基于多信号模型的航天器供电系统测试性建模与分析  

Testability Modeling and Analysis of Spacecraft Power Supply System Based on Multi-signal Flow Diagram

作　　者：张强[1] 胡骏[1] 胡政[2] 李鸿飞[1] 

机构地区：[1]中国空间技术研究院载人航天总体部,北京100094 [2]国防科技大学机电工程与自动化学院,长沙410073

出　　处：《载人航天》2012年第6期39-46,61,共9页Manned Spaceflight

基　　金：载人航天领域预先研究项目(020108)

摘　　要：在产品设计阶段进行测试性设计可提高产品的固有测试性,基于多信号流图的测试性设计方法是复杂系统测试性设计的重要手段。使用该方法,以一型号载人航天器供电系统为研究对象,对其进行建模、分析和优化。仿真结果表明:该方法可以提高供电系统的故障检测率和隔离率,减小模糊组大小,优化后供电系统的测试性设计品质参数得到了提高。Testability design can improve the inherent testability of product. The design method based on multi-signal flow diagram is an important approach for the testability design of complex system. This method is used in the testability design for the power supply system of a certain manned spacecraft. Results of modeling and optimization show that this method can improve the fault detection rate and fault isolation rate of the power supply system, while at the same time reduce the size of the fuzzy group. The testability design quality parameters of the optimized power supply system have been improved.

关 键 词：航天器 供电系统 测试性设计 多信号流图 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程]