Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Shigeki Okamura"'
Autor:
Tomohiko YAMAMOTO, Tomoyoshi WATAKABE, Masashi MIYAZAKI, Shigeki OKAMURA, Takayuki MIYAGAWA, Shinobu YOKOI, Tsuyoshi FUKASAWA, Satoshi FUJITA
Publikováno v:
Mechanical Engineering Journal, Vol 11, Iss 2, Pp 23-00393-23-00393 (2024)
A sodium-cooled fast reactor (SFR) considers adopting 3-dimensional seismic isolation devices for withstanding seismic loads not only horizontal but also vertical direction. A seismic isolation device consists of a laminated rubber bearing and horizo
Externí odkaz:
https://doaj.org/article/9cdf80201ac6499b84d50d009c54f150
Autor:
Tsuyoshi FUKASAWA, Tomoyuki HIRAYAMA, Shinobu YOKOI, Akihiko HIROTA, Takahiro SOMAKI, Masaki YUKAWA, Takayuki MIYAGAWA, Masato UCHITA, Tomohiko YAMAMOTO, Masashi MIYAZAKI, Tomoyoshi WATAKABE, Shigeki OKAMURA, Satoshi FUJITA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 924, Pp 23-00023-23-00023 (2023)
The seismic resistance of nuclear power plants, particularly those using Sodium-Cooled Fast Reactor (SFR) design, is of crucial significance. This paper presents an innovative three-dimensional seismic isolation system developed to address the inhere
Externí odkaz:
https://doaj.org/article/ad7bd3d4cdee4bbe8c4fef6eb06ebd1b
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 88, Iss 911, Pp 22-00071-22-00071 (2022)
Elevators are essential for means of vertical transportation. Recently elevators, which are installed in high buildings, are long stroke. These elevator ropes are longer than conventional elevator ropes. The natural period of the elevator rope become
Externí odkaz:
https://doaj.org/article/2561694a73f34a37a71f2c7fac99d04c
Autor:
Tsuyoshi FUKASAWA, Takayuki MIYAGAWA, Masato UCHITA, Tomohiko YAMAMOTO, Masashi MIYAZAKI, Shigeki OKAMURA, Satoshi FUJITA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 898, Pp 21-00007-21-00007 (2021)
This paper describes a fundamental study on the seismic safety margin for isolated structures using laminated rubber bearings. The variation of the seismic response assumed in the isolated structures will occur under the superposition of "Variations
Externí odkaz:
https://doaj.org/article/0cd0ac93899740d4b62d91bf34ef0a96
Autor:
Tsuyoshi FUKASAWA, Shigeki OKAMURA, Tomohiko YAMAMOTO, Nobuchika KAWASAKI, Takahiro SOMAKI, Yu SAKURAI, Nobuo MASAKI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 859, Pp 17-00502-17-00502 (2018)
This paper describes the results of the static loading tests using half-scale thick rubber bearings to investigate the fundamental characteristics such as horizontal and vertical restoring force applied for a Sodium-cooled-Fast-Reactor (SFR). The thi
Externí odkaz:
https://doaj.org/article/2f171855dbb24d49b94d9caf7be2a51d
Autor:
Tsuyoshi FUKASAWA, Shigeki OKAMURA, Tomohiko YAMAMOTO, Nobuchika KAWASAKI, Satoru INABA, Takahiro SOMAKI, Yusuke SAMEJIMA, Nobuo MASAKI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 852, Pp 17-00050-17-00050 (2017)
This paper describes design formulas and creep characteristics for thick rubber bearing applied to the Sodium-cooled Fast Reactor, which are based on the static loading test and creep test using scale models. The thick rubber bearing, which has a rub
Externí odkaz:
https://doaj.org/article/f60ef2ab464d4568b3d34dc98f70b64f
Autor:
Tomoyoshi WATAKABE, Tomohiko YAMAMOTO, Tsuyoshi FUKASAWA, Shigeki OKAMURA, Takahiro SOMAKI, Ryota MOROBISHI, Yu SAKURAI, Kouji KATO
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 850, Pp 16-00444-16-00444 (2017)
A seismic isolation system composed of a thick rubber bearing and an oil damper has been developed for Sodium-Cooled Fast Reactor. One of the advantages of the isolation system is the use of thick rubber bearings to ensure the longer vertical natural
Externí odkaz:
https://doaj.org/article/3058c567bf834a0c817443286c87c540
Autor:
Noriyo Horikawa, Benjamin Guennec, Takaharu Kashi, Toshiro Miyajima, Takahiro Kinoshita, Shigeki Okamura, Akiyoshi Sakaida, Yuki Kawano, Yoshiro Iwai
Publikováno v:
Journal of Materials Engineering and Performance. 31:8808-8822
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b6e0bb85373737b067855a268cdd703
https://doi.org/10.1007/s11665-022-06917-y
https://doi.org/10.1007/s11665-022-06917-y
Autor:
Nobuo MASAKI, Kouji KATO, Tomohiko YAMAMOTO, Takayuki MIYAGAWA, Satoshi FUJITA, Shigeki OKAMURA
Publikováno v:
AIJ Journal of Technology and Design. 28:81-84
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08eea97631eaa8c855d0900f3d879ec9
https://doi.org/10.3130/aijt.28.81
https://doi.org/10.3130/aijt.28.81
Autor:
Shigeki OKAMURA, Tomoyuki HIRAYAMA, Shinobu YOKOI, Takahiro SOMAK, Takayuki MIYAGAWA, Masato UCHITA, Tomohiko YAMAMOTO, Masashi MIYAZAKI, Tsuyoshi FUKASAWA, Satoshi FUJITA
Publikováno v:
The Proceedings of Mechanical Engineering Congress, Japan. 2022:J101-09
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb6cdc7731f60513c477873caaba52bb
https://doi.org/10.1299/jsmemecj.2022.j101-09
https://doi.org/10.1299/jsmemecj.2022.j101-09