Zobrazeno 1 - 10
of 379
pro vyhledávání: '"Hiromu Hashimoto"'
Publikováno v:
Tribology Online, Vol 13, Iss 5, Pp 232-240 (2018)
Oil whips might present a risk that is associated with bearing seizures. To conveniently suppress oil whips, a stabilization method using starved lubrication has been proposed. As the oil film becomes thinner, an increase in oil film temperature is e
Externí odkaz:
https://doaj.org/article/5b0b7ecaa8d240a4b0f1140ed1d34a63
Publikováno v:
Tribology Online, Vol 10, Iss 2, Pp 115-120 (2015)
This paper describes experimental and theoretical verification in impact response of optimized grooved bearing designed by topological optimization. Firstly, in order to measure the impact response characteristics accurately temperature compensation
Externí odkaz:
https://doaj.org/article/a2472c01f38b43159df1b2b039f0db18
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 848, Pp 16-00457-16-00457 (2017)
In this paper, a new stabilization method which can control an oil whip utilizing the starved lubrication on small bore journal bearing is described. Oil whip is one of the excited vibration that is caused by the action of oil film force of journal b
Externí odkaz:
https://doaj.org/article/09c15f773554443a9e96cebcdac14f82
Publikováno v:
Lubricants, Vol 7, Iss 9, p 74 (2019)
It is important to predict the gaseous phase area of journal bearing. However, a detailed calculation method for such gaseous phase areas has not yet been proposed. In this study, the gaseous-phase areas in small bore journal bearings under flooded a
Externí odkaz:
https://doaj.org/article/da65a118ed1e4efab9ba57d6176b9fe9
Autor:
Hisayoshi NAKA, Hiromu HASHIMOTO
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 82, Iss 833, Pp 15-00209-15-00209 (2016)
Dragonflies can perform both of gliding and flapping flight and have high maneuverability in spite of small-size. The aim of this study is to develop Micro Air Vehicle (MAV) based on the flight of dragonfly. The characteristics of wings are very impo
Externí odkaz:
https://doaj.org/article/e35a74dba56846df8fb4e3187a7602f0
Autor:
Hiromu HASHIMOTO, Yuta SUNAMI
Publikováno v:
Mechanical Engineering Journal, Vol 3, Iss 1, Pp 15-00463-15-00463 (2016)
Mainly produced on roll-to-roll systems, plastic films are used in various high functional products. During the final stage of the production, the films are continuously wound into a roll, which is then shipped to storage and transported; in some cas
Externí odkaz:
https://doaj.org/article/fe9adb72c9834b198e666cb267764f08
Autor:
Hiromu HASHIMOTO, Yuta SUNAMI
Publikováno v:
Mechanical Engineering Journal, Vol 2, Iss 6, Pp 15-00342-15-00342 (2015)
The webs such as paper, plastic film and thin metal are produced by Roll-to Roll manufacturing system, and are wound into a roll in the final process of this system. However, if the winding conditions of the web are inappropriate, the defects such as
Externí odkaz:
https://doaj.org/article/ccc37f1dcd0745dbbc37ccdf242b1a03
Autor:
Katsumi AOKI, Hiromu HASHIMOTO
Publikováno v:
Journal of Fluid Science and Technology, Vol 5, Iss 3, Pp 503-514 (2010)
Continuous flexible thin material, such as paper, textiles, and plastic films, are referred to as webs. At present, web machines are used in various fields. However, a number of problems regarding web handling industries remain to be solved. Generall
Externí odkaz:
https://doaj.org/article/2c55e84d595c454ab3ee5a34336dc21f
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 4, Iss 1, Pp 70-81 (2010)
This paper describes the application of geometry optimization method proposed by Hashimoto to the design of air lubricated thrust bearings used for HDD spindle motors. The optimization is carried out to maximize the dynamic stiffness of air films bec
Externí odkaz:
https://doaj.org/article/118d0b667ae141399f129fa534802854
Autor:
Shinji HIKITA, Hiromu HASHIMOTO
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 4, Iss 1, Pp 226-237 (2010)
We describe an entirely new method of improving the slippage between web and roller. First, the concept of a micro-grooved roller is introduced, and then a theoretical model for estimating the slip onset velocity under the transport of web by the mic
Externí odkaz:
https://doaj.org/article/5ae63ae79c2c48779c23678810011507