基于CIVA仿真的孔壁裂纹超声相控阵检测分析  

Ultrasonic Phased Array Testing Analysis of Hole Wall Crack Based on CIVA Simulation

作　　者：杨鹏飞[1] 宁宁[1] 彭智伟[1] 詹绍正[1] YANG Pengfei;NING Ning;PENG Zhiwei;ZHAN Shaozheng(Aircraft Strength Research Institute,Xi′an 710065,China)

机构地区：[1]中国飞机强度研究所,西安710065

出　　处：《无损探伤》2021年第4期10-13,共4页Nondestructive Testing Technology

摘　　要：针对过盈螺栓连接结构孔壁裂纹的检测,开展了基于CIVA的检测仿真分析,建立了超声相控阵扇扫检测仿真模型,从相控阵扇扫图像中可以有效地分辨缺陷反射回波和结构自身产生的反射回波,研究分析了不同裂纹角度、裂纹长度和裂纹相对位置参数对检测结果的影响。通过相对幅值和扇扫图像对孔壁结构和裂纹信号进行了对比,优化了检测工艺,可以有效地识别孔壁裂纹损伤,对螺栓连接结构孔壁裂纹的原位检测方案设计有一定的指导意义。In view of bolt connection structure crack of hole wall,the ultrasonic phased array ndt simulation is carried out,the ultrasonic phased array scan image can effectively distinguish the defect echo and structure echo.The influence of different parameters including crack angle,crack length and crack position are analyzed,and the ndt process is optimized,the NDT process can effctively recognize the crack of hole wall,which has certain guiding significant to the in suit ndt design of bolt hole wall crack.

关 键 词：螺栓孔壁裂纹 超声相控阵 CIVA仿真 

分 类 号：TG115.28[金属学及工艺—物理冶金]