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  • Summary & Details

Study on Friction Reduction in Oil-Film Journal Bearings Using Microbubbles Application and Evaluation of Novel Oil Grooves

マイクロバブルによる油膜すべり軸受の摩擦低減に向けた検討 新規給油溝の適用と評価

Detailed Information

Author(J)1) 坂部 翔大, 2) 吉村 友輝, 3) 山崎 佑人, 4) 権田 晃生, 5) 川本 裕樹, 6) 畔津 昭彦, 7) 落合 成行
Author(E)1) Shodai Sakabe, 2) Yuki Yoshimura, 3) Yuto Yamazaki, 4) Koki Gonda, 5) Yuki Kawamoto, 6) Akihiko Azetsu, 7) Masayuki Ochiai
Affiliation(J)1) 東海大学, 2) 東海大学, 3) 東海大学, 4) 東海大学, 5) 東海大学, 6) 東海大学, 7) 東海大学
Affiliation(E)1) Tokai University, 2) Tokai University, 3) Tokai University, 4) Tokai University, 5) Tokai University, 6) Tokai University, 7) Tokai University
Abstract(J)油膜すべり軸受においてマイクロバブルと呼ばれる微細な気泡の適用によって摩擦が低減することが実証されており,摩擦低減効果の向上には軸受すきま内のボイド率(液相に対する気相の体積割合)の上昇が影響している.そこで,高ボイド率化に向けた新規給油溝を検討し,それを有した軸受の摩擦トルク測定実験を実施した.

Translation

Abstract(E)It has been demonstrated that microbubbles reduce friction in oil-film journal bearings, where an increase in the void fraction (the volumetric ratio of the gas phase to the liquid phase) within the bearing clearance enhances the friction reduction effect. Therefore, this study investigated a novel oil groove design aimed at increasing the void fraction, and friction torque measurement experiments were conducted on a bearing incorporating this groove.

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