Abstract
In this paper, aiming at the low efficiency of defect detection of weapon equipment, ultrasonic guided wave non-destructive testing technology is proposed to detect the radial wear defects in gun barrel which have a great impact on its combat effectiveness. At the same time, the sensitivity of different modes of L0,2 and t0,1 ultrasonic guided waves to the detection of such defects is analyzed in this paper, so as to provide theoretical guidance for the mode selection of ultrasonic guided waves in the next practical detection of gun barrel.
Highlights
Ultrasonic guided wave detection technology has developed rapidly. Researchers have used ultrasonic guided wave technology to detect defects in metal structures
In recent years, ultrasonic guided wave detection technology has developed rapidly
The ratio of the maximum amplitude of T 0,1 mode ultrasonic guided wave echo signal to the maximum amplitude of excitation signal is defined as echo coefficient, which reflects the influence of wear defect radial scale change on guided wave propagation
Summary
Ultrasonic guided wave detection technology has developed rapidly. Researchers have used ultrasonic guided wave technology to detect defects in metal structures. A certain type of barrel is taken as the research object, the outer diameter of the barrel is 77.5 mm, the inner diameter is 62.5 mm, and a crack with width of 1 mm SENSITIVITY ANALYSIS OF RADIAL DEFECT DETECTION OF GUN BARREL BASED ON ULTRASONIC GUIDED WAVE.
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