Ultrasonic Array Detection Method on Cylindrical Surface Diffusion Weld of Complex Structural Parts

doi:10.3901/JME.2020.22.001

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	Ultrasonic Array Detection Method on Cylindrical Surface Diffusion Weld of Complex Structural Parts
	Li, Wentao 1,3; Zhou, Zhenggan 1,2
刊名	Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
	2020-11-20
卷号	56 期号:22 页码:1-7
关键词	Acoustic waves Acoustics Finite difference time domain method Signal to noise ratio Testing Transducers Ultrasonic testing Welds Complex structural parts Component structure Detection efficiency Detection experiments Low signal-to-noise ratio Prefabricated defects Structural characteristics Ultrasonic testing method
ISSN号	05776686
DOI	10.3901/JME.2020.22.001
英文摘要	A superalloy disc component of aeroengine is fabricated by welding between disc and blade ring. Because of the complexity of component structure, the single element ultrasonic testing method has met same problems such as low detection efficiency and low signal-to-noise ratio of defect signals. In order to improve the detection ability of this kind of structure, the automatic ultrasonic array detection method of the cylindrical weld is studied. Firstly, the effect of relative positions of the planar defect and the acoustic source on the defect refection acoustic pressure is analyzed. The wave conversion conditions of different reflected acoustic waves are analyzed and the pitch and catch method based on dual ultrasonic array transducers is put forward. Then, according to the structural characteristics of the specimen, an acoustic beam transmitting-receiving method and a full coverage inspection scheme for the cylindrical weld are designed. A response simulation model of the ultrasonic array is established based on the finite-difference time-domain (FDTD) method and the detection parameters are designed and optimized. Finally, the detection experiment is carried out on the actual specimen with prefabricated defects, and the results show that the proposed dual ultrasonic array transducer detection method can effectively detect the prefabricated defects with diameter of 2 mm in the cylindrical weld area. © 2020 Journal of Mechanical Engineering.
语种	中文
出版者	Chinese Mechanical Engineering Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151141]
专题	机电工程学院
作者单位	1.School of Mechanical Engineering and Automation, Beihang University, Beijing; 100083, China; 2.State Key Laboratory of Acoustics, Institute of Acoustic, Chinese Academy of Science, Beijing; 100190, China 3.School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Li, Wentao,Zhou, Zhenggan. Ultrasonic Array Detection Method on Cylindrical Surface Diffusion Weld of Complex Structural Parts[J]. Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,2020,56(22):1-7.
APA	Li, Wentao,&Zhou, Zhenggan.(2020).Ultrasonic Array Detection Method on Cylindrical Surface Diffusion Weld of Complex Structural Parts.Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,56(22),1-7.
MLA	Li, Wentao,et al."Ultrasonic Array Detection Method on Cylindrical Surface Diffusion Weld of Complex Structural Parts".Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 56.22(2020):1-7.