SIMULATION OF ULTRASONIC PHASED ARRAY FIELD IN WELD BEAD

摘要：

　　The welded components are frequently used in modem industry.The structure of the weld bead is complex and it is extremely prone to defects.Ultrasonic phased array technology can improve the detection signal to noise ratio and flexibly control the focusing position of the acoustic beam, which is suitable for scanning the thick-wall weld bead.In this paper, multi-Gaussian beam is used to simulate the phased array focus acoustic field distribution in the thick-wall weld bead and the beam focusing characteristics in different media.The influence on the focusing effect of the focusing position in the weld bead is analyzed by numerical calculation.It lays the foundation for high-precision detection of the defects in thick-wall weld bead.

关键词： Ultrasonic Phased array Non-Destructive Testing multi-Gaussian beam model Acoustic field distribution

作者: Hui-yu SHI Zhong-cun GUO Shou-guo YAN Bi-xing Zhang

作者单位: State Key Laboratory on Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100 University of Chinese Academy of Sciences, Beijing, 100049, China

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 53-56

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）