基于方差的保障时间不确定性分析

吴勇; 潘星; 康锐; 马麟

基于方差的保障时间不确定性分析

北京航空航天大学可靠性与系统工程学院, 北京 100191

基金项目: 国家自然科学基金资助项目（71171008）

详细信息

中图分类号: TB114.3
计量
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- 被引次数: 0
出版历程
- 收稿日期: 2013-06-28
- 网络出版日期: 2013-11-30

Variance-based uncertainty analysis methods of logistic support time

School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 装备的保障过程由于受到保障活动参数的影响存在着较大的不确定性.针对保障过程的不确定性问题，建立了基于方差的保障活动不确定性重要度作为保障过程全局敏感性分析指标；根据保障过程工期的GERT（Graphic Evaluation and Review Technique）模型，设计了一种基于方差的保障时间不确定分析方法来计算保障活动的时间不确定性重要度，并对该方法进行解析求解，给出了具体步骤.最后，将舰载机航空保障作为案例，验证了方法的有效性.
- 保障过程工期 /
- 全局敏感性分析 /
- 不确定性分析 /
- 图示评审技术
Abstract: Uncertainty in logistics support process is present under the influence of support activities parameters. In this work, global sensitivity indicator was introduced which looks at the influence of input uncertainty on the entire output distribution without reference to a specific moment of the output and which can be defined also in the presence of correlations among the parameters. Variance-based uncertainty analysis method with the graphic evaluation and review technique(GERT) model of logistic support process duration was designed. And then, an analytic algorithm to calculate the uncertainty analysis was designed with GERT. At last, the analytic algorithm was used to analysis the aircraft support activities uncertainty analysis. Given the limited support resources, the uncertainty analytic algorithm is helpful for a decision maker to identify the most important input parameters that control the uncertainty in the model output.
- logistic support process duration /
- global sensitivity analysis /
- uncertainty analysis /
- GERT

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参考文献(19)

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