54件が見つかりました。

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第1回
BWR 環境下での渦電流モニタリングによる In-situ き裂進展評価の検討
著者:
糟谷 高志,Takashi KASUYA,奥山 武志,Takeshi OKUYAMA,遠藤 久,Hisashi ENDO,内一 哲哉,Tetsuya UCHIMOTO,高木 敏行,Toshiyuki TAKAGI,庄子 哲雄,Tetsuo SHOJI
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Abstract This paper discusses the possibility of in-situ evaluation of crack propagation using Eddy Current Monitoring (ECM) system in a Boiling Water Reactor (BWR) environment. For the purpose, an ECM experiment was conducted at the System Safety Benchma rk Facility (SSBF). The target for the monitoring was a large-scale pipe specimen made of austenitic stainless steels 304L, 316L, and carbon steel STS410, connected by weld joints of nickel based alloy 182. Slits were prepared at the Heat Affected Zones (...
英字タイトル:
In-situ Crack Evaluation using Eddy Current Monitoring in a Boiling Water Reactor Environment
第1回
「保全工学」構築のアプローチ
著者:
林田 貴一,Kiichi HAYASHIDA,青木 孝行,Takayuki AOKI
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Abstract This study proposes the systematization of plant maintenance and establishment of Maintenology or “Maintenance Engineering“. In this paper, it is shown that “Inspection System Engineering”, which consists of a part of Maintenance En gineering, is necessary to incorporate a scientific approach or rationality into maintenance planning and can provide ho w to optimize inspection planning by considering the structural strength and aging degradation of equipment or component....
英字タイトル:
Approach to the Construction of “Maintenance Engineering"
第1回
インコネル600部位予防保全技術
著者:
谷口 優,Masaru TANIGUCHI,山上 真広,Mahiro YAMAGAMI,山本 和秀,Kazuhide YAMAMOTO,杉本 憲昭,Noriaki SUGIMOTO
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Abstract : For stress corrosion crack(SCC) of Inconel 600, on the opportunity of the leak issue of the reacter vessel he ad nozzle at Bujey-3 in 1991, MHI has been engaged in reseach and development about the field of evaluation, maintenanc e and inspection for the part using Inconel 600 on RCS pressurized boundary. In this report, it introduces about the tec hnique of preventive maintenance for the part using Inconel 600, which have been developed or under development by MHI....
英字タイトル:
Technique of Preventive Maintenance for part using Inconel 600
第1回
コスト重要度を用いた保全計画策定手法に関する研究
著者:
藤井 秀樹,Hideki FUJII,関村 直人,Naoto SEKIMURA
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Abstract This study proposes importance factors of components to optimize maintenance of a system. Cost Fussell Vesely (C-FV) parameter me asures the effectiveness of maintenance for total cost optimization. Absolute risk achievement worth (ARAW), which can be a good parameter to optimize maintenance based on risk, is estimated by multiplying RAW value with non-reliability. Correlation between these factors and o ptimized maintenance methods is compared and discussed from the viewpoints of improvement of t...
英字タイトル:
Study of Maintenance Planning Using Cost Importance
第1回
ステンレス鋼配管超音波探傷技術
著者:
増本 光一郎,Koichiro MASUMOTO,斉藤 徹哉,Tetsuya SAITO,松浦 貴之,Takayuki MATSUURA,黒川 正秋,Masaaki KUROKAWA,川浪 精一,Seiichi KAWANAMI
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Abstract In the nuclear power plants, the reservation of safety and before-it-happens prevention of a trouble are important themes. Moreover, in connection with the life extension of a plant, life-expectancy diagnosis has also been an important subject. Although it is technology required in order that a non-destructive test may secure the safety of a power generation plant, Ultrasonic Testing (UT) is applied. However, generally the welding of stainl ess steel piping used widely in the PWR type nuclear powe...
英字タイトル:
Ultrasonic Testing Technique for Stainless Steel Pipe
第1回
テキストマイニングによるトラブル事例情報の有効活用
著者:
高橋 信,Makoto TAKAHASHI,内松 洋輔,Yousuke UTIMATU,加須屋 秀彰,Hideaki KASUYA,北村 正晴,Masaharu KITAMURA
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Abstract The method of text-mining has been applied to accumulated documents on anomaly for nuclear power plant to represent them in systematic way. The twelve event reports from the public database of the nuclear power plant anomalies have been taken as examples. I t has shown that the similarity and singularity of the event can be successfully described in the proposed framework. It has also sh own that the important key words and the contextual structure of the report have been successfully extracted b...
英字タイトル:
Effective Use of Trouble Information by Text-mining Method
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ネットワーク通信を用いた ECT 迅速診断システムの開発について
著者:
小島 史男,Fumio KOJIMA,小林 太,Futoshi KOBAYASHI,西水 亮,Akira NISHIMIZU,小池 正浩,Masahiro KOIKE,松井 哲也,Tetsuya MATSUI
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This paper deals with an ECT diagnosis system using network communication. This system consists of an inspection module, a computational m odule and a communication interface module which can visualize some inspection results from the inspection module with ECT and some analys is results from the computation module. Here, three modules are connected through network architecture and communicated each other. Moreov er, an operator can control interactively the inspection and computational modules in order to...
英字タイトル:
Development of ECT Diagnosis System with Network Communication
第1回
モバイルエージェント技術の原子カプラント保全支援への適用
著者:
高橋 信,Makoto TAKAHASHI,佐藤 寿,Hisashi SATO,伊藤 洋,Yo ITO,北村 正晴,Masaharu KITAMURA
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The framework of intelligent support system for the maintenance of nuclear power plant is proposed in this paper with emphasis on the combined use of a portab le device and intelligent information processing. The purpose of this system is the realization of flexible inspection process and effective diagnosis process to be performed on-site with the aid of the mobile agent capable of performing various tasks moving along the network. The results of the scenario-based and f unction-based evaluation based on ...
英字タイトル:
Application of Mobile Agent Technology for Maintenance Support of Nuclear Power Plants
第1回
リスクインフォームド規格基準の策定における課題
著者:
吉田 智朗,Tomoaki YOSHIDA
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Abstract Japanese nuclear power utilities must clearly identify their own specific issues for optimi zing operation and maintenance in the process of introducing risk-informed regulation. They must also make efforts to ensure the technical adequacy of their PRA methodology including elaborate uncertainty analyses and detailed reliability studies for achieving sound decision-making with risk information....
英字タイトル:
Issues to be resolved regarding development of codes and standards for risk-informed applications
第1回
リスク評価とリスクコミュニケーション 保全のリスク問題
著者:
宮野 廣,Hiroshi MIYANO
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Abstract This study proposes an innovative method for the evaluation of risk on Nuclear Power Plant, especially on the maintain of it. Luck of communication between the sectors, citizen, media, governments, companies and academy related to Nuclear Power Plant Industry, needs the sincer e communication with risk assessment based on economical data. Make clear the risk and hedge, benefit what individual people should have, what a district should have, and what country society should have. ...
英字タイトル:
Risk Communication on Nuclear Power Plant
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