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

doi:10.3901/JME.2020.22.001

IR > 机电工程学院

	Ultrasonic Array Detection Method on Cylindrical Surface Diffusion Weld of Complex Structural Parts
	Li, Wentao1,2 ; Zhou, Zhenggan 1,3
	2020-11-20
发表期刊	Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
ISSN	05776686
卷号	56 期号:22 页码:1-7
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.
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
DOI	10.3901/JME.2020.22.001
收录类别	EI
语种	中文
出版者	Chinese Mechanical Engineering Society
EI入藏号	20210309792771
EI主题词	Time domain analysis
EI分类号	538.2 Welding ; 716.1 Information Theory and Signal Processing ; 751 Acoustics, Noise. Sound ; 751.1 Acoustic Waves ; 753.3 Ultrasonic Applications ; 921 Mathematics
引用统计	无
文献类型	期刊论文
条目标识符	https://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.School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.State Key Laboratory of Acoustics, Institute of Acoustic, Chinese Academy of Science, Beijing; 100190, China
第一作者单位	兰州理工大学
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.