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Evaluation Test of Oscillatory Sliding Bearing Materials in Seawater for the Multi-freedom Coupling Device of Multi-connected Floating Body..

Research Project

Project/Area Number 16560123
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionNAGASAKI UNIVERSITY

Principal Investigator

KAWAZOE Tsuyoshi  Nagasaki University, Faculty of Engineering, Professor, 工学部, 教授 (40253629)

Co-Investigator(Kenkyū-buntansha) OKUMURA Tetsuya  Nagasaki University, Faculty of Engineering, Lecture, 工学部, 講師 (10380817)
NAKASHIMA Akira  Nagasaki University, Faculty of Engineering, Research Associate, 工学部, 助手 (30108344)
MORITAKA Hideshirou  Nagasaki University, Faculty of Engineering, Technical Officer, 工学部, 教務員 (90315226)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2005: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsTribology / Wear / Corrosion Wear / Sliding Friction / Seawater-atmosphere / Sliding Bearing / Coupling Device / Floating Structure / 多連結浮体構造物 / 摩擦 / 固体潤滑剤 / 自在継手 / 耐食性
Research Abstract

Floating structures such as Mega float are expected to use the ocean space effectively and to preserve the ocean environment. Especially a multi-connected floating body system (MFBS) composed of many small scaled floating units is worthy of attention. The objective of this study is to evaluate the tribological characteristics of bearing materials and to select the suitable material for the multi-freedom coupling device of multi-connected floating body. Sliding wear tests of seven kinds of materials including two kinds of phenolic resins, two kinds of PTFE, a polyamide and two kinds of copper alloys rubbed against SUS304 (AISI304) of high corrosion resistance were carried out in three kinds of the test environments : in seawater, in the atmosphere and in seawater-atmosphere repeated condition.
The main conclusions obtained are as follows.
(1)Polyamide and Al bronze with embedded graphite and their shaft show low specific wear rate. The both bearing materials are suitable for the coupling device judging from wear resistance and anti-seizure.
(2)Phenolic resins exhibit the highest specific wear rate and give the largest wear amount to their shafts in all the test specimens. It can be attributed to thermosetting of the resins resulting in partial abrasive wear.
(3)Two kinds of PTFE exhibit high specific wear rate despite low friction coefficient.
(4)Pb bronze in the atmosphere develops an indication of seizure with high friction coefficient and high temperature.

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (9 results)

All 2005 2004

All Journal Article (9 results)

  • [Journal Article] 海水カップリング装置用水潤滑すべり軸受材の評価試験2005

    • Author(s)
      河野 通嘉
    • Journal Title

      日本機械学会論文講演集、九州支部第58期総会講演会 No.058-1

      Pages: 99-100

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] 海水中における金属材料の腐植磨耗と電位降下率の関係2005

    • Author(s)
      岩永 弘行
    • Journal Title

      日本機械学会論文講演集、九州支部第58期総会講演会 No.058-1

      Pages: 101-102

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Evaluation Test of Sliding Materials in Seawater for Multi-connected Floating Device2005

    • Author(s)
      Tsuyoshi Kawazoe
    • Journal Title

      The 7 th International Symposium on Marine Engineering Tokyo ISME2005-35-2

      Pages: 126-126

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Evaluation Test of Water-lubricated Sliding Bearing Materials for Marine Ccoupling.2005

    • Author(s)
      Michiyoshi Kono
    • Journal Title

      Proc.of JSME, Kyuushu, No.058-1

      Pages: 99-100

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Relation between Corrosion Wear and Reduction Rate of Potential of Metals in Seawater.2005

    • Author(s)
      Hiroyuki, Iwanaga
    • Journal Title

      Proc.of JSME, Kyuushu, No.058-1

      Pages: 101-102

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Evaluation Test of Sliding Materials in Seawater for Multi-connected Floating Device2005

    • Author(s)
      Tsuyoshi, Kawazoe
    • Journal Title

      The 7th International Symposium on Maine Engineering, Tokyo, ISME2005-35-2

      Pages: 126-126

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 海水中における金属材料の腐食摩耗と電位降下率の関係2005

    • Author(s)
      岩永 弘行
    • Journal Title

      日本機械学会論文講演集、九州支部第58期総会講演会 No.058-1

      Pages: 101-101

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 海水カップリング装置用水潤滑すべり軸受材の評価試験2005

    • Author(s)
      川添 強, 奥村 哲也 他4名
    • Journal Title

      日本機械学会九州支部講演論文集 No.058-1

      Pages: 99-100

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 海水揺動すべり軸受材の摩耗特性2004

    • Author(s)
      川添 強, 中嶋 明 他6名
    • Journal Title

      日本マリンエンジニアリング学術講演会講演論文集(第71回)

      Pages: 27-39

    • NAID

      10015520106

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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