Ultrasonic Flaw Detection by Contact-Type Line-Focus Transducer

通过接触式线聚焦传感器进行超声波探伤

• 批准号: 15560063
• 负责人: INOUE Hirotsugu
• 金额: $ 2.62万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560063/
• 关键词: Ultrasonic Wave; Non-Destructive Inspection; Transducer; Lamb Wave; Rayleigh Wave; Coating Material

The aim of this research project was to improve accuracy and reliability of the ultrasonic flaw detection technique that is one of the most popular technique of non-destructive testing of machines and structures. The approach in this study was to develop a new type ultrasonic transducer, called contact-type line-focus transducer, which possesses a unique structure and characteristics. The result of this research project is summarized as follows :(1)The transducer developed in this research has been shown to excite and detect Lamb waves in plates, generalized Lamb waves in coating materials, and cylindrical waves in bulk material, rather easily than existing transducers.(2)Directivity of the developed transducer was examined by theoretical, numerical, and experimental analysis. It has been confirmed that the transducer basically possesses characteristics as intended.(3)The mechanisms of excitation and detection of Lamb and cylindrical waves were investigated by finite element analysis. The result provides a guide for improving the transducer.(4)The applicability of the transducer to TOFD method was examined. It has been shown that the transducer is applicable to TOFD method.

超声探伤技术是机械和结构无损检测中最常用的技术之一，本研究项目旨在提高超声探伤技术的准确性和可靠性。本研究的方法是研制一种新型的超声换能器，即接触式线聚焦换能器，它具有独特的结构和特点。研究结果如下：(1)与现有的传感器相比，本研究开发的传感器可以很容易地激发和检测板材中的兰姆波、涂层材料中的广义兰姆波和块状材料中的柱状波。(2)通过理论、数值和实验分析验证了所研制换能器的指向性。经证实，该换能器基本具有预期的特性。(3)通过有限元分析研究了兰姆波和圆柱波的激发和探测机理。研究结果为换能器的改进提供了指导。(4)对传感器在TOFD方法中的适用性进行了检验。结果表明，该传感器适用于TOFD方法。

项目成果

接触型線集束超音波探触子の開発

接触式线聚焦超声探头的研制

• 发表时间: 2004
• 期刊: 日本機械学会第3回評価・診断に関するシンポジウム講演論文集 04-47
• 作者: 井上裕嗣;岸本喜久雄
• 通讯作者: 岸本喜久雄

Evaluation of Excitation Characteristics of Contact-Type Line-Focus Ultrasonic Probe

接触式线聚焦超声波探头的激励特性评估

• 发表时间: 2003
• 期刊: Proceedings of the 2003 Annual Meeting of the JSME/MMD No.03-11
• 作者: Hirotsugu INOUE;Takuro ASAOKA;Kikuo KISHIMOTO
• 通讯作者: Kikuo KISHIMOTO

接触型線集束超音波探触子のTOFD法への適用

接触式线聚焦超声探头在TOFD方法中的应用

• 发表时间: 2004
• 期刊: 日本機械学会M&M2004材料力学カンファレンス講演論文集 04-6
• 作者: 井上裕嗣;齋藤俊正;岸本喜久雄
• 通讯作者: 岸本喜久雄

Application of Contact-Type Line-Focus Ultrasonic Probe to TOFD Method

接触式线聚焦超声波探头在TOFD法中的应用

• 发表时间: 2004
• 期刊: Proceedings of the 2003 Annual Meeting of the JSME/MMD No.04-6
• 作者: Hirotsugu INOUE;Toshimasa SAITO;Kikuo KISHIMOTO
• 通讯作者: Kikuo KISHIMOTO

Development of Contact-Type Line-Focus Ultrasonic Probe

接触式线聚焦超声波探头的研制

• 发表时间: 2004
• 期刊: The 3rd Symposium on Evaluation and Diagnosis, JSME No.04-47
• 作者: Hirotsugu INOUE;Kikuo KISHIMOTO
• 通讯作者: Kikuo KISHIMOTO