Improving EGT sensing data anomaly detection of aircraft auxiliary power unit

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	Improving EGT sensing data anomaly detection of aircraft auxiliary power unit
	Liansheng LIU 2; Yu PENG 2; Lulu WANG 3; Yu DONG 3; Datong LIU 2; Qing GUO 2
刊名	Chinese Journal of Aeronautics
	2020
卷号	33 期号:2 页码:448-455
关键词	Motor vehicles. Aeronautics. Astronautics TL1-4050
ISSN号	1000-9361
其他题名	Improving EGT sensing data anomaly detection of aircraft auxiliary power unit
英文摘要	The reliability of the on-wing aircraft Auxiliary Power Unit (APU) decides the cost and the comfort of flight to a large degree. The most important function of APU is to help start main engines by providing compressed air. Especially on the condition of sudden shutdown in the air, APU can offer additional thrust for landing. Therefore, its condition monitoring has drawn much attention from the academic and industrial field. Among the on-wing sensing data which can reflect its condition, Exhaust Gas Temperature (EGT) is one of the most important parameters. To ensure the reliability of EGT, one kind of data-driven anomaly detection framework for EGT sensing data is proposed based on the Gaussian Process Regression and Kernel Principal Component Analysis. The situations of one-dimensional and two-dimensional input data for EGT anomaly detection are considered, respectively. The cross-validation experiments are carried out by utilizing the real condition data of APU, which are provided by China Southern Airlines Company Limited Shenyang Maintenance Base. The anomalous stuck condition of EGT sensing data is also detected. Experimental results show that the proposed EGT sensing data anomaly detection method can achieve better performance of false positive ratio, false negative ratio and accuracy. Keywords: Anomaly detection, Auxiliary power unit, Condition-based maintenance, Data-driven framework, Exhaust gas temperature
资助项目	[National Natural Science Foundation of China] ; [China Postdoctoral Science Foundation]
语种	英语
CSCD记录号	CSCD:6670709
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/142942]
专题	金属研究所_中国科学院金属研究所
作者单位	1.China Southern Airlines Engineering Technology Research Center 2.School of Electronics and Information Engineering,Harbin Institute of Technology 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Liansheng LIU,Yu PENG,Lulu WANG,et al. Improving EGT sensing data anomaly detection of aircraft auxiliary power unit[J]. Chinese Journal of Aeronautics,2020,33(2):448-455.
APA	Liansheng LIU,Yu PENG,Lulu WANG,Yu DONG,Datong LIU,&Qing GUO.(2020).Improving EGT sensing data anomaly detection of aircraft auxiliary power unit.Chinese Journal of Aeronautics,33(2),448-455.
MLA	Liansheng LIU,et al."Improving EGT sensing data anomaly detection of aircraft auxiliary power unit".Chinese Journal of Aeronautics 33.2(2020):448-455.