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	A time-reversal defect-identifying method for guided wave inspection in pipes
	Deng F(邓菲) ; Wu B(吴斌) ; He CF(何存富)
	2012-04-13 ; 2012-04-13
中文摘要	The temporal-spatial focusing effect of the time-reversal method on the guided wave inspection in pipes was investigated theoretically in the current research with a transfer function. The amplitude of the time-reversed wave propagating along the pipes was not only determined by the characteristics of the defect and the location for observation but also by the location of the time-reversal transducers. Especially, the quantity of transducers distributed around the pipe in the circumferential direction was found to be important in applying such time-reversal method. The results demonstrate that the time-reversal method can be used to enhance the inspection energy for the guided wave inspection in pipes and to locate the defects in the circumferential directions. Once the time-reversed signals obtained from the guided wave inspection are applied on a numerical model, the defects can be recognized by the motion of the time-reversed wave transmitting along the pipe model. Numerical simulation and experimental results are provided in this paper to illustrate the validity of such defect-identifying method. Copyright © 2008 by ASME.
原文出处	http://dlib.edu.cnki.net/kns50/download.aspx?filename=5FEaOVneJFWekZXMo9UU3gWR4Ikbwkkaud3QFZHVkZndkpWRz5GOGJUdNNmMvpFUiJTVkNGSBF3bqZkbOFkZlhzRGJldJhjWiRWSr40Q052csFleG9kQutmb1dHZZx0RFB3MNR2MDxURzNkM5A1Kt5WNv8mWKNUV&tablename=CJFD2009&dflag=pdfdown 全文链接
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/13168]
专题	北京工业大学
推荐引用方式 GB/T 7714	Deng F,Wu B,He CF. A time-reversal defect-identifying method for guided wave inspection in pipes[J],2012, 2012.
APA	邓菲,吴斌,&何存富.(2012).A time-reversal defect-identifying method for guided wave inspection in pipes..
MLA	邓菲,et al."A time-reversal defect-identifying method for guided wave inspection in pipes".(2012).

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