| 王炯耿,姚晖,罗宏建,焦敬品*,刘帅开,何存富,吴斌.铝制容器焊缝超声阵列成像方法研究[J].实验力学,2018,33(4):517~524 |
| 铝制容器焊缝超声阵列成像方法研究 |
| Study of ultrasonic array imaging method for weld seam of aluminum vessel |
| 投稿时间：2017-03-05 修订日期：2017-05-29 |
| DOI：10.7520/1001-4888-17-045 |
| 中文关键词: 焊缝 斜入射 超声阵列 全聚焦成像 无损检测 |
| 英文关键词:weld seam oblique incidence ultrasonic array total focusing method (TFM) non-destructive examination (NDE) |
| 基金项目:国网浙江省电力公司科技项目，项目编号：5211DS140059 |
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| 中文摘要: |
| 针对铝制容器焊缝内部缺陷检测问题，本文提出一种基于斜入射的超声阵列全聚焦成像方法。基于斯涅尔定律，研究了超声波在界面中的传播特性，确定了引入楔块下声束的传播路径，并将提出的斜入射超声阵列全聚焦成像技术用于铝制容器焊缝缺陷检测。仿真和实验结果表明，利用该方法可很好地实现焊缝中缺陷的检测。本文研究工作为焊接构件安全评价提供了可行的技术方案。 |
| 英文摘要: |
| Aiming at the internal defects detection of aluminum vessel welds, an ultrasonic array total focusing method (TFM) is proposed in this paper based on oblique incidence. Based on Snell's law, the propagation characteristics of ultrasonic wave in the interface were investigated, and the propagation path of ultrasonic wave in media was determined with the introduced wedge. The proposed oblique incidence ultrasonic array total focus imaging technique was applied to non-destructive examination of aluminum vessel weld defects. Numerical and experimental results show that TFM with oblique incidence longitudinal wave algorithm can be used for non-destructive examination of weld defects. It provides a feasible technology for security evaluation of the welding assembly. |
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