54件が見つかりました。

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第1回
交流磁化プローブを用いた鋳造構造物の材質評価
著者:
Luca BARTOLOMEO,Hisashi ENDO,Tetsuya UCHIMOTO,Mitsuharu SHIWA,Toshiyuki TAKAGI
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This paper studies a method of non-destructive evaluation for the hardness of ductile cast irons employing an AC magnetization probe that evaluates the differences in magnetization characteristics. The analysis of the waveform obtain ed from the probe on the ductile cast iron specimens performs estimating their hardness since mechanical properties are strongly related to two factors: the graphite shape matrices mainly composed of pearlite and ferrite. The wavefor ms around Rayleigh region yield the essenti...
英字タイトル:
Foundry Material Property Evaluation Employing AC Magnetization Probe
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保修作業における高年齢作業者と若手作業者のチームワーク
著者:
作田 博,Hiroshi SAKUDA,志澤 康弘,Yasuhiro SHIZAWA,大橋 智樹,Tomoki OHASHI
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Abstract It is predicted that the average age of workers in Japan will increase during the first half of the 21st century. Therefore, investigations into working surroundings in which older workers can better perform their w ork would be useful. To this end, a questionnaire addressing issues related to working surroundings was conducted among workers in nuclear power plants and the demands for improvement of working surroundings for older worker s are summarized. The demands of “better lighting”, “making t...
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Teamwork between Older Workers and Younger Workers in Maintenance Operations
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保全における経験と科学の統合手法について
著者:
笠井 雅夫,Masao KASAI,熊野 哲嗣,Tetsuji KUMANO
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1.緒言 ータに統合する手法と 専門家の知識の集約の言保全活動に 置までを含む て日常的な活保全活動は設計から建設、運転管理、廃棄措 置までを含めた生産活動全般を包括する極め て日常的な活動で、種々の設備や産業において 一般的に合意されている概念である[1]。 現在の 保全計画は保全技術者の経験と論理構成力に 立脚しているため、合理性を有する最適保全計 画を立案するには、自ずと限界があると考えら れる[1]。より体系化された保全学の手法を用い れば、例えば点検・検査に科学的・工学的理論 を適用して機器の点......
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The Methods Integrating Expert's Experience into Scientific Maintenance Activities
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保全体系化の基本的考え方
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Abstract: Actions to be taken in maintenance of nuclear plants are normally various in its manner and complicated depending on components. Unless systematic views are introduced, it is very difficult to systematize mainte nance actions theoretically and to plan optimized maintenance schemes. The systematic views consist of essentials and variables, an assemble of principles, maintenance langue and maintenance parole, introduction of hierar chical structure, laws and boundary conditions determining maintena...
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Fundamental Concept of Systematization of Technical Maintenance
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保全工学から見た破壊力学健全性評価
著者:
鹿島 光一,Koichi KASHIMA
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Abstract Structural integrity and flaw evaluation for nuclear power plant components has been recently introduced in Japan as the part of Fitness-for-Service Code. Flaw evaluation based on fracture mechanics approach leads to the establishment of a new perspective in the maintenance engineering for inspection, repair and replacement of nuclear components. The present paper describes the significance of the roles of fracture mechanics in maintenance engineering, including the aspects of future development o...
英字タイトル:
Roles of Fracture Mechanics and Structural Integrity in Maintenance Engineering
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保全最適化のためのリスク・インフォームド・メンテナンス手法について
著者:
佐藤 寿彦,Toshihiko SATO
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Abstract This study proposes a method to optimize the maintenance activities of nuclear power plants. Risk Informed Mai ntenance method is based on probabilistic theory which deal the expectation of losses as quantitative Risk. This method compares the maintenance cost and risk, and determines the best maintenance plan on both reliability and financial asp ects. In this study, crack occurrence and growth is evaluated from laboratory data and inspection data using BAYSE-Law....
英字タイトル:
Risk Informed Maintenance Method for Optimizing Maintenance Activities Method for Optimizing Maintenance Activities
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保全最適化の考え方
著者:
高間 信吉,Shinkichi TAKAMA
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Abstract This paper presents a brief intro duction of plant maintenance optimization on its concept and EPRI PM Basis which is popular in US power generation industry....
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Concept of Maintenance Optimization
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保全活動の最適化と保全工学
著者:
三牧 英仁,Hidehito MIKAMI
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Abstract This study tries to give the shape of Maintenologic al-engineering, especially for its academic contents. Using 3x3 matrix for analyzing maintenance activities (PDCA cycle) , some new engineering sciences and their contents are shown....
英字タイトル:
Optimization of Maintenance Activities and Maintenance Engineering
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保全社会学の枠組みとアプローチ
著者:
織田 滿之,Mitsuyuki ODA
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Abstract: Nuclear industries are widely influenced with social perception as much as technical iewpoint. It also referred and come up to plant maintenance activities, especially at extensive naintenance work in annual outage, large-scale repair or modification work and occurrence of ac idents on the facility trouble. Sociological approach for maintenance field, so called Maintenological Sociology, should be onsidered and established from viewpoint of social or human behavior aspect. Subjects of study will ...
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Scheme and Approach to Maintenance related Sociology
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保全頻度の数理的取扱いについて
著者:
笠井 雅夫,Masao KASAI,高瀬 健太郎,Kentaro TAKASE
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Abstract Optimization of the replacement and/or inspection period of plant equipment is one of the main items to rationalize the activities on pla nt maintenance. In this study, we summarized the formulations to optimize the relpacement periods of equipment and/or parts based on the replacem ent policies. We also formulated the mathematical models for optimizing the inspection period of equipment. Then we numerically calculated the opt imum periods of the replacement and/or inspection for hypothetical equi...
英字タイトル:
Mathematical Approach to Rationalization of Maintenance Frequency
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