54件が見つかりました。

並び替え
第1回
海外原子力発電所で発生した不具合事象の傾向分析(2003年)
著者:
宮崎 孝正,Takamasa MIYAZAKI,佐藤 正啓,Masahiro SATO,高川 健一,Kenichi, TAKAGAWA,伏見 康之,Yasuyuki FUSHIMI,島田 宏樹,Hiroki SHIMADA
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Abstract Adverse events that have occurred at overseas nuclear power plants can be studied to provide an indication of how to improve the safety and the reliability of nuclear power plants in Japan. The Institute of Nuclear Safety Systems (INSS) obtains all information related to overseas adverse events and incidents at power stations, evaluates them in an attempt to prevent similar occurrences in Japanese PWR plants, and proposes recommendations to Japanese PWR utilities. Through su ch INSS evaluation act...
英字タイトル:
Analysis of Tendency on Adverse Events Occurred at Overseas Nuclear Power Plants in 2003
第1回
渦電流を用いた構造物適応型非破壊評価技術の開発
著者:
高木 敏行,Toshiyuki TAKAGI
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Abstract This article outlines the development of structure adaptive nondestructive evaluation technology using eddy currents. A couple of eddy current testin g (ECT) systems are utilized. One performs high spatial resolution with multi-coil array probes, enabling us to identify crack positions by means of image pr ocessing. The other employs double excitation coil probes to detect relatively deep cracks from the scanning surface, showing detectability more than 5mm in d epth. Profiling/sizing cracks estim...
英字タイトル:
Development of Structure Adaptive Nondestructive Evaluation Technology using Eddy Currents
第1回
渦電流探傷試験逆問題に対する確率論的評価
著者:
遊佐 訓孝,Noritaka YUSA,陳 振茂,Zhenmao ZHEN,宮 健三,Kenzo MIYA
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study evaluates the probability of the errors in evaluation of length and depth of ly current testing signals measured in inspections of a steam g enerator tubes in lants. Numerous numerical simulations are performed to establish database e number of defect profiles and corresponding eddy cur rent signals; then the or is calculated as a function of the difference in signals using the databases. is study clarify that the eddy current inv ersion in the configuration is not so Abstract This study evaluates t...
英字タイトル:
Probabilistic Evaluation of Eddy Current Inverse Analyses
第1回
炉内検査装置の開発及び実機適用
著者:
成瀬 克彦,Katsuhiko NARUSE,湯口 康弘,Yasuhiro YUGUCHI,島村 光明,Mitsuaki SHIMAMURA,亀山 育子,Ikuko KAMEYAMA
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Abstract This paper describes development and application of remotely operated vehicles (ROVs) for reactor internals. Stress Corrosion Cracking (SCC) on reactor internal comp onents has become one of the most important issues in recent years, and demand for the inspection of reactor internals is increasing. Toshiba has developed and applied sever al kinds of ROVs, which can inspect and maintain the welds in a narrow space underwater. Particularly, Toshiba succeeded in the development of UT Vehicle, which c...
英字タイトル:
Development and Application of In-Vessel Inspection Equipments
第1回
炉内補修技術について
著者:
伊東 敬,Takashi ITO
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1. 概要我が国の原子力発電プラントは,運転開始 から 20 年を経過しようとするプラントも少 なくなく,基幹電力として,安全かつ安定的 な電力供給を維持していくために,総合的な 保全策の適用検討がなされている。保全策の 二本柱は,予防保全と,適切な頻度の点検と 「点検結果の評価に基づく維持管理であり,点 検により万一欠陥が確認された場合には,そ の部位,程度によっては補修が必要になる場 合がある。炉内構造物で,万一補修を実施する場合に は,基本的に工事は遠隔操作による実施が要 求されることから,一般的に......
英字タイトル:
Repair Technologies applied to BWR Core Internals
第1回
状態監視保全技術の開発と実機適用
著者:
日隈 幸治,Koji HIGUMA,鵜原 義彦,Yoshihiko UHARA,山本 博樹,Hiroki YAMAMOTO,清水 俊一,Shunichi SHIMIZU,渡部 幸夫,Yukio WATANABE,兼本 茂,Shigeru KANEMOTO
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Abstract In operation of nuclear power plants (NPPs), it is required not only to preserve and improve the reliability and safety, but also to introduce more efficient and lower cost maintenance strategy simultaneously, due to the power trading deregulation in recent years. For this purpose, Condition Based maintenance (CBM), which has been extensively applied i n the nuclear power plant of U.S., is introduced as a maintenance method for rotating machines in Japanese nuclear power plant. TOSHIBA develops t...
英字タイトル:
Development and application of Monitoring and Diagnosis Techniques for Condition Based Maintenance in Nuclear Power Plant
第1回
社会の安全と安心のためのシステム安全管理の体系
著者:
吉川 榮和,Hidekazu YOSHIKAWA
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Structure of system safety management is first discussed, and then several topics are introduced with respect to the scheme of system safety management. They are (i)creation of al ways generative safety culture in the organization, (ii)model of organizational accident and the philosophy of human error management for the maintenance activity, and (iii)the ne cessity of implementing technical risk communication activity. Lastly, the concept of offsite operation & maintenance support center, the introduction ...
英字タイトル:
Structure of Systematic Safety Management for Safety and Non-anxiety of Society
第1回
維持基準の策定状況
著者:
野村 友典,Tomonori NOMURA
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In order to secure the structural integrity for long term operation of light water reactors, JSME Code on Fitness-for-Service was developed. This paper presents the outline of the Code, background, the status of review and appro val by NISA, and discusses the subjects for future development of the Code....
英字タイトル:
Status of JSME Code on Fitness-for-Service
第1回
自己修復型人工物のための分散情報処理
著者:
小松 謙介,Kensuke KOMATSU,高橋 浩之,Hiroyuki TAKAHASHI,中沢 正治,Masaharu NAKAZAWA
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Abstract In the environment such as outer space where we cannot maintain the artifacts, it is the robustness that is important for artifacts. Thus the system which has the information processing circuit realizing se lf-maintenance function is desirable. So far some approach is tried to realize self-maintenance function using the qualitative reasoning technique. In this study, we try to apply distributed information processing t echnique to this qualitative reasoning information processor, by arranging many...
英字タイトル:
Distributed information processing for self-restoring artifacts.
第1回
視線情報と拡張現実感を利用した遠隔作業支援システムの開発
著者:
長松 隆,Takashi NAGAMATSU,北川 雄樹,Yuki KITAGAWA,大辻 友雄,Tomoo OTSUJI,吉川 榮和,Hidekazu YOSHIKAWA,大井 忠,Tadashi OHI
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Abstract A remote support system using gazing point and augmented reality is developed. This is a remote communication system of cooperative maintenance work between the supervisor in a re mote support center and the maintenance worker at a certain machine in the plant site to conduct a complicated task. A new device has been constructed to make a practical application. The device consists of a monocular HMD(Head Mounted Display) that displays the information from the supervisor to one eye of the worker, a...
英字タイトル:
Development of a remote support system using gazing point and augmented reality