| 各向异性焊缝缺陷超声阵列全聚焦成像方法 |
| |
| 引用本文： | 杨敬,吴斌,焦敬品,刘帅开,刘秀成,何存富.各向异性焊缝缺陷超声阵列全聚焦成像方法[J].声学学报,2019,44(1):125-135. |
| |
| 作者姓名： | 杨敬 吴斌 焦敬品 刘帅开 刘秀成 何存富 |
| |
| 作者单位： | 1. 北京工业大学 机械工程与应用电子技术学院 北京 100124; |
| |
| 基金项目： | 国家重点研发计划项目(2016YFF0203002)和国家自然科学基金项目(11772013,11572011)资助 |
| |
| 摘 要： | 针对奥氏体不锈钢焊接构件安全评价需要,对各向异性结构中超声波传播特性进行了研究,利用射线追踪法确定了各向异性介质中声波传播路径。在传统全聚焦成像基础上,发展了一种用于各向异性焊缝中缺陷检测的超声阵列全聚焦成像方法。通过数值仿真和实验,研究了介质材质对超声阵列成像的影响,结果表明,发展的全聚焦成像方法可以很好实现各向异性焊缝中缺陷检测,缺陷定位更准确。项目研究工作为奥氏体不锈钢焊缝检测提供了可行的技术方案.
|
| 关 键 词： | 各向异性结构 成像方法 焊缝缺陷 声阵列 奥氏体不锈钢 各向异性介质 缺陷检测 波传播特性 |
| 收稿时间： | 2017-03-20 |
Total focus imaging of defects in anisotropic welds using ultrasonic array |
| |
| YANG Jing,WU Bin,JIAO Jingpin,LIU Shuaikai,LIU Xiucheng,HE Cunfu.Total focus imaging of defects in anisotropic welds using ultrasonic array[J].Acta Acustica,2019,44(1):125-135. |
| |
| Authors: | YANG Jing WU Bin JIAO Jingpin LIU Shuaikai LIU Xiucheng HE Cunfu |
| |
| Affiliation: | 1. College of Mechanical Engineering and Application Electronics Technology Beijing University of Technology Beijing 100124;2. Beijing Engineering Research Center of Precision Measurement Technology & Instruments Beijing University of Technology Beijing 100124 |
| |
| Abstract: | The characteristic of ultrasonic propagation and determination of the acoustic propagation path with ray tracing method in anisotropic medium have been implemented for the safety evaluation of austenitic stainless steel weld. Accordingly, an ultrasonic array Total Focus imaging Method(TFM) for defect detection in anisotropic welds has been developed. The influence of material on the ultrasonic array imaging was studied by numerical simulation and experiment. The results show that the proposed TFM method could be used to detect defects of anisotropic weld with smaller location error. This research work provides a feasible technical scheme for the inspection of austenitic stainless steel weld. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《声学学报》浏览原始摘要信息 |
|
点击此处可从《声学学报》下载全文 |
|
