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[1]袁晓峰,许化龙,陈淑红.液体火箭发动机故障诊断中的特征优选策略[J].火箭推进,2008,34(06):1-5.
　Yuan xiaofeng,xu Hualong,chen shuhong.An optimized f．eature selection strategy in liquid rocket engine f．ault diagnosis[J].Journal of Rocket Propulsion,2008,34(06):1-5.
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液体火箭发动机故障诊断中的特征优选策略

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 34 期数: 2008年06期 页码: 1-5 栏目: 研究与设计 出版日期: 2008-12-30
Title:
An optimized f．eature selection strategy in liquid rocket engine f．ault diagnosis
作者:
袁晓峰1; 许化龙1; 陈淑红2
1第二炮兵工程学院研四队西安710025；2第二炮兵装备研究院第三研究所北京100085
Author(s):
Yuan xiaofeng1; xu Hualong1; chen shuhong2
1 Second Artillery Engineering Institute，Xi，an 7 10025，China； 2 Second Artinery Annament Academy，Beijing 1 00085，China
关键词:
液体火箭发动机; 粗糙集; 模糊决策; 贪婪算法
Keywords:
liquid mcket engine; rough set; fuzzy decision; greedy algorithm
分类号:
V434
文献标志码:
A
摘要:
针对液体火箭发动机故障诊断中的特征选择问题。提出了一类最小代价模糊决 策模型。在应用中，该模型能够融合各个故障特征参数的先验信息、故障程度，并允许故障 间的关联存在．从而比现有特征选择方法具有广泛的适用性，特征选择结果更贴近工程实际。 同时．给出了基于贪婪算法的模型求解方法，并对某发动机的故障特征集进行了特征优选实 验。实验证明了该方法的有效性。
Abstract:
Tb solve the pmblem of feature selection in liquid rocket engine fault diagnosis，a fuzzy decision model constrained by the minimum cost is pmposed in this paper．In this model，the pdor information of each feature and fault intensity is taken into consideration，and the association between difkrent faults is allowed．Accordingly，it is more nexible than other models，and the feature selection results are more suitable for engineering applica“ons．In addition，a greedy algorithm is pmvided to solve the model．Experiments on a feature set of a liquid rocket engine haVe Validated the effectiveness of the model．

参考文献/References:

[1]张惠军．液体火箭发动机故障检测与诊断技术综述[J]． 火箭推进，2004，30(5)：4045．
[2]刘冰，张育林．液体火箭发动机故障诊断中的特征选择 [J]．推进技术，1998，19(2)：5—8．
[3]张育林，吴建军，朱恒伟，等．液体火箭发动机健康监控 技术[M]．长沙：国防科技大学出版社，1998．
[4]胡小平，张丽娟，王艳梅，等．液体火箭发动机故障检测和 诊断中数据挖掘策略的分析[J]．国防科技大学学报，2005， 27(3)：l一5．
[5]乔斌．粗糙集理论分层递阶约简算法的研究[D]．杭州： 浙江大学．2003．
[6]张文修，仇国芳．基于粗糙集的不确定决策[M]．北京：清 华大学出版社，2005．
[7]Zhang Mei，Wu Weizhi．Knowledge Reduction in lnformation Systems with Fuzzy Decisions[J]．J0umal of Engi- neering Mathematics．2003，20(2)：53—58．

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备注/Memo

收稿日期：2008—04—22；修回日期：2008-06—30。 作者简介：袁晓峰(1975一)，男，博士生，工程师，研究领域为数据挖掘与故障诊断。

更新日期/Last Update: 1900-01-01