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A Research on Portable Ultrasound Imaging Detection of Locomotive Axle

Author: LiPeng
Tutor: ZuoYongPing
School: Beijing Jiaotong University
Course: Optical Engineering
Keywords: Locomotive axle Small-angle probe Imaging detection
CLC: TH878.2
Type: Master's thesis
Year: 2011
Downloads: 73
Quote: 4
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Abstract


Solid axle railway testing for a single probe-based manual testing method testing method, the efficiency of this approach and the use of low false positive rate of detection, shear wave angle probe to the disintegration of the vehicle. To make up for a single probe manual testing methods shortcomings and deficiencies in the analysis of the axle defect causes, types, and the stress concentration region, the paper selected small angle longitudinal wave testing method, based on this method a combination of probes can be realized without disassembly Axle in service in case of ultrasonic testing.Firstly, longitudinal wave small angle about the principle and characteristics testing method, detailed analysis of the combination of small angle longitudinal wave probe coverage of the sound field, and within range of the sound field interference signals that may occur are discussed.Then introduced the portable ultrasound imaging detection system. Describes the overall structure of the system, analyzed the composition and function of the system hardware, introduces the A scan and B scan the software functionality.Finally the system detects the RD2 shaft axis and 290 artificial defects, and testing the effects of this system is verified and evaluated.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Material testing machine and test equipment > Nondestructive flaw detector > Ultrasonic flaw detector
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