Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Kiyoshi HATAKENAKA"'
Autor:
Kiyoshi HATAKENAKA, Ryoichiro OBANA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 90, Iss 938, Pp 24-00116-24-00116 (2024)
Rotating machineries supported in journal bearings are operated at a rotational speed between the one where the minimum oil film thickness is ensured to prevent direct contact of the journal and bearing surfaces and the one where self-excited vibrati
Externí odkaz:
https://doaj.org/article/c92b36b646e44a5d911809f30b067d19
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 924, Pp 23-00068-23-00068 (2023)
Journal bearings are an important mechanical element of rotating machines and support the rotor system by oil film reaction forces. As rotational speeds increase, the shear heat of the oil film causes a significant temperature distribution on the jou
Externí odkaz:
https://doaj.org/article/cca1889f335a477fbd536867e37f520f
Autor:
Kiyoshi Hatakenaka, Aoi Honda
Publikováno v:
Tribology Online, Vol 17, Iss 3, Pp 175-195 (2022)
This paper proposes a new THL bearing design method based on an improved version of a precedent method. The precedent method used a model expression prepared in advance to easily and quickly find a crucial predicted data of the maximum bearing temper
Externí odkaz:
https://doaj.org/article/8f885587025a4ec4a45c1f0ec747a37a
Autor:
Kiyoshi HATAKENAKA, Keitaro UCHIDA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 88, Iss 915, Pp 22-00234-22-00234 (2022)
Thermohydrodynamic lubrication (THL) models have been applied to predict the performances of journal bearings that support industrial rotating machineries. The final goal of this study is to propose a THL bearing design method of cylindrical journal
Externí odkaz:
https://doaj.org/article/29247e51fd87424c91670376a3c82eae
Publikováno v:
Tribology Online, Vol 15, Iss 4, Pp 194-200 (2020)
A thermo-hydrodynamic lubrication (THL) theory is applied to journal bearings that support large-sized high-speed rotary machineries and it is confirmed that the maximum pad surface temperature under operation is below an allowable limit value. The t
Externí odkaz:
https://doaj.org/article/0c402beaf4cc4e1e85926a10785940a6
Autor:
Kiyoshi HATAKENAKA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 829, Pp 15-00253-15-00253 (2015)
The oil film flow in large journal bearings usually transits from laminar flow to turbulent one with increase in shaft speed. This paper presents a new turbulent THL (thermo-hydrodynamic lubrication) model based on the low-Reynolds-number k-ε model
Externí odkaz:
https://doaj.org/article/6ae4dc0044b54239930aed8c4979c0a1
Autor:
Yasushi KOZUKI, Kiyoshi HATAKENAKA
Publikováno v:
The Proceedings of Mechanical Engineering Congress, Japan. 2021:S113-06
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc11fb6d1776826d21e867054c4c8843
https://doi.org/10.1299/jsmemecj.2021.s113-06
https://doi.org/10.1299/jsmemecj.2021.s113-06
Autor:
Kaito TERATOKO, Kiyoshi HATAKENAKA
Publikováno v:
The Proceedings of Mechanical Engineering Congress, Japan. 2021:S116-21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4497732fc8c5f6dadd488dbea5675ab1
https://doi.org/10.1299/jsmemecj.2021.s116-21
https://doi.org/10.1299/jsmemecj.2021.s116-21
Autor:
Kiyoshi Hatakenaka
Publikováno v:
Tribology Transactions. 63:935-945
This article proposes a new thermohydrodynamic (THD) bearing design method based on an improved version of a precedent method. The precedent method used two charts prepared in advance to easily and...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47b79d91ef3faae2f478ca00751e1d36
https://doi.org/10.1080/10402004.2020.1778825
https://doi.org/10.1080/10402004.2020.1778825
Publikováno v:
Tribology Online, Vol 15, Iss 4, Pp 194-200 (2020)
A thermo-hydrodynamic lubrication (THL) theory is applied to journal bearings that support large-sized high-speed rotary machineries and it is confirmed that the maximum pad surface temperature under operation is below an allowable limit value. The t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f0f7def20570ecc00c045db59bad5c1
https://doi.org/10.2474/trol.15.194
https://doi.org/10.2474/trol.15.194