島田 森
著者に関連した記事は4件です。
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論文
福島第一原子力発電所6号機における液滴衝撃エロージョンによるタービン抽気配管損傷とその対応について
著者:
稲垣 武之,Takeyuki INAGAKI,小林 照明,Teruaki KOBAYASHI,島田 森,Shigeru SHIMADA,井上 龍介,Ryousuke INOUE,薄葉 智,Satoshi USUBA,木村 剛生,Takeo KIMURA
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erosion extraction steam piping liquid drop impingement loss of material turbine rotor replacement
稲垣 武之,Takeyuki INAGAKI,小林 照明,Teruaki KOBAYASHI,島田 森,Shigeru SHIMADA,井上 龍介,Ryousuke INOUE,薄葉 智,Satoshi USUBA,木村 剛生,Takeo KIMURA
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erosion extraction steam piping liquid drop impingement loss of material turbine rotor replacement
Through wall degradation was found on the extraction steam drain piping of Unit 6 of Fukushima Dai-ichi Nuclear Power Plant owned by Tokyo Electric Power Company after replacement of the turbine rotors with those of higher thermal efficiency. The mechanism of this degradation was loss of material due to liquid drop impingement. Since the estimated life time of the piping based on wall thickness measurements before the replacement was at least 9 years, the rapid wall thinning occurred after the replac...
英字タイトル:
Through wall degradation problem of the turbine extraction steam drain piping due to liquid drop impingement and measures taken for this problem at Fukushima Dai-ichi Nuclear Power Plant Unit 6
英字タイトル:
Through wall degradation problem of the turbine extraction steam drain piping due to liquid drop impingement and measures taken for this problem at Fukushima Dai-ichi Nuclear Power Plant Unit 6
第6回
耐熱FBG を用いた高速炉プラント健全性監視システムの開発：耐熱FBG のひずみ計測性能評価
著者:
猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,小林 喬郎,Takao KOBAYASHI
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fast reactor fiber Bragg grating health monitoring high temperature nuclear power plant strain structural integrity
猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,小林 喬郎,Takao KOBAYASHI
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fast reactor fiber Bragg grating health monitoring high temperature nuclear power plant strain structural integrity
A thermal-resistant fiber Bragg grating (FBG) fabricated by femtosecond laser processing was examined to evaluate the performance as a strain sensor, compared with a conventional FBG se nsor. Each FBG was affixed on a stainless-steel beam along with a strain gauge to measure the Bragg wavelength shift as a function of strain. We used the intensity of the reflection spe ctra from the FBGs as a weighting factor to determine the Bragg wavelengths. Although the strain sensitivity for the thermal-resistant FBG ...
英字タイトル:
Development of a health monitoring system using a thermal-resistant fiber Bragg grating for fast reactor power plants: performance evaluation of a thermal-resistant FBG for strain measurement
英字タイトル:
Development of a health monitoring system using a thermal-resistant fiber Bragg grating for fast reactor power plants: performance evaluation of a thermal-resistant FBG for strain measurement
第6回
超短パルスレーザーによるFBG センサの製作と性能評価
著者:
島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,小林 喬郎,Takao KOBAYASHI
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Fiber Bragg Grating High Temperature Pulse Laser Processing Seismic Safety
島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA,猿田 晃一,Koichi SARUTA,月森 和之,Kazuyuki TSUKIMORI,小林 喬郎,Takao KOBAYASHI
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Fiber Bragg Grating High Temperature Pulse Laser Processing Seismic Safety
Fiber Bragg Grating (FBG) is the periodic refractive-index structure in an optical fiber core, where the light of a specific wavelength is reflected. It can be used as te mperature or a distorted sensor by measuring change of the reflective wavelength of FBG. We processed FBG using a Chirped Pulse Amplification titanium sapphire laser. As a result, the peak intensity of reflective spectrum has been successfully improved from -40 dB to -24 dB. Heating test under operational temperature of Fast Breeder React...
英字タイトル:
Fabrication and performance assessment of FBG sensor with pulse laser processing
英字タイトル:
Fabrication and performance assessment of FBG sensor with pulse laser processing
第5回
高速炉高温構造物の健全性モニタリングのための耐熱FBGセンサの開発
著者:
増住 考志,Takashi MASUZUMI,月森 和之,Kazuyuki TSUKIMORI,島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA
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Condition monitoring Fast Reactor FBG High temperature Strain sensor
増住 考志,Takashi MASUZUMI,月森 和之,Kazuyuki TSUKIMORI,島田 幸洋,Yukihiro SHIMADA,西村 昭彦,Akihiko NISHIMURA
発刊日:
公開日:
キーワードタグ:
Condition monitoring Fast Reactor FBG High temperature Strain sensor
Strain sensors, which can be used for integrity monitoring of plant components and piping during the operation period continuously, are effective from the point of view of proac tive maintenance. FBG (Fiber Bragg Grating) sensor is one of the expective sensors and is used in various plants and civil engineering and construction fields except for high te mperature service. In order to apply to the component and piping of fast reactor, heat resistance is an indispensable feature of the sensor. In this study,...
英字タイトル:
Development of heat-resistant FBG sensor for high temperature structures monitoring
英字タイトル:
Development of heat-resistant FBG sensor for high temperature structures monitoring