航天推进技术研究院主办
Yuan Xiaofeng,Xu Hualong,Chen Shuhong,et al.Similarity-search based mining for fault mode of liquid rocket engine[J].Journal of Rocket Propulsion,2008,34(04):48-54.
基于相似匹配的液体火箭发动机 故障模式挖掘
- Title:
- Similarity-search based mining for fault mode of liquid rocket engine
- Keywords:
- time series; ordinal pattern; similarity search; en舀ne
- 分类号:
- V434
- 文献标志码:
- A
- 摘要:
- 将时间序列相似性匹配方法引入到液体火箭发动机故障模式挖掘中。针对发动 机试车数据的特点。提出了一种基于序变换的时间序列相似匹配算法。该算法具有对时f.-I序 列幅值和持续时间不敏感、抗噪声能力强等优点。对某型液体火箭发动机故障数据的相似匹 配实验表明:该算法能够为液体火箭发动机的故障检测和诊断提供较好的技术支持。
- Abstract:
- The method of time series similarity matching(TSSM)is introduced in the fault mode mining of the liquid rocket engine(LRE).According to the feature of fire—test data,an ordi— nal transformation based algorithm is proposed,which is insensitive to amplitude,time span and noises of the time series.The TSSM experiments on the data of some LRE indicated that it is quite supportive to fault detection and diagnosis.
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备注/Memo
收稿日期:2008--03—10;修回日期:2008—06-13。 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。