Experimental Studies of Friction at Tapered Surfaces in Keyless Propeller
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- Kawazoe Tsuyoshi
- 長崎大学
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- Ura Akira
- 長崎大学
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- Nishikido Shingo
- 三菱重工業 (株)
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- Yamaguchi Akira
- NOK (株)
Bibliographic Information
- Other Title
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- キーレスプロペラにおけるテーパ接触面の摩擦に関する一実験
- キーレス プロペラ ニ オケル テーパ セッショクメン ノ マサツ ニ カンス
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Abstract
Pushing-up and torque slip tests were performed using model propeller boss (AlBC3), tiller boss of steering gear (SC410) and shaft (SF440A) to investigate friction behavior of the keyless tapered surfaces and to find out a clue of countermeasures of torque slip problem. As the results of experiments, (1) The coefficients of friction of propeller including pushing-up and torque slip tests are 0.15-0.20 under dry condition. On the other hand, the coefficients of steering gear in dry fit shows higher than 0.20 due to strong adhesion of similar metals. (2) MoS2 lubricant and anti-rust agent NP-19at the contact surfaces predominantly decrease friction and easily cause torque slip. (3) The coefficients of friction in elastoplastic deformation of boss is slightly higher than those in elastic one. From the practical aspect, it is proposed that boss is pushed up into shaft nearly to the upper limit of an allowable pushing-up distance in order to prevent an accident of torque slip.
Journal
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- JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN
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JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN 31 (10), 775-781, 1996
The Japan Institute of Marine Engineering
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Details 詳細情報について
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- CRID
- 1390001205161680512
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- NII Article ID
- 10002041254
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- NII Book ID
- AN00196373
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- ISSN
- 18844758
- 03883051
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- NDL BIB ID
- 4056614
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed