Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Norifumi Miyanaga"'
Publikováno v:
Tribology in Industry, Vol 45, Iss 4, Pp 634-642 (2023)
In this study, the effects of three types of dimples with different internal structures on the fluid lubrication characteristics of seal-like thrust bearings were experimentally and numerically investigated. In the experiments, the load-carrying capa
Externí odkaz:
https://doaj.org/article/dd695efe776640978297e83fc0a9e718
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 14, Iss 3, Pp JAMDSM0041-JAMDSM0041 (2020)
This study involves experimental investigations of the hydrodynamic lubrication performance of dimpled parallel thrust bearings. Circular and rectangular dimples were created on lubricating surfaces and the hydrodynamic effects were evaluated. The lo
Externí odkaz:
https://doaj.org/article/54483e182aca4d2f8892f42660a1c694
Publikováno v:
Tribology Online, Vol 11, Iss 5, Pp 568-574 (2016)
The purpose of this study is to find out the effects of hematocrit of the sealed blood on the leakage characteristics of blood cell components and plasma components in a mechanical seal, which separates blood from cooling water. The hematocrit was co
Externí odkaz:
https://doaj.org/article/88987411fb874975a2bc2ef2be544a56
Autor:
Jun TOMIOKA, Norifumi MIYANAGA
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 7, Iss 6, Pp 876-887 (2013)
Herringbone grooved aerodynamic journal bearings have better stability characteristics than plane aerodynamic journal bearings. In addition, the use of flexibly supported bearings is one of the efficient way to improve the bearing stability. Therefor
Externí odkaz:
https://doaj.org/article/0d80e033e8f842d2b583cf4c36fb6d8f
Autor:
Jun Tomioka, Norifumi Miyanaga
Publikováno v:
Tribology Online, Vol 3, Iss 7, Pp 366-369 (2008)
The purpose of this paper is to measure the non-linear dynamic properties of O-rings in wide frequency ranges including in the ultra-high-speed rotational regions and to calculate the stability threshold of herringbone grooved aerodynamic journal bea
Externí odkaz:
https://doaj.org/article/4df195b3f67b4abdb1377d45ded2f77d
Autor:
Shoji NOGUCHI, Norifumi MIYANAGA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 821, Pp 14-00385-14-00385 (2014)
Load is an important factor which has an influence to life cycle and performance in rolling bearing. The life cycle becomes shorter, and the sound and vibration intend to increase when a large load is applied. On the other hand, too small load causes
Externí odkaz:
https://doaj.org/article/3ff1fa42b9294728ad5b0c2c3a5ed5a9
Autor:
Jun TOMIOKA, Norifumi MIYANAGA
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 8, Iss 1, Pp JAMDSM0006-JAMDSM0006 (2014)
A miniature mechanical seal with the cooling water circulating system has been developed as a solution of the shaft seal problems in rotary blood pumps. The present paper describes the effect of the surface roughness in the sealing gap on the shaft s
Externí odkaz:
https://doaj.org/article/61213efa1fd04d33990bea3877c65367
Publikováno v:
Advances in Science and Technology.
This study involved an experimental investigation of the hydrodynamic lubrication performance of dimpled seal-like thrust bearings. Circular dimples were created on lubricating surfaces and the hydrodynamic effects were evaluated. The load-carrying c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efef52c8ed9de8684655a0750e2810a4
https://doi.org/10.4028/www.scientific.net/ast.111.7
https://doi.org/10.4028/www.scientific.net/ast.111.7
Publikováno v:
Materials
Volume 14
Issue 18
Materials, Vol 14, Iss 5222, p 5222 (2021)
Volume 14
Issue 18
Materials, Vol 14, Iss 5222, p 5222 (2021)
This paper described unique hysteresis phenomena that appear in the hydrodynamic lubrication properties of dimpled thrust bearings. A seal-type thrust bearing specimen was textured with dimples. The load-carrying capacity and frictional torque were m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0979757e28e807de7073667fd4b2d980
Autor:
Norifumi Miyanaga, Jun Tomioka
Publikováno v:
Key Engineering Materials. 823:117-122
Electroless nickels have been used in practical applications as versatile materials for anti-wear. The wear resistance is well-improved as a composite coating by incorporating particles. Composite platting offers various mechanical and electoronic fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25d14273f44131b4e85e97016a497053
https://doi.org/10.4028/www.scientific.net/kem.823.117
https://doi.org/10.4028/www.scientific.net/kem.823.117