小川 良太
著者に関連した記事は27件です。
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第16回
埋込金物に対するAEセンサを用いた打音検査の効率化に向けた取組み
著者:
三浦 進,関口 昭司,服部 功三,（日本原燃）,小川 良太,匂坂 充行,礒部 仁博,（原燃工）
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Acoustic Emission Sensor Efficiency Improvement Embedded Hardware Hammering Inspection
三浦 進,関口 昭司,服部 功三,（日本原燃）,小川 良太,匂坂 充行,礒部 仁博,（原燃工）
発刊日:
公開日:
キーワードタグ:
Acoustic Emission Sensor Efficiency Improvement Embedded Hardware Hammering Inspection
Non-destructive evaluation technique was developed for embedded hardware using hammering inspection with AE (Acoustic Emission) sensor. The integrity of the studs welded on the hardware is judged from both the vibration duration of the embedded hardware and the frequency analysis of the vibration signal. The hammering inspection has been applied to the reprocessing plant of JNFL (Japan Nuclear Fuel Limited) for three years and we are now planning the improvement of the efficiency of the inspection in variou...
英字タイトル:
Improvement of the efficiency of hammering inspection using AE sensor for embedded hardware
英字タイトル:
Improvement of the efficiency of hammering inspection using AE sensor for embedded hardware
第14回
社会インフラ診断へのPFMの適用検討
著者:
礒部 仁博,Yoshihiro ISOBE,藤吉 宏彰,Hiroaki FUJIYOSHI,松永 嵩,Takashi MATSUNAGA,小川 良太,Ryota OGAWA,匂坂 充行,Mitsuyuki SAGISAKA,松本 聡司,Satoshi MATSUMOTO,高坂 徹,Toru KOSAKA,吉村 忍,Shinobu YOSHIMURA
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Dr human error Mainte maintenance activities stress check
礒部 仁博,Yoshihiro ISOBE,藤吉 宏彰,Hiroaki FUJIYOSHI,松永 嵩,Takashi MATSUNAGA,小川 良太,Ryota OGAWA,匂坂 充行,Mitsuyuki SAGISAKA,松本 聡司,Satoshi MATSUMOTO,高坂 徹,Toru KOSAKA,吉村 忍,Shinobu YOSHIMURA
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Dr human error Mainte maintenance activities stress check
Special attentions have been increasingly paid for the diagnosis of social infrastructures after the collapse of ceiling of Sasago tunnel of Chuo Expressway. It is reported that the main cause was due to the age-related degradation of chemical anchors. Chemical anchors are also frequently used in nuclear power stations. Here we have been trying to apply PFM (Probabilistic Fracture Mechanics) to the diagnosis of social infrastructures using Dr. Mainte, an integrated simulator to optimize maintenance activi...
英字タイトル:
A Study of Application of PFM (Probabilistic Fracture Mechanics) to the Diagnosis of Social Infrastructures ]
英字タイトル:
A Study of Application of PFM (Probabilistic Fracture Mechanics) to the Diagnosis of Social Infrastructures ]
第13回
軽水炉保全最適化のための統合型シミュレータ Dr. Mainte による ヒューマンエラーの影響とその低減効果の検討 2
著者:
礒部 仁博,Yoshihiro ISOBE,匂坂 充行,Mitsuyuki SAGISAKA,小川 良太,Ryota OGAWA,松永 嵩,Takashi MATSUNAGA,高坂 徹,Toru KOSAKA,松本 聡司,Satoshi MATSUMOTO,吉村 忍,Shinobu YOSHIMURA
発刊日:
公開日:
キーワードタグ:
Dr human error Mainte maintenance activities stress check
礒部 仁博,Yoshihiro ISOBE,匂坂 充行,Mitsuyuki SAGISAKA,小川 良太,Ryota OGAWA,松永 嵩,Takashi MATSUNAGA,高坂 徹,Toru KOSAKA,松本 聡司,Satoshi MATSUMOTO,吉村 忍,Shinobu YOSHIMURA
発刊日:
公開日:
キーワードタグ:
Dr human error Mainte maintenance activities stress check
Dr. Mainte, an integrated simulator for maintenance optimization of LWRs (Light Water Reactors) has been developed based on PFM (Probabilistic Fracture Mechanics) analyses in terms of safety, availability and economic efficiency, environmental impact and social acceptance. For the further improvement of maintenance activities, the importance of reducing human errors is often pointed out. Human errors are well recognized to be affected by mental stress conditions. Due to the amendment of Industrial Safe...
