| 基于VPRS理论的航空发动机送修等级决策 |
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| 引用本文： | 张海军,左洪福,梁剑.基于VPRS理论的航空发动机送修等级决策[J].南京航空航天大学学报(英文版),2005,22(4):281-284. |
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| 作者姓名： | 张海军 左洪福 梁剑 |
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| 作者单位： | 南京航空航天大学民航学院,南京,210016,中国 |
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| 摘 要： | 应用变精度粗糙集理论研究了发动机状态信息与单元体性能参数之间的关系，提出了一种基于信息熵属性约简的航空公司发动机维修等级决策方法，从而在维修决策时能够更加客观地反映发动机实际损伤程度。最后以CF6型发动机维修等级决策规则生成为例说明了该决策方法的有效性。
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| 关 键 词： | 可修复系统 航空发动机 维修等级 变精度粗糙集 属性约简 |
| 收稿时间： | 04 5 2005 12:00AM |
| 修稿时间： | 09 27 2005 12:00AM |
MAINTENANCE LEVEL DECISION OF AERO-ENGINE BASED ON VPRS THEORY |
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| ZHANG Hai-jun,ZUO Hong-fu,LIANG Jian.MAINTENANCE LEVEL DECISION OF AERO-ENGINE BASED ON VPRS THEORY[J].Transactions of Nanjing University of Aeronautics & Astronautics,2005,22(4):281-284. |
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| Authors: | ZHANG Hai-jun ZUO Hong-fu LIANG Jian |
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| Institution: | College of Civil Aviation, NUAA, 29 Yudao Street, Nanjing, 210016, P. R. China |
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| Abstract: | An aero-engine is a typically repairable and complex system and its maintenance level has a close relationship with the maintenance cost. The inaccurate measurement for the maintenance level of an aero-engine can induce higher overhaul maintenance costs. Variable precision rough set (VPRS) theory is used to determine the maintenance level of an aero-engine. According to the relationship between condition information and performance parameters of aero-engine modules, decision rules are established for reflecting the real condition of an aeroengine when its maintenance level needs to be determined. Finally, the CF6 engine is used as an example to illustrate the method to be effective. |
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| Keywords: | repairable system aero-engine maintenance level variable precision rough set attribute reduction |
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