A Study on Orecise Quantification of Ultrasonic Inspection

超声检测精确量化研究

• 批准号: 03452200
• 负责人: MIKI Chitoshi
• 金额: $ 4.16万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03452200/
• 关键词: Ultrasonic Inspection; Flaw Shape; Picturise; B Scope; Ultrasonic Holography; Numerical Simulation; 数値シミュレーション; 超音波; 数値シミュレ-ション; 超音波エコ-; 無反射境界; トモグラィ

1. Computational program to simulate the propagation of ultrasonic wave was developed. Using this simulation system, the characters of ultrasonic waveofrm was investigated.2. Ultrasonic Pulse-Echo inspection was carried out to investigate the character of scattering waveform from flaws. Scattering wave was divided into longitudinal and transverse components based on the difference of refraction angle.3. Computer graphics system was developed to picturise the shape of flaws from the echo of ultrasonic wave obtained on the surface.The relationship between phase shift and shape of flaw was shown.5. Analysis was carried out in case that a flaw with non-linear boundary existed in a elastic body. The activity of non-linear boundary was analyzed numerically and its characters was shown.6. As a computational technique to analyze the propagation of elastic wave, hybrid method of finite element method and boundary element method was improved. It was shown that this analysis method was effective to reduce the freedom of analysis model.

1.编制了超声波在介质中传播的数值模拟程序。利用该仿真系统，研究了超声波的特性.利用超声脉冲回波检测技术研究了缺陷的散射波形特征。根据折射角的不同，将散射波分为纵向和横向分量.开发了计算机图形学系统，利用超声波在表面的回波信号，绘制出缺陷的形状，并给出了相移与缺陷形状的关系.分析了弹性体中存在非线性边界缺陷的情况。对非线性边界的活动性进行了数值分析，揭示了其特征.作为一种分析弹性波传播的计算方法，对有限元-边界元混合法进行了改进。结果表明，该分析方法能有效地减少分析模型的自由度。

项目成果

三木千寿,高橋政則,舘石和雄,劉銘崇: "超音波探傷の高精度定量化に関する研究(その1、超音波の数値シミュレーションとモード分離画像化について)" 東工大土木工学科研究報告書. No.43. 75-100 (1992)

Chiju Miki、Masanori Takahashi、Kazuo Tateishi、Ming Chong Liu：“超声波探伤高精度量化研究（第1部分，超声波和模式分离成像的数值模拟）”东京工业大学土木工程系研究报告。第43.75-100号（1992）

三木 千寿: "超音波探傷シミュレーションによる欠陥形状識別に関する研究" 土木学会第47回年次学術講演会講演概要集. 968-969 (1992)

Chiju Miki：“利用超声波探伤模拟进行缺陷形状识别的研究”日本土木工程学会第47届学术年会摘要968-969（1992）。

S.Hirose and M.Kitahara: "Ultrasonic Scattering Analysis to Characterise Non-linear Behavior of Material Interface" Non-destructive Testing Evaluation. Vol.8-9. (1992)

S.Hirose 和 M.Kitahara：“超声散射分析来表征材料界面的非线性行为”无损检测评估。

Chitoshi MIKI: "Numerical Simulation of Ultrasonic Pulseーecho Inspection" Proceedings of JSCE.

Chitoshi MIKI：“超声波脉冲回波检测的数值模拟”JSCE 论文集。

北原道弘,瀬戸恭英,中川克也: "散乱波動場の位相とその形状決定問題への応応" 構造工学論文集. Vol.38A. 397-404 (1992)

Michihiro Kitahara、Yasuhide Seto、Katsuya Nakakawa：“散射波场的相位及其对确定其形状问题的响应”《结构工程学报》第 38A 卷（1992 年）。