A Fault Diagnosis Method of Engine Rotor Based on Random Forests

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	A Fault Diagnosis Method of Engine Rotor Based on Random Forests
	Qi Yao; Jian Wang; Lu Yang; Haixia Su; Guigang Zhang
	2016
会议日期	2016-6-20
会议地点	加拿大渥太华
关键词	Fault Diagnosis Engine Rotor Random Forests Svm
英文摘要	Rotor is the main part of the engine, the vibration fault is very common in the process of running, it must be monitored, checked, excluded in a timely manner for improving the reliability of engine and aircraft safety. This paper mainly studies four kinds of rotor fault, including unbalance, misalignment, surge, bearing failure. The frequency spectrum of the vibration signal of a rotor system is an important basis for rotor fault diagnosis, using the spectrum of rotor to build decision tree analysis is an important method for rotor fault detection. As the single decision tree’s anti-interference ability is very poor, this paper presents an engine rotor fault diagnosis method based on Random Forests. Experimental results show that the accuracy of this diagnosis method is high, the failures can be diagnosed timely and effectively to keep the engine in normal operation. To evaluate the validity of Random Forests, a SVM classifier is trained for comparison. Compare with SVM, we obtain better classification in Random Forests algorithm. This result demonstrates that Random Forests algorithm is a valid method for engine rotor.
会议录	2016PHM
内容类型	会议论文
源URL	[http://ir.ia.ac.cn/handle/173211/11812]
专题	数字内容技术与服务研究中心_智能技术与系统工程
通讯作者	Jian Wang
作者单位	中国科学院自动化研究所
推荐引用方式 GB/T 7714	Qi Yao,Jian Wang,Lu Yang,et al. A Fault Diagnosis Method of Engine Rotor Based on Random Forests[C]. 见:. 加拿大渥太华. 2016-6-20.