Mission reliability allocation method considering multiple factors for repairable systems
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摘要:
在实际工程中，系统常常是由串联、并联、旁联和表决等模型混合而成的复杂可修系统，目前此类系统的可靠性分配方法多采用等分分配等方法，得到的分配结果往往误差较大。本文提出了一种考虑维修、故障逻辑等多因素影响的可修系统任务可靠性分配方法。该方法以系统故障率为待分配指标，首先对包含维修影响的故障率进行转换，然后利用考虑故障逻辑的评分分配法进行分配，最后通过备件系数进行修正，获得分配结果。新方法能够为在实际工程中可修系统的任务可靠性分配提供一种简便易行的方法。
Abstract:In practical engineering, a system is usually complex and repairable. Its reliability model is not a series model but a mixed model of series, parallel, bypass and voting. The equal-distribution method is used mostly to allocate mission reliability for complex system at present. The allocation result using this method is always not accurate. Therefore, a mission reliability allocation method for repairable system considering the effects of maintenance, fault logic and other factors was proposed in this paper. First, the failure rate was calculated to remove the effect of maintenance. Then the scoring allocation method considering failure logic was adopted to allocate mission reliability. After that, the spare part coefficient was used to correct the allocation result. Finally, a case was analyzed to validate the method, which could provide an easy and effective way to allocate mission reliability for repairable systems in practical engineering.
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Key words:
- mission reliability allocation /
- mixed model /
- scoring allocation /
- spare part correction /
- maintenance
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图 1 可修系统任务可靠度分配流程
Figure 1. Process of mission reliability allocation for repairable system
表 1 评分表示例
Table 1. Score form example
分系统A πf πj πt πe 得分 子系统A1 af1 aj1 at1 ae1 wA1 子系统A2 af2 aj2 at2 ae2 wA2 子系统Ai aif aij ait aie wAi 
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表 2 第1层总系统打分汇总
Table 2. First-level score for whole system
系统 编号 复杂度 技术水平 工作时间 环境条件 串联系统 分系统1 10 7 5 4 分系统2 10 6 6 6 分系统3 8 8 8 8 分系统4 8 9 9 5 分系统5 6 10 6 6 并联系统 单元3A 10 8 7 5 单元3B 10 9 8 6 表决系统 单元5A 10 8 7 5 单元5B 10 9 8 6 单元5C 10 7 8 5
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表 3 第1层任务可靠性分配结果
Table 3. Mission reliability allocation results of the first level
系统编号 被分配的故障率/h-1 分系统1 0.000 139 分系统2 0.000 215 分系统3 0.000 408 分系统4 0.000 323 分系统5 0.000 215
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表 4 第2层任务可靠性分配结果
Table 4. Mission reliability allocation results of the second level
系统 编号 被分配的故障率/h-1 并联系统 单元3A 0.000 833 单元3B 0.001 285 表决系统 单元5A 0.000 216 单元5B 0.000 333 单元5C 0.000 216
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表 5 维修性分配结果
Table 5. Results of maintenance allocation
h-1 编号 分配的修复率 分配的MTTR 分系统1 0.268 1 3.73 分系统2 0.413 6 2.41 分系统4 0.620 4 1.61 单元3A 0.616 7 1.62 单元3B 0.951 4 1.05 单元5A 0.350 2 2.85 单元5B 0.540 3 1.85 单元5C 0.350 2 2.85
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表 6 任务可靠度分配结果
Table 6. Mission reliability allocation results
h-1 编号 备件修正前故障率分配值 备件修正后故障率最终分配值 分系统1 0.000 139 0.000 141 分系统2 0.000 215 0.000 220 分系统4 0.000 323 0.000 323 单元3A 0.000 659 0.000 659 单元3B 0.001 017 0.001 017 单元5A 0.000 216 0.000 216 单元5B 0.000 333 0.000 333 单元5C 0.000 216 0.000 216
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表 7 可靠度分配结果对比
Table 7. Comparison of mission reliability allocation results