英字タイトル:
Effects of Human Error and its Reduction Analyzed by Dr. Mainte, Integrated Simulator of Maintenance Optimization of LWRs 2
英字タイトル:
Effects of Human Error and its Reduction Analyzed by Dr. Mainte, Integrated Simulator of Maintenance Optimization of LWRs 2
第12回
軽水炉保全最適化のための統合型シミュレータDr. Mainte による ヒューマンエラーの影響とその低減効果の検討
著者:
礒部 仁博,Yoshihiro ISOBE,匂坂 充行,Mitsuyuki SAGISAKA,小川 良太,Ryota OGAWA,松永 嵩,Takashi MATSUNAGA,高坂 徹,Toru KOUSAKA,松本 聡司,Satoshi MATSUMOTO,吉村 忍,Shinobu YOSHIMURA
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キーワードタグ:
Dr human error LWR Mainte maintenance optimization PFM simulation
礒部 仁博,Yoshihiro ISOBE,匂坂 充行,Mitsuyuki SAGISAKA,小川 良太,Ryota OGAWA,松永 嵩,Takashi MATSUNAGA,高坂 徹,Toru KOUSAKA,松本 聡司,Satoshi MATSUMOTO,吉村 忍,Shinobu YOSHIMURA
発刊日:
公開日:
キーワードタグ:
Dr human error LWR Mainte maintenance optimization PFM simulation
Dr. Mainte, an integrated simulator for maintenance optimization of LWRs (Light Water Reactors) has been developed based on PFM (Probabilistic Fracture Mechanics) analyses. The concept of the simulator is to provide a decision-making system to optimize maintenance activities for representative components and piping systems in nuclear power plants totally and quantitatively in terms of safety, availability and economic efficiency, environmental impact and social acceptance. For the further improvement ...
英字タイトル:
Effects of Human Error and its Reduction Analyzed by Dr. Mainte, Integrated Simulator of Maintenance Optimization of LWRs
英字タイトル:
Effects of Human Error and its Reduction Analyzed by Dr. Mainte, Integrated Simulator of Maintenance Optimization of LWRs
第17回
逆止弁診断へのAI適用の検討
著者:
礒部 仁博,松永 嵩,小川 良太,（原燃工）
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AE sensor AI Check Valve Diagnosis Vibration measurement
礒部 仁博,松永 嵩,小川 良太,（原燃工）
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AE sensor AI Check Valve Diagnosis Vibration measurement
As an attempt to apply AI in the field of maintenance, we have been developing a diagnosis method of check valves to detect the internal leakage and the signal before the leakage based on the signal analysis of their vibration measurements by a portable system with AE (Acoustic Emission) sensors. CNN (Convolutional Neural Network) was applied to the measured raw waveform and its frequency distribution corresponding to the leakage rates in order to classify the leakage rates. The leakage rate was gradually i...
英字タイトル:
Study on the Application of AI to Check Valve Diagnosis
英字タイトル:
Study on the Application of AI to Check Valve Diagnosis
第15回
ＡＥセンサーを用いた打音検査によるグラウンドアンカーの緊張力評価 その１
著者:
浜崎 智洋,（西日本高速道路）,松永 嵩,小川 良太,礒部 仁博,（原燃工）,佐山 政幸,佐山 勝一,（マサクリーン）
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acoustic emission sensor ground anchor nondestructive inspection tension
浜崎 智洋,（西日本高速道路）,松永 嵩,小川 良太,礒部 仁博,（原燃工）,佐山 政幸,佐山 勝一,（マサクリーン）
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acoustic emission sensor ground anchor nondestructive inspection tension
The purpose of this research is development of tension measurement method using hammering sound diagnosis technology using Acoustic Emission sensor. Experiments using actual size anchors and FEM analysis quantitatively evaluated the relationship between the vibration characteristics of the anchor head and the tension introduced into the anchor. As a result, it is possible to evaluate the anchor tension based on the natural vibration characteristics of the anchor head.
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英字タイトル:
Evaluation of tension of ground anchor by hammering test using AE sensor Vol.1
英字タイトル:
Evaluation of tension of ground anchor by hammering test using AE sensor Vol.1
第15回
ＡＥセンサーを用いた打音検査によるグラウンドアンカーの緊張力評価 その２
著者:
浜崎 智洋,（西日本高速道路）,松永 嵩,小川 良太,礒部 仁博,（原燃工）,佐山 政幸,佐山 勝一,（マサクリーン）
発刊日:
公開日:
キーワードタグ:
acoustic emission sensor ground anchor nondestructive inspection tension
浜崎 智洋,（西日本高速道路）,松永 嵩,小川 良太,礒部 仁博,（原燃工）,佐山 政幸,佐山 勝一,（マサクリーン）
発刊日:
公開日:
キーワードタグ:
acoustic emission sensor ground anchor nondestructive inspection tension
The purpose of this research is development of tension measurement method using diagnostic technique of hammer sound using acoustic radiation sensor. This report summarizes the method of evaluating the anchor tension based on the natural frequency of the anchor head and the applicability of the method to measured data at the site....
英字タイトル:
Evaluation of tension of ground anchor by hammering test using AE sensor Vol.2
英字タイトル:
Evaluation of tension of ground anchor by hammering test using AE sensor Vol.2
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