宇宙用液体潤滑に関する研究

Material type: 文書・図像類

Author: 鈴木, 峰男ほか

Publisher: 宇宙航空研究開発機構

Publication date: 2006-01-20

Material Format: Digital

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Note (General)：: This paper describes three topics for the study on oil-lubricated ball bearings and lubricants in space. Firstly, a numerical study on EHL point conta...

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Material Type: 文書・図像類
Title: 宇宙用液体潤滑に関する研究
Author/Editor: 鈴木, 峰男
佐々木, 彰
宮馬, 浩
小原, 新吾
田中, 康夫
野木, 高
市川, 信一郎
井澤, 克彦
Suzuki, Mineo
Sasaki, Akira
Miyaba, Hiroshi
Obara, Shingo
Tanaka, Yasuo
Nogi, Takashi
Ichikawa, Shinichiro
Izawa, Katsuhiko
Author Heading: 鈴木, 峰男
佐々木, 彰
宮馬, 浩
小原, 新吾
田中, 康夫
野木, 高
市川, 信一郎
井澤, 克彦
Suzuki, Mineo
Sasaki, Akira
Miyaba, Hiroshi
Obara, Shingo
Tanaka, Yasuo
Nogi, Takashi
Ichikawa, Shinichiro
Izawa, Katsuhiko
Publication, Distribution, etc.: 宇宙航空研究開発機構
Publication Date: 2006-01-20
Publication Date (W3CDTF): 2006-01-20
Alternative Title: Study on liquid lubrication in space
Periodical title: 宇宙航空研究開発機構特別資料: 平成16年度総合技術研究本部宇宙領域宇宙科学研究本部合同研究成果報告書:人工衛星系基盤技術 = JAXA Special Publication: FY2004 Report of Joint Research Achievements of the Space Division of Institute of Aerospace Technology and Institute of Space and Astronautical Science: Basic Technologies of Satellite Systems
No. or year of volume/issue: JAXA-SP-05-008
Volume: JAXA-SP-05-008
Pages: 171-176
ISSN (Periodical Title): ISSN : 1349-113X
Text Language Code: jpn
Subject Heading: 宇宙機用潤滑
航空宇宙環境
ボールベアリング
弾性流体潤滑
トライボロジー
潤滑油
油膜
リアクションホイール
ジャイロスコープ
イオン性液体
spacecraft lubrication
aerospace environment
ball bearing
electro-hydrodynamic lubrication
tribology
lubricating oil
oil film
reaction wheel
gyroscope
ionic liquid
Target Audience: 一般
Note (General): This paper describes three topics for the study on oil-lubricated ball bearings and lubricants in space. Firstly, a numerical study on EHL point contacts with nonuniform inlet film thickness, which results from repeated ball passings, is presented. At high values of speed and viscosity, the central film thickness can decrease with speed and viscosity, which agrees with common experimental experience. Secondly, downsized, high-resolution Laser Induced Fluorescence system for measuring oil film thickness of a ball bearing was developed in TIT/JAXA collaboration. The measurement with the LIF system revealed that the film thickness on the outer-raceway was decreased by repeated ball passings, and, finally, very thin film of approximately 0.41 micrometer was left to contribute to bearing lubrication. Lastly, some tribological properties of an ionic liquid were investigated by using a pin-on-disc friction and wear tester. Due to running-in, the coefficient of friction of the ionic liquid decreased with time to a very low value. Wear of the specimens lubricated with the ionic liquid was substantially comparable to that with a paraffin-based oil.
資料番号: AA0049054035
レポート番号: JAXA-SP-05-008
Access Restrictions: 限定公開
Periodical Title (NCID): AA11984031
https://ci.nii.ac.jp/ncid/AA11984031
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