h-1 编号 忽略维修影响的故障率分配值 考虑维修影响的故障率分配值 分系统1 0.000 107 0.000 141 分系统2 0.000 165 0.000 220 分系统4 0.000 248 0.000 323 单元3A 0.000 641 0.000 659 单元3B 0.000 989 0.001 017 单元5A 0.000 166 0.000 216 单元5B 0.000 256 0.000 333 单元5C 0.000 166 0.000 216
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[1] KAPUR K C, LAMBERSON L R.Reliability in engineering design[M].Washington, D.C.:John Wiley & Sons, 1977:405-414. [2] KECECIOGLU D.Reliability engineering handbook[M].2nd ed.Englewood:PTR Prentice Hall, 1991:363-399. [3] CLEMENT L M.Reliability of military electronic equipment[J].Journal of the British Institution of Radio Engineers 1956, 16(9):488-495. doi: 10.1049/jbire.1956.0050 [4] FALCONE D, SILVESTRI A, BONA D.Integrated factor method (IFM): A new reliability allocation technique[C]//Proceedings of the IASTED International Conference on Software Engineering and Applications, 2002: 166. [5] SILVESTRI A, FALCONE D, BONA G D, et al.A new method for reliability allocation:Critical flow method[J].Lecture Notes in Control & Information Sciences, 2015, 20:249-261. http://d.old.wanfangdata.com.cn/OAPaper/oai_arXiv.org_gr-qc%2f9908059 [6] CHANG Y C, CHANG K H, LIAW C S.Innovative reliability allocation using the maximal entropy ordered weighted averaging method[J].Computers & Industrial Engineering, 2009, 57(4):1274-1281. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=fe243bf696e61aee51600cca7ae67608 [7] AMARI S V, HEGDE V.New allocation methods for repairable systems[C]//Reliability & Maintainability Symposium.Piscataway: IEEE Press, 2006: 290-295 [8] 冯川, 汪文峰, 杨建军.使用可用度分配模型研究[J].电子产品可靠性与环境试验, 2009, 27(6):49-53. doi: 10.3969/j.issn.1672-5468.2009.06.012FENG C, WANG W F, YANG J J.Research on the use of availability allocation model[J].Electronic Product Reliability and Environmental Testing, 2009, 27(6):49-53(in Chinese). doi: 10.3969/j.issn.1672-5468.2009.06.012 [9] ELEGBEDE C, ADJALLAH K.Availability allocation to repairable systems with genetic algorithms:A multi-objective formulation[J].Reliability Engineering & System Safety, 2003, 82(3):319-330. http://www.sciencedirect.com/science/article/pii/S0951832003001790 [10] DUGAN J B.Automated analysis of phased-mission reliability[J].IEEE Transactions on Reliability, 1991, 40(1):45-52. doi: 10.1109/24.75332 [11] TESSERON J M.Mission:Reliability[J].Power & Energy Magazine IEEE, 2008, 6(1):42-48. http://d.old.wanfangdata.com.cn/Periodical/bgxb201705021 [12] GHODRATI B, KUMAR U.Reliability and operating environment-based spare parts estimation approach[J].Journal of Quality in Maintenance Engineering, 2005, 11(2):169-184. doi: 10.1108/13552510510601366 [13] 张志华, 应新雅, 费广玉.串联系统备件满足率分配及配置优化[J].系统工程理论与实践, 2015, 35(11):2987-2992. doi: 10.12011/1000-6788(2015)11-2987ZHANG Z H, YING X Y, FEI G Y.Spare part rate allocation and configuration optimization of series system[J].Systems Engineering-Theory & Practice, 2015, 35(11):2987-2992(in Chinese). doi: 10.12011/1000-6788(2015)11-2987 [14] CHEN C H, YANG Z J, CHEN F, et al.The study of reliability modeling of machining center based on Blocksim and Weibull++[J].Applied Mechanics & Materials, 2013, 274:49-52. [15] CARLUCCI E, TOGNARELLI L.Mixed Weibull distribution as best representative of forced outage distribution to be implemented in BlockSim[C]//ASME 2014 Power Conference.New York: ASME, 2014: V001T06A009. -
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