（発電技検）
著者に関連した記事は5件です。
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第16回
EMATによる超音波の送受信に関する電磁相互作用を考慮したFEMシミュレーション
著者:
山本 敏弘,（発電技検）,浦山 良一,（東北大）,古川 敬,（発電技検）,高木 敏行,（東北大）
発刊日:
公開日:
キーワードタグ:
electromagnetic transducer EMAT FEM finite element method simulation
山本 敏弘,（発電技検）,浦山 良一,（東北大）,古川 敬,（発電技検）,高木 敏行,（東北大）
発刊日:
公開日:
キーワードタグ:
electromagnetic transducer EMAT FEM finite element method simulation
The purpose of this study is to establish a computational procedure to support the optimization of an EMAT configuration. In this study, computer simulations were performed to obtain the propagation behavior of ultrasonic waves generated by an EMAT and the signals received with an EMAT. The simulation results were compared with the corresponding experimental results to validate the simulation method. The simulation results reasonably matched the corresponding experimental results....
英字タイトル:
FEM simulation with consideration of electromagnetic interaction for transmitting and receiving ultrasonic waves with an EMAT
英字タイトル:
FEM simulation with consideration of electromagnetic interaction for transmitting and receiving ultrasonic waves with an EMAT
第17回
垂直UTによる欠陥検出を例にした機械学習結果の解釈技術の調査
著者:
山本 敏弘,（発電技検）
発刊日:
公開日:
キーワードタグ:
AI deep learning interpretation machine learning normal beam ultrasonic testing UT
山本 敏弘,（発電技検）
発刊日:
公開日:
キーワードタグ:
AI deep learning interpretation machine learning normal beam ultrasonic testing UT
A machine learning model is required to be interpretable for making its decision accepted by people. SHAP (Shapley Additive exPlanations) is a tool to show how much each of the features used for training a machine learning model contributes its decision. This paper shows an application of SHAP on a deep learning model for defect detection by normal beam UT as an example of nondestructive inspection problems....
英字タイトル:
Study on an interpretation technique for machine learning results with an example of defect detection by normal beam UT
英字タイトル:
Study on an interpretation technique for machine learning results with an example of defect detection by normal beam UT
第16回
超音波探傷シミュレーション技術を活用した訓練用データの試作
著者:
古川 敬,上山 芳教,山本 敏弘,直本 保,（発電技検）
発刊日:
公開日:
キーワードタグ:
FEM Flaw Detection Simulator Training Ultrasonic Testing Welds
古川 敬,上山 芳教,山本 敏弘,直本 保,（発電技検）
発刊日:
公開日:
キーワードタグ:
FEM Flaw Detection Simulator Training Ultrasonic Testing Welds
Ultrasonic testing (UT) is one of the most appropriate non-destructive testing because of capabilities for flaw detection and flaw height sizing of flaw. Interpretation and analysis of UT data are not easy, to identify and classify relevant indications are sometimes very difficult. UT personnel shall be qualified to an appropriate level in accordance with a code and standard. In addition, personnel should keep and improve their skills. In this paper, an FEM UT simulation was applied to make UT training data...
英字タイトル:
Prototype of UT Training Simulator using Large Scale FEM Simulation
英字タイトル:
Prototype of UT Training Simulator using Large Scale FEM Simulation
第15回
超音波探傷試験技術者に対するUTシミュレータ訓練の有効性検討
著者:
平澤 泰治,松田 誠司,牧原 善次,（発電技検）
発刊日:
公開日:
キーワードタグ:
False Call Probability In-service Inspection Miss Call Probability Trial of UT Simulator Training True Call Probability Ultrasonic Testing UT Simulator UT Training Program
平澤 泰治,松田 誠司,牧原 善次,（発電技検）
発刊日:
公開日:
キーワードタグ:
False Call Probability In-service Inspection Miss Call Probability Trial of UT Simulator Training True Call Probability Ultrasonic Testing UT Simulator UT Training Program
In our country, the ultrasonic testing (UT) has been carried out according to the JEAC 4207 in ISI. In this code, the ultrasonic personnel are required to the education and training concerning the UT of ISI in the nuclear power plant. Therefore, the ultrasonic personnel are trained to keep the high-level skills such as defect detection, classification of detected echoes and so on, using the own training program of the inspection companies. Thus, in order to keep the inspection skills of the ultrasonic perso...
英字タイトル:
Investigation of Applicability of Inspection Skill Training using UT Simulator for Ultrasonic Personnel
英字タイトル:
Investigation of Applicability of Inspection Skill Training using UT Simulator for Ultrasonic Personnel
第17回
高周波超音波を用いたW-Cu固相接合界面検査技術の検討
著者:
遊佐 訓孝,（東北大院）,古川 敬,（発電技検）,増崎 貴,（核融合研）
発刊日:
公開日:
キーワードタグ:
diverter fusion reactor imaging nondestructive testing and evaluation solid state bonding
遊佐 訓孝,（東北大院）,古川 敬,（発電技検）,増崎 貴,（核融合研）
発刊日:
公開日:
キーワードタグ:
diverter fusion reactor imaging nondestructive testing and evaluation solid state bonding
This study evaluated the applicability of high-frequency ultrasonic testing to the inspection of W-Cu bonded interface aiming at the development of a non-destructive testing technique for the inspection of the cooling channel of the divertor of a fusion reactor. Tungsten blocks measuring approximately 30×30×13 mm were bonded with oxygen-free copper blocks using a high temperature vacuum furnace with uniaxial pressure and the thickness of the oxygen-free copper blocks was reduced to 2.5 mm. Artificial groove...
英字タイトル:
Nondestructive inspection of W-Cu bonded interface using high frequency ultrasound
英字タイトル:
Nondestructive inspection of W-Cu bonded interface using high frequency ultrasound