火炮身管复杂缺陷检测仿真

针对火炮身管内复杂缺陷检测存在的问题,提出利用超声导波检测火炮身管中单一和非单一裂纹缺陷的检测方法.在不断改变各径向磨损量的情况下,分析导波的传播特性;结合Comsol有限元软件仿真,得出不同轴向位置的径向磨损尺寸与导波回波系数之间的多元关系式,设计了超声导波检测的定量方法.该检测可为火炮身管内部缺陷全面检测提供理论基础.

Simulation Research on Complex Defect Detection of Gun Barrel

In view of the problems existing in the detection of complex defects in gun barrel, proposes a detectionmethod using ultrasonic guided wave to detect single and non-single crack defects in gun barrel. Under the condition ofchanging the wear amount of each radial wear, the propagation characteristics of guided wave are analyzed; combinedwith Comsol finite element simulation software, the multivariate relationship between the radial wear size at differentaxial positions and the echo coefficient of guided wave is obtained, and the quantitative method of ultrasonic guidedwave detection is designed. The detection can provide a theoretical basis for the comprehensive detection of gun barrelinternal defects.