| 研究課題/領域番号 |
23KJ0130
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 基金 |
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| 応募区分 | 国内 |
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| 審査区分 |
小区分31010:原子力工学関連
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| 研究機関 | 東北大学 |
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研究代表者 |
郭 一君 東北大学, 工学研究科, 特別研究員(PD)
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| 研究期間 (年度) |
2023-04-25 – 2024-03-31
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| 研究課題ステータス |
中途終了 (2023年度)
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| 配分額 *注記 |
1,600千円 (直接経費: 1,600千円)
2024年度: 800千円 (直接経費: 800千円)
2023年度: 800千円 (直接経費: 800千円)
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| キーワード | Nondestructive testing / Pipe inspection / Microwave / Size evaluation |
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| 研究開始時の研究の概要 |
Numerical analysis is conducted to study the reflected microwaves at different defect sizes using different modes. Based on the results, an inverse model is built for size evaluation. Experiments using artificial/realistic wall thinning defects are used to retrain and verity the evaluation model.
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| 研究実績の概要 |
This research focuses on the size evaluation of pipe defect size using microwaves. The main achievements up to the current point are summarized as follows： (1)Established the simulation database for frequency spectra of microwaves from pipe wall thinning with different sizes. (2)Analyzed the relationship between the frequency spectrum and wall thinning size. (3)Developed a convolutional neural networks to evaluate the defect size according to the frequency spectrum. (4)Above results have been summarized to a manuscript, which will be submitted to a journal paper soon.
Consequently, the size evaluation of pipe wall thinning has been initially achieved using microwaves. Subsequent efforts may consider establishing a comprehensive database to assess the size of various defect shapes.
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