| 周扬帆,涂君,毛轶豪,王慧珍,张旭,宋小春.用于曲面构件超声相控阵检测的聚焦延时方法研究[J].电子测量与仪器学报,2025,39(2):222-230 |
| 用于曲面构件超声相控阵检测的聚焦延时方法研究 |
| Research on focus delay method for ultrasonic phased arrayinspection of curved surface components |
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| DOI： |
| 中文关键词: 曲面构件 超声相控阵 声场指向性 线阵聚焦 延时法则 |
| 英文关键词:curved components ultrasonic phased array sound field directivity linear array focusing delay rules |
| 基金项目:湖北省重点研发计划项目（2022BAA075）资助 |
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| Author | Institution |
| Zhou Yangfan | 1.School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;
2.Hubei Provincial Key Laboratory of Modern Manufacturing Quality Engineering, Wuhan 430068, China |
| Tu Jun | 1.School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;
2.Hubei Provincial Key Laboratory of Modern Manufacturing Quality Engineering, Wuhan 430068, China |
| Mao Yihao | 1.School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;
2.Hubei Provincial Key Laboratory of Modern Manufacturing Quality Engineering, Wuhan 430068, China |
| Wang Huizhen | 1.School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;
2.Hubei Provincial Key Laboratory of Modern Manufacturing Quality Engineering, Wuhan 430068, China |
| Zhang Xu | 1.School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;
2.Hubei Provincial Key Laboratory of Modern Manufacturing Quality Engineering, Wuhan 430068, China |
| Song Xiaochun | 1.School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;
2.Hubei Provincial Key Laboratory of Modern Manufacturing Quality Engineering, Wuhan 430068, China |
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| 摘要点击次数: 16 |
| 全文下载次数: 56 |
| 中文摘要: |
| 为了提高曲面构件内微小缺陷的超声相控阵检测能力,提出了一种用于曲面构件的相控阵聚焦延时方法。本研究建立了线阵相控阵聚焦声场的瑞利积分数学模型,并对声场指向性分布规律进行了分析。应用斯涅尔定律分别推导了斜面和曲面构件中的聚焦延时法则,与传统的迭代遍历算法相比,该方法提高了延迟法则的计算效率,减少了界面结构对扫描声束波阵面的弯曲影响,从而充分发挥了线性相控阵的检测优势。在建立的曲面构件仿真模型中,基于所提聚焦延时方法,依次将延时施加于各阵元,仿真结果证明了声波能够在预设位置实现有效聚焦,并且该方法的计算时间相比于传统迭代遍历计算缩短了约70%。进一步地,展开实际检测实验,制作了含有Φ0.3 mm盲孔的环形钢试块,通过对比施加延时法则前后的B扫描图像和A扫信号图,实验结果表明,所提出的方法有效提高了曲面构件内微小缺陷的检测信噪比以及成像质量。 |
| 英文摘要: |
| To enhance the detection capability of small defects within curved components using ultrasonic phased array, this paper proposes a phased array focusing delay method tailored for curved structures. In this paper, the Rayleigh integral mathematical model for the linear phased array focusing field is established, and the directional distribution of the sound field is analyzed. By applying Snell’s Law, the focus delay rules for inclined and curved components are derived. Compared with the traditional iterative traversal algorithm, the proposed method improves the calculation efficiency of the delay rule, reduces the influence of interface structures on the curvature of the scanning sound beam’s wavefront, thereby fully leveraging the detection advantages of linear phased arrays. In the established curved component simulation model, the delay is applied sequentially to each element based on the proposed method. Simulation results confirm that the sound waves can be effectively focused at the present location, and the computation time is reduced by approximately 70% compared to traditional iterative methods. Furthermore, practical detection experiments were conducted using a ring-shaped steel test block with a Φ0.3 mm blind hole. By comparing the B-scan images and A-scan signals before and after applying the delay rule, experimental results show that the proposed method significantly improves the signal-to-noise ratio and imaging quality in detecting small defects in curved components. |
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