144件が見つかりました。

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第5回
オンサイト潤滑油診断－可搬型摩耗診断装置－
著者:
宮田 昇,Noborn MIYATA,神谷 徹,Toru KAMIYA,川畑 雅彦,Masahiko KAWABATA
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Nowadays, CBM system became more common method to reduce cost spent on destructive inspections. With CBM, we can reduce significant maintenance cost since we can judge the machine need to be destructed or not. We can also do premeditated inspections. CBM is very useful for tribological appar atus. Especially, oil analysis has much higher sensitivity and speed than other diagnostic method such as vibration, temperature and etc. At TRIBOTEX Co., Ltd., we diagnose several conditions of machine by using variou...
英字タイトル:
Introduction of the ON-TIME ON-SITE TRIBO Condition Monitoring system
第5回
オンサイト非破壊検査用可搬型950keV XバンドライナックX線源
著者:
夏井 拓也,Takuya NATSUI,山本 智彦,Tomohiko YAMAMOTO,坂本 文人,Fumito SAKAMOTO,谷口 善洋,Yoshihiro TANIGUCHI,田口 博基,Hiroki TAGUCHI,遊佐 訓孝,Noritaka YUSA,上坂 充,Mitsuru UESAKA,福田 茂樹,Shigeki FUKUDA,明本 光生,Mitsuo AKEMOTO,田辺 英二,Eiji TANABE,森田 成基,Seiki MORITA
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吉田 光宏 Mitsuhiro YOSHIDA 山本 昌志 Masashi YAMAMOTO 中村 直樹 Naoki NAKAMURA ...
英字タイトル:
Portable 950keV X-band Linac X-ray Source for On-site NDT
第5回
ガイド波による配管減肉検査システム
著者:
小平 小治郎,Kojirou KODAIRA,永島 良昭,Yoshiaki NAGASHIMA,三木 将裕,Masahiro MIKI,遠藤 正男,Masao ENDOU
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A pipe inspection system using ultrasonic guided wave with inter-digital transducer was developed. In this system, for uni-directional transmission, a pair of transducer is set axially on the pipe with a separation of one-quarter of the wavelength, and a one-quarter period delayed anti-phased waveforms are applied to the pair. By this method, the amplitude of the syn thetic traveling wave in the minus direction can be completely decreased to zero in theory. For 50A pipe specimen, artificial discontinuities...
英字タイトル:
A Pipe Inspection System Using Ultrasonic Guided Wave
第5回
コールドスプレー法による構造物のき裂・損傷部に対する補修技術に関する基礎的研究
著者:
小川 和洋,Kazuhiro OGAWA,天尾 聡,Satoshi AMAO,市川 裕士,Yuji ICHIKAWA,庄子 哲雄,Tetsuo SHOJI
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This study proposes an innovative technique for repairing of cracked or damaged parts of structures, such as nuclear or thermal power plants, by means of cold gas dynamic spray (CS) technique. In the case of generation of cracks etc, in the structure, the cracks can be repaired by welding. However, the welding spends considerable time on repair, and also needs special skills. The CS techni que is known as a new technique not only for coatings but also for thick depositions. It has many advantages, i.e. ...
英字タイトル:
Fundamental Study on Repairing Technique for Cracked or Damaged Parts of Structuresby Cold Gas Dynamic Spray Technique
第5回
スマートアレイプローブの開発
著者:
前田 功太郎,K. MAEDA,下根 純理,J. SHIMONE,布子 章,A. NUNOKO,赤川 純一,J. AKAGAWA,永田 泰章,Y. NAGATA,泉田 博幸,H. IZUMIDA,原田 豊,Y. HARADA
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In 1998, NEL developed X-probe in cooperation with foreign firms. Recently NEL has developed the transmit-receive type array probe characterized with a significantly improved resolution for circumferential cracks. Th e advanced probe, called Smart Array Probe, has been developed based on the result of detailed numerical simulation. The doubled channels in the circumferential mode have greatly improved the circumferential resoluti on of Smart Array Probe. With all the circumferential mode channels on the sa...
英字タイトル:
Development of Smart Array Probe
第5回
ディーゼル機関診断の適用について
著者:
吉永 岳,Takeshi YOSHINAGA,林 治次,Haruji HAYASHI,笛吹 博巳,Hiromi USUI,鶴園 篤哉,Atsuya TSURUZONO,松田 隆文,Takafumi MATSUDA
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The Japan Atomic Power Company JAPC began to implement Condition Based Maintenance CBM for rotating components pumps, fans and electric motors from 1999and, also has begun to apply diesel engine diagnostic techniques at our three nuclear power plants since 2004 This paper provides a description of the CBM methods used for diesel engines in nuclear standby service, a summary of the procedures to introduce t hese diagnostic techniques to our nuclear power plants, and experience with the application of these...
英字タイトル:
Application of Diagnostic System for Diesel Engine
第5回
ハイブリット計測による配管ヘルスモニタリング法
著者:
田川 明広,Akihiro TAGAWA,上田 雅司,Masashi UEDA,宮原 信哉,Shinya MIYAHARA,山下 卓哉,Takuya YAMASHITA
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This paper describes the development of a new sensor for the pipe health monitoring. The Hyb rid measuring using EMAT was made as a trial. It examined and checked that it could measure....
英字タイトル:
The pipe health monitoring method by Hybrid measurement using ultrasonic
第5回
パルスECT法による肉厚および導電率測定のシミュレーション
著者:
程 衛英,Weiying CHENG,古村 一朗,Ichiro KOMURA
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A transient eddy current measurement method is presented to determine the thickness and conductivity of a conductive plate. The conductive plate is induced by an air-cored coil, the magnetic flux density along the axial is measured and the various signals corresponding to plates with dif ferent thickness and conductivity are calculated using a 3D transient eddy current simulator. Characteristic features are obtained from the tran sient response. A similarity-based modeling method is utilized in this study ...
英字タイトル:
Simulation of the Transient Eddy Current Measurement for the Characterization of Depth and Conductivity of a Plate
第5回
フェーズドアレイUTによる炉内配管への適用
著者:
平澤 泰治,Taiji HIRASAWA,湯口 康弘,Yasuhiro YUGUCHI,村上 功治,Koji MURAKAMI,大坪 徹,Tooru OOTSUBO,成瀬 克彦,Katsuhiko NARUSE
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The improvement of defect detection and sizing capabilities for nondestructive inspection technique has been required in order to ensure the reliable operation and life extension of nuclear power plant . Immersion phased array UT technique which is not affected the surface geometry of welds has been developed for inspection of BWR internals such as shroud, shroud support, and so on. Furthermore, thin -type array probe was developed and was examined in UT of core spray piping welds in the narrow region betw...
英字タイトル:
Application of Phased Array UT on BWR Reactor Internals Piping
第5回
フェーズドアレイ式超音波探傷装置の開発
著者:
菊池 修,Osamu KIKUCHI,大和谷 直史,Naofumi YAMATOYA,海野 友洋,Tomohiro UMINO,馬場 淳史,Atsushi BABA
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This study presents new phased array UT equipments, one is developed as portable type for field inspection and the other is developed for 2D-matrix array (3D Focus-UT ). The pulser of square burst wave was adopted for these new equipments to enhance flaw echo amplitude. At over 3 cycles of square burst cycle, the authors confirmed o ver 10dB enhancement of bottom echo amplitude. Moreover, a new flaw imaging method using S-SAFT was also adopted for equipments to improve SN ratio and flaw echo reso lution in...
英字タイトル:
Development of Ultrasonic Inspection Equipment Using Phased Array Method
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