| 相控阵超声全聚焦成像算法的有限元仿真研究 |
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| 引用本文： | 池强强,胡明慧. 相控阵超声全聚焦成像算法的有限元仿真研究[J]. 声学技术, 2020, 39(2): 176-183 |
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| 作者姓名： | 池强强 胡明慧 |
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| 作者单位： | 华东理工大学承压系统与安全教育部重点实验室, 上海 200237,华东理工大学承压系统与安全教育部重点实验室, 上海 200237 |
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| 基金项目： | 国家自然科学基金项目（51775188）。 |
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| 摘 要： | 基于超声相控阵基本理论和全聚焦成像算法(Total Focus Method,TFM),以30 mm厚的Q235钢板中的孔缺陷检测为研究对象,使用ABAQUS有限元软件,建立了相控阵TFM有限元检测模型。根据模拟结果,在MATLAB软件中编写了相控阵TFM成像算法。同时,采用超声多通道实验平台,对构建的TFM有限元检测模型和编写的相控阵TFM算法进行实验验证。实验结果与有限元模拟结果有较好的一致性。
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| 关 键 词： | 超声相控阵 全聚焦成像算法 缺陷识别 有限元 ABAQUS有限元软件 |
| 收稿时间： | 2019-02-20 |
| 修稿时间： | 2019-04-21 |
Simulation research on finite element method based phased array ultrasonic TFM imaging algorithm |
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| CHI Qiangqiang and HU Minghui. Simulation research on finite element method based phased array ultrasonic TFM imaging algorithm[J]. Technical Acoustics, 2020, 39(2): 176-183 |
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| Authors: | CHI Qiangqiang and HU Minghui |
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| Affiliation: | Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, China and Key Laboratory of Pressure Systems and Safety, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | Based on the theory of ultrasonic phased-array and the total focus method (TFM), the finite element model of phased-array TFM is established by using ABAQUS finite element software for defect detection in a 30mm-thick Q235 steel plate. According to the simulation results, the phased-array TFM imaging algorithm is programmed in MATLAB. The TFM finite element detection model and the phased array TFM algorithm are verified by using ultrasonic multi-channel experimental platform. It is shown that the finite element simulation results are in good agreement with the experimental results. |
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| Keywords: | phased-array ultrasound total focus method (TFM) imaging algorithm defect identification finite element method ABAQUS finite element software |
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