criticality Analysis,FMECA)方案进行评价的新方法。在给出测试性多信号模型和提出完备故障模式(子)集概念的基础上,研究了成败型一次计数抽样模型构造测试性完备故障模式子集的方案,给出了FMECA方案的评定标准,确定了测试性模型中完备故障模式子集的样本量,最后以某船用动力装置监控系统开展了案例应用研究。结果表明:该方案与传统自行确定故障模式集的方法相比,可快速确定总体质量和样本量,提高测试性建模效率,降低工程风险。In order to solve the quantification problem for testability indexes and the inadequate study for complete fault pattern sets in the current research of testability, a complete fault pattern subset is given by using the index of equipment contract. And a new method to evaluate scheme of failure modes, effect and criticality analysis （FMECA） is also provided. Based on the multi signal model and the given concept of complete fault set （subset）, the primary sampling model of success or failure is applied to construct the complete fault pattern subset of testability. An evaluation criterion for FMECA scheme is presented. Furthermore, the sample size of the complete fault pattern subset in the testability model is determined. Finally, a case study of a monitoring system for marine power plant is carried out. Compared with the traditional method, the new model can quickly determine the overall sample size, improve efficiency and reduce the risk of testability engineering.

关 键 词：船舶动力装置 测试性 FDR 完备故障模式集 抽样方案 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]