| 基于FTA与LS-SVM的航空部件危险性分级方法 |
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| 引用本文： | 李琳,陈云翔,王超哲.基于FTA与LS-SVM的航空部件危险性分级方法[J].系统工程与电子技术,2011,33(11):2445-2448. |
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| 作者姓名： | 李琳 陈云翔 王超哲 |
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| 作者单位： | 空军工程大学工程学院, 陕西 西安 710038 |
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| 基金项目： | “十二五”国防预研基金资助课题 |
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| 摘 要： | 针对目前危险性分级方法的不足,提出了基于故障树分析(fault tree analysis, FTA)与最小支持向量机(least square support vector machine, LS-SVM)的航空部件危险性定量分级方法。首先通过布尔代数法对FTA进行逻辑描述,采用概率重要度表示部件失效的后果严重程度,在此基础上通过LS-SVM对航空部件的危险性进行分级。实例证明,该方法能够准确地反映航空部件对飞行安全的影响。
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| 关 键 词： | 危险性分级 故障树 最小支持向量机 航空部件 |
Risk ranking method for aeronautic components based on FTA and LS-SVM |
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| LI Lin,CHEN Yun-xiang,WANG Chao-zhe.Risk ranking method for aeronautic components based on FTA and LS-SVM[J].System Engineering and Electronics,2011,33(11):2445-2448. |
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| Authors: | LI Lin CHEN Yun-xiang WANG Chao-zhe |
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| Institution: | College of Engineering, Air Force Engineering University, Xi’an 710038, China |
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| Abstract: | Aiming at the deficiency of existing ranking methods on security risk,a method based on fault tree analysis(FTA) and least square support vector machine(LS-SVM) is proposed,which can be used in quantitative safety ranking of the components for aircraft.The fault tree is denoted by Boolean formula firstly,and the effect parameter for failure is acquired according to probability importance degree.And then the hazard ranking of components for aircraft is calculated based on LS-SVM.Its application shows that th... |
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| Keywords: | risk ranking fault tree(FTA) least square support vector machine(LS-SVM) aeronautic component |
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