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Analysis of Friction Mechanism with Visualization Method of Partial Micro-slip at the Contact Interface

Research Project

Project/Area Number 09650154
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 設計工学・機械要素・トライボロジー
Research InstitutionTohoku University

Principal Investigator

KATO Koji  Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (50005443)

Co-Investigator(Kenkyū-buntansha) ADACHI Koshi  Tohoku University, Graduate School of Engineering, Research Associate., 大学院・工学研究科, 助手 (10222621)
UMEHARA Noritsugu  Tohoku University, Graduate School of Engineering, Associate Professor., 大学院・工学研究科, 助教授 (70203586)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1998: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1997: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsMicro-Slip / Initiation of Slip / Visualization / Micro-Deformation / Correlation Method / Image Processing / Tangential Coefficient / Friction Mechanism / 局所すべり / すべり摩擦 / 介在物 / 摩擦係数
Research Abstract

In order to understand the friction mechanism in the case of contact of two bodes which have complicated shape and non-linear elastic properties, a new visualization method of partial slip is proposed by combining a tribosystem, VTR, correlation method and computer graphics as a "Visual-Tribosystem".
By using this method, several studies were carried out. The obtained results may be summarized as follows :
(1) Results of visualization show increase of slip area at the contact surface of rubber with increase of tangential coefficient in the real time.
(2) It is shown that macro-slip occurs when stick area observed by visualization becomes zero, which means that partial slip visualization provides good enough resolusion.
(3) From the results of visualization, the distribution of partial slip at the interface of contacting surfaces was obtained, and it indicated that the partial slip increased as a result of increasing the tangential coefficient.
(4) From the analysis of effect of inclusion at the contact interface on static friction coefficient, it is clear that static friction coefficient decrease with increasing of inclusion size, and static friction coefficient changes in depend on position of inclusion at the contact interface.
(5) Propagation direction of micro slip area at the contact interface can be classified into two types such as from around to center of contact area and front edge to behind of contact area.
(6) Static friction coefficient and change of micro slip area in the case of contact of two bodies which have complicated shape such as square, triangle, Rectangular, circle, concave and spherical are clarified.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] 加藤康司: "ゴムの摩擦駆動におけるマイクロスリップ" トライボロジスト. 42・5. 369-374 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Koji Kato: "Micro-Slip against Rubber in Friction Drives" Journal of Japanese Society of Tribologists. 42. 369-374 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 加藤康司: "ゴムの摩擦駆動におけるマイクロスリップ" トライボロジスト. 42・5. 369-374 (1997)

    • Related Report
      1998 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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