Model-based Optimization of Phased Array Ultrasonic Testing

摘要：

Simulation of phased array beams in dovetail and austenitic welds is conducted in this paper to optimize the setup of phased array ultrasonic testing (paut). to simulate the beam in such material with complex geometry or with characteristic of anisotropy and inhomogeneity, firstly, linear phased multigaussian beam(lpmgb) models are introduced and discussed, then, in the case of dovetail, wedge is designed to maximize the stable amplitude of the beam along the steering path; in the case of austenitic weld, modified focal law are developed to solve the problem of beam screwing and defocusing due to the material properties, to verify the effectiveness of the modified focal law, beam fields are calculated using lpmgb model in austenitic welds.

作者: Sung-Jin Song Ye Jing Hak-Joon Kim Suk-Chull Kang Sung-Sik Kang Kyungcho Kim Myung-Ho Song

作者单位: School of Mechanical Engineering, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu 440-746, Kor Korea Institute of Nuclear Safety, Daejeon 305-338, Korea

会议类型: 国际会议

会议名称: 2nd China-Korea Ioint Workshop on Ultrasonic Nondestructive Evaluation(第二届中韩双边超声无损评估学术会议)

会议地点: 上海

会议语种:英文

页码: 26-35

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）