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装备固有测试性评价方法研究

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装备固有测试性评价方法研究
时间:2023-07-11 00:38:39     小编:

摘 要: 固有测试性设计是装备测试性设计的重要内容,在对装备测试性进行验证和评价时,也需要评价其固有测试性。为了解决固有测试性评价方法适用性不强的问题,提出了一种新的装备固有测试性评价方法。在分析固有测试性设计要求的基础上,从检测隔离性能、功能结构划分的合理性、可控性和可观测性四个方面提出了6项评价指标,并利用模糊综合评价模型作为定量分析工具,最终达到量化评价装备固有测试性的目的。为进一步进行装备测试性综合评价或验证奠定了基础。最后通过某型液位传感系统的固有测试性评价实例,验证了该方法的可行性。

关键词: 固有测试性; 装备测试性设计; 评价指标; 模糊综合评价

Methods to evaluate inherent testability of equipments

(1. School of Power Engineering, Naval University of Engineering , Wuhan 430033, China;

2. Department of Management Science, Naval University of Engineering, Wuhan 430033, China;

3. Teaching and Research Office of Thermal Science and Power Engineering, Naval University of Engineering, Wuhan 430033, China)

Abstract: Design of Inherent testability is an significant part of the equipment testability design. It is necessary to evaluate its inherent testability when the equipment testability is verified and evaluated. In order to solve the poor practicability of existing inherent testability evaluation methods, a new method to evaluate the equipment inherent testability is proposed in this paper. Six evaluation indexes involving in property of detection and isolation, rationality, controllability and observability of spaniding functional structures are put forward in this paper on the basis of analysis of the requirements of inherent testability design. In addition, the fuzzy comprehensive evaluation model is adopted as quantitative evaluation method to implement quantitative evaluation of the equipment inherent testability. The method will lay solid foundation for further evaluation of testability. Finally, an example about a certain type of liquid level sensor system proves that the method is effective.

Keywords: inherent testability; equipment testability design; evaluation index; fuzzy comprehensive evaluation

0 引 言

(2) 判断集V={优、良、中、差};

(3) 单因素判断矩阵R,反映单个因素的评判。

设定各因素所占权重为:A={0.25,0.25,0.15,0.15,0.1,0.1},对固有测试性评价的各指标进行加权操作得到评价结果:[B=A?R]

4 模型的分析

以某型液位传感系统为例说明,其构成如图2所示。

图2 液位传感系统结构图

该模块固有测试性对于判断集的隶属度为:

[B=A?R={0.94,0.06,0,0}]

该系统固有测试性评价等级为优。

5 结 语

本文通过建立固有测试性的模糊综合评价模型, 利用拓展的检测率和隔离率指标评价测试点选择的优劣,并将可控性和可观测性指标引入评价模型, 使评估结果更加全面。最后通过实例分析验证了方法的有效性。该项研究成果不仅可以改善装备的固有测试性设计,还能为进一步的装备测试性评估提供依据。

参考文献

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