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论文:2020,Vol:38,Issue(6):1316-1321 |
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引用本文： |
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王成, 许建新, 张振明, 王红军. 基于成本效益重要度的复杂系统可靠性保障策略[J]. 西北工业大学学报 |
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WANG Cheng, XU Jianxin, ZHANG Zhenming, WANG Hongjun. Reliability Guarantee Strategy for Complex System Based on Cost-Benefit Importance[J]. Northwestern polytechnical university |
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| 基于成本效益重要度的复杂系统可靠性保障策略 |
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| 王成1, 许建新2, 张振明2, 王红军3 |
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1. 西安航空学院 机械工程学院, 陕西 西安 710077;
2. 西北工业大学 机电学院, 陕西 西安 710072;
3. 北京信息科技大学 现代测控技术教育部重点实验室, 北京 100192 |
| 摘要: |
| 为了保障复杂系统的长期稳定经济运行，对系统运行过程和需要解决的问题进行了描述，构建了系统可靠性模型和组件更换优化模型，采用边际效应思想和重要度理论，提出了一种基于成本效益重要度的复杂系统可靠性保障策略，旨在寻求以系统可靠度下限阈值和运行时长为约束、以维护成本最小为目标的组件预防更换序列。当系统可靠度下降到预设阈值时，计算系统各组件的成本效益重要度，选择成本效益重要度最大的组件进行更换，如此进行迭代，直到完成运行任务，形成最优的组件更换序列。以可等效为串并联系统的复杂系统为例验证了该策略的可行性。该策略对保障一些高端装备安全关键系统的可靠运行具有一定的参考意义。 |
| 关键词:
复杂系统
可靠性保障
成本效益重要度
边际效应
预防更换
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| Reliability Guarantee Strategy for Complex System Based on Cost-Benefit Importance |
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| WANG Cheng1, XU Jianxin2, ZHANG Zhenming2, WANG Hongjun3 |
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1. School of Mechanical Engineering, Xi'an Aeronautical University, Xi'an 710077, China;
2. School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
3. Key Laboratory of Modern Measurement and Control Technology of Ministry of Education, Beijing Information Science and Technology University, Beijing 100192, China |
| Abstract: |
| In order to ensure the long-term stable and economic operation of complex system, the system operation process is described and the problems is solved, and a system reliability model and an optimization model for component replacement are constructed. Based on the theory of marginal utility and importance measures, a reliability guarantee strategy for complex system based on cost-benefit importance is presented, which aims to find a component preventive replacement sequence with minimum maintenance cost on the constraints of system reliability lower threshold and running time. When the system reliability drops to a preset threshold, the cost-benefit importance of each component is calculated, the component with the greatest cost-benefit importance to replace is selected, and then iterate until the operation task is completed to form an optimal component replacement sequence. The feasibility of the present strategy is verified by taking a complex system which can be equivalent to a series-parallel system as an example. The present strategy has certain reference significance of ensuring the reliable operation of some high-end equipment safety-critical systems. |
| Key words:
complex system
reliability guarantee
cost-benefit importance
marginal utility
preventive replacement
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| 收稿日期: 2020-01-06
修回日期:
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| DOI: 10.1051/jnwpu/20203861316 |
| 基金项目: 国家自然科学基金（51975058）与国家科技重大专项（2015ZX04001002）资助 |
| 通讯作者:
Email： |
| 作者简介: 王成(1984-),西安航空学院讲师,主要从事设备故障诊断与维修保障、知识工程研究。
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