核电混凝土相控阵超声检测的数值模拟分析  

Numerical simulation analysis of phased array ultrasonic detection of nuclear power concrete

作　　者：程宝谊 刘卫东[1] 王东辉[2] 钟志民[2] 邓伟 CHENG Baoyi;LIU Weidong;WANG Donghui;ZHONG Zhimin;DENG Wei(School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China;China Nuclear Power Plant Operation Service Technology Co.,Ltd.,Shanghai 200233,China)

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]国核电站运行服务技术有限公司,上海200233

出　　处：《无损检测》2024年第4期35-41,共7页Nondestructive Testing

基　　金：国家重大专项(2018ZX06002008)。

摘　　要：基于核电混凝土预设缺陷的相控阵超声检测试验,采用COMSOL软件进行模拟分析和模型的可靠性验证。采用验证后的模拟方法来研究不同相控阵阵列偏转角度和聚焦距离对超声检测的影响。结果表明,相控阵超声检测是一种有效的无损检测方法,COMSOL多物理场模拟软件能够正确模拟声束在缺陷混凝土中的传播规律;相控阵阵列采用不同的声束偏转角度和聚焦距离对检测结果有一定影响。该结论为混凝土检测用相控阵超声探头的工程设计提供了一定参考。Based on the experiments of the phased array ultrasonic testing of preset defects of nuclear power concrete,the simulation analysis of phased array measurement and the reliability verification of the model were verified by COMSOL.Furthermore,the verified simulation method was used to study the influence of different deflection angles and focusing distances of phased array arrays on ultrasonic detection,which provided a reference for the engineering design of ultrasonic phased array probes.The results showed that phased array ultrasonic testing was an effective nondestructive testing method.COMSOL multiphysics simulation software can correctly simulate the propagation of sound beams in defective concrete;The phased array used different beam deflection angles and focusing distances,which have an impact on the detection results.This conclusion provided reference for the engineering design of phased array ultrasonic probes for concrete testing.

关 键 词：核电混凝土 相控阵超声 缺陷识别 数值模拟 

分 类 号：TU528[建筑科学—建筑技术科学] TG115.28[金属学及工艺—物理冶金]