| 改进D-S算法在船舶汽轮机故障诊断中的应用研究 |
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| 引用本文： | 郝军,吴炜,杨栈.改进D-S算法在船舶汽轮机故障诊断中的应用研究[J].船海工程,2007,36(3):49-51. |
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| 作者姓名： | 郝军 吴炜 杨栈 |
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| 作者单位： | 1. 中国舰船研究设计中心,武汉,430064
2. 海军驻426厂军代表室,大连,116000 |
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| 摘 要： | 针对汽轮机组的故障特征,将多个传感器获得的实时信号进行特征提取,对D-S证据理论在应用中不合理处进行改进。应用比较的结果表明,改进后的算法公式可信度明显提高,不确定性大大降低。
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| 关 键 词： | 汽轮机 故障诊断 D-S证据理论 |
| 文章编号： | 1671-7953(2007)03-0049-03 |
| 修稿时间： | 2006年11月2日 |
Application of the improved D-S algorithm in fault diagnosis of ship's turbine-machinery |
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| Authors: | HAO Jun WU Wei YANG Zhan |
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| Institution: | HAO Jun1 WU Wei1 YANG Zhan21.China Ship Design Institution Wuhan 4300642.Naval Dept.of Representative of 426 Factory Dalian 116000 |
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| Abstract: | According to the fault's characteristics of the ship's turbine-machinery,the useful signals were selected from the real-time ones of multi-sensors for the fault diagnosis.The D-S theory of evidence was analyzed and modified to get a new rational formula.This paper compared the new algorithm with the old formula in the application of the fault diagnosis and found that the reliability of the diagnose system with the new algorithm was obviously improved,and its indeterminacy reduced largely. |
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| Keywords: | turbine-machinery fault diagnosis D-S theory of evidence |
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