|Table of Contents|

An optimized f．eature selection strategy in liquid rocket engine f．ault diagnosis(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2008年06期
Page:
1-5
Research Field:
研究与设计
Publishing date:

Info

Title:
An optimized f．eature selection strategy in liquid rocket engine f．ault diagnosis
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
Keywords:
liquid mcket engine; rough set; fuzzy decision; greedy algorithm
PACS:
V434
DOI:
-
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．

References:

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[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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Last Update: 1900-01-01