Automatic recognition of orbit shape for fault diagnosis in steam turbine generator sets

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	Automatic recognition of orbit shape for fault diagnosis in steam turbine generator sets
	Yan, Changfeng1,2 ; Zhang, Hao 2; Wu, Lixiao1
	2010-06-01
发表期刊	Journal of Computational Information Systems
ISSN	15539105
卷号	6 期号:6 页码:1995-2008
摘要	Since the orbit shape and dynamic characteristics of the shaft contain abundant information for the fault diagnosis of rotating machinery and can reflect different faults of rotating machine, the shaft orbit recognition plays an important role in the fault diagnosis of steam turbine generator set. An automatic orbit recognition method is proposed in this paper. That is, the new median morphological filter combined the open-closing with clos-opening is used to eliminate the noise mixed in the original vibration signals in x and y direction, then the image feature are extracted from the shaft orbit reconstructed by using seven improved invariant moment. Input the seven invariant moments to the trained BP neural network, the orbit shape can be identified automatically. In order to study the ability of shape recognition, several white Gaussian noises are mixed in the different shapes, and the change of the moment invariant is observed and analyzed. Two cases are used to verify this model. It is shown that this model is feasible and high precision for identifying the orbit in fault diagnosis. Copyright © 2010 Binary Information Press.
关键词	Image processing Marine engines Neural networks Rotating machinery Rotation Steam Steam turbines Turbogenerators Automatic recognition Invariant moment Morphological filters Shaft orbit Steam turbine generator sets
收录类别	EI
语种	英语
出版者	Binary Information Press, P.O. Box 162, Bethel, CT 06801-0162, United States
EI入藏号	20103913260639
EI主题词	Orbits
EI分类号	741 Light, Optics and Optical Devices - 723.4 Artificial Intelligence - 705.2 Electric Generators - 655.2 Satellites - 617.2 Steam Turbines - 612 Engines - 601.1 Mechanical Devices
来源库	Compendex
分类代码	741 Light, Optics and Optical Devices - 723.4 Artificial Intelligence - 705.2 Electric Generators - 655.2 Satellites - 617.2 Steam Turbines - 612 Engines - 601.1 Mechanical Devices
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111801
专题	机电工程学院
作者单位	1.School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050, China; 2.CIMS Center, Tongji University, Shanghai, 200092, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Yan, Changfeng,Zhang, Hao,Wu, Lixiao. Automatic recognition of orbit shape for fault diagnosis in steam turbine generator sets[J]. Journal of Computational Information Systems,2010,6(6):1995-2008.
APA	Yan, Changfeng,Zhang, Hao,&Wu, Lixiao.(2010).Automatic recognition of orbit shape for fault diagnosis in steam turbine generator sets.Journal of Computational Information Systems,6(6),1995-2008.
MLA	Yan, Changfeng,et al."Automatic recognition of orbit shape for fault diagnosis in steam turbine generator sets".Journal of Computational Information Systems 6.6(2010):1995-2008.