Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Susumu Miyakawa"'
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 84, Iss 868, Pp 18-00034-18-00034 (2018)
White etching area may be recoginized at the flaking part of a rolling bearing on which high contact stress of several GPa is applied repeatedly. Up to now, there have been less studies of the white etching area of a ball than that of inner and outer
Externí odkaz:
https://doaj.org/article/8eb36d7ec7254ef2ada7474f8a2d59e2
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 853, Pp 17-00231-17-00231 (2017)
Recently, recalls for mass production products such as car components have been frequently reported even for the case that the rate of defects is only of the order of ppm or less. The objective of this paper is to propose the solution to avoid the re
Externí odkaz:
https://doaj.org/article/fb2dbeabe94149799c6955a99d5a12c2
Homogenized elastic stiffness of fin layer in tube-fin structures (Verification for bending loading)
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 822, Pp 14-00291-14-00291 (2015)
The authors recently developed a homogenization method for fin layers in tube-fin structures composed of flat tubes and wavy fins. In this paper, the resulting, homogenized elastic stiffnesses of fin layers with designed and real shapes are applied t
Externí odkaz:
https://doaj.org/article/ddeb919112734b8a802ac5bf85c8419c
Autor:
Shinji Murata, Takahisa Shobu, Yoshihiko Aoyama, Ayumi Shiro, Ryosuke Kubo, Toshimasa Ito, Susumu Miyakawa, Keisuke Iwahori, Kentaro Kajiwara
Publikováno v:
Journal of the Society of Materials Science, Japan. 69:308-314
Autor:
Susumu Miyakawa, Yoshiro Nishimura, Yuya Tanaka, Keiji Yanase, Masahiro Endo, Nobuyuki Miyamoto
Publikováno v:
International Journal of Damage Mechanics. 29:4-18
The torsional fatigue behavior of a high-strength spring steel, SWOSC-V, was investigated. Of particular interest were the influences of small scratches and superimposed static shear stress in the very high cycle fatigue regime. To achieve the resear
Publikováno v:
Procedia Structural Integrity. 14:11-17
Premature delamination failure, characterized by the white structure flaking (WSF) or the white etching crack (WEC), often occurs in rolling element bearings and it deteriorates the durability of bearing substantially. It is known that this failure i
Autor:
Yoshiro Nishimura, Susumu Miyakawa, Y. Ikeda, Masahiro Endo, Yuya Tanaka, Nobuyuki Miyamoto, Keiji Yanase
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 41:1514-1528
Publikováno v:
Journal of the Society of Materials Science, Japan. 67:389-395
Publikováno v:
International Journal of Mechanical Sciences. :348-359
This paper verifies fin-homogenization for finite element analysis of heat exchanger cores with stacking of flat tubes and thin wavy fins. A first-order homogenization method is proposed on the assumption that uniform deformation prevails a short dis
Publikováno v:
Procedia Structural Integrity. 2:1738-1745
This paper describes the fatigue properties of chromium-molybdenum steel in air and diesel oil. 4-point bending fatigue tests were conducted at a stress ratio of R=0.05. The corrosion mark was not confirmed on the specimens tested in diesel oil, and