A seismic analysis has been performed showing that the seismic interaction between the UIS and the FHM can be avoided eliminating the internal clearance of bearing at the FHM arm joint. An angular contact ball bearing is suitable for the new FHM since it can eliminate gaps by preload pressure. A major problem of the FHM bearings is lubrication since the contact pressure between the steel rings and ball of the ball bearing is larger than that of the roller bearing used in the previous design. Additionally, FHM operating temperature is about 200deg-C and normal grease is not applicable under argon gas with sodium vapor to prevent contamination of grease in the primary sodium coolant. An endurance test with 1/10 scale bearings in the air has been performed to show applicability of angular contact ball bearings to the FHM arm joint. The results with 20,000cycle showed that bearings with combination of MoS2 coating steel rings and ceramics balls can be tolerable as the FHM operating condition. A full-scale bearing test in argon gas with sodium vapor has also been demonstrated to reveal bearing size and sodium vapor effects.
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14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-4244-4
PROCEEDINGS PAPER
Development of a Slim Manipulator Type Fuel Handling Machine for a Commercialized Fast Reactor
Yoshitaka Chikazawa,
Yoshitaka Chikazawa
Japan Atomic Energy Agency, Oarai, Ibaraki-ken, Japan
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Shinichi Usui,
Shinichi Usui
Japan Atomic Energy Agency, Oarai, Ibaraki-ken, Japan
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Mamoru Konomura,
Mamoru Konomura
Japan Atomic Energy Agency, Oarai, Ibaraki-ken, Japan
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Daisuke Sadahiro,
Daisuke Sadahiro
Fuji Electric Systems Company, Ltd., Kawasaki, Japan
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Katsuhiro Tozawa,
Katsuhiro Tozawa
Fuji Electric Systems Company, Ltd., Kawasaki, Japan
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Mikio Toda,
Mikio Toda
Mitsubishi Heavy Industries, Yokohama, Japan
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Shoji Kotake
Shoji Kotake
Japan Atomic Power Company, Oarai, Ibaraki-ken, Japan
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Yoshitaka Chikazawa
Japan Atomic Energy Agency, Oarai, Ibaraki-ken, Japan
Shinichi Usui
Japan Atomic Energy Agency, Oarai, Ibaraki-ken, Japan
Mamoru Konomura
Japan Atomic Energy Agency, Oarai, Ibaraki-ken, Japan
Daisuke Sadahiro
Fuji Electric Systems Company, Ltd., Kawasaki, Japan
Katsuhiro Tozawa
Fuji Electric Systems Company, Ltd., Kawasaki, Japan
Toru Hori
Kawasaki Plant Systems, Tokyo, Japan
Mikio Toda
Mitsubishi Heavy Industries, Yokohama, Japan
Shoji Kotake
Japan Atomic Power Company, Oarai, Ibaraki-ken, Japan
Paper No:
ICONE14-89266, pp. 521-527; 7 pages
Published Online:
September 17, 2008
Citation
Chikazawa, Y, Usui, S, Konomura, M, Sadahiro, D, Tozawa, K, Hori, T, Toda, M, & Kotake, S. "Development of a Slim Manipulator Type Fuel Handling Machine for a Commercialized Fast Reactor." Proceedings of the 14th International Conference on Nuclear Engineering. Volume 3: Structural Integrity; Nuclear Engineering Advances; Next Generation Systems; Near Term Deployment and Promotion of Nuclear Energy. Miami, Florida, USA. July 17–20, 2006. pp. 521-527. ASME. https://doi.org/10.1115/ICONE14-89266
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