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Exploring the Mechanism of Friction and Wear of Ultrasonic Motors.

Research Project

Project/Area Number 11555076
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section展開研究
Research Field 電力工学・電気機器工学
Research InstitutionTokyo Institute of Technology

Principal Investigator

UEHA Sadayuki  Precision & Intelligence Lab. Tokyo Institute of Technology Professor, 精密工学研究所, 教授 (90016551)

Co-Investigator(Kenkyū-buntansha) ISHII Takaaki  Precision & Intelligence Lab. Tokyo Institute of Technology Research Associate, 精密工学研究所, 助手 (40262323)
NAKAMURA Kentaro  Precision & Intelligence Lab. Tokyo Institute of Technology Associate Professor, 精密工学研究所, 助教授 (20242315)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥13,500,000 (Direct Cost: ¥13,500,000)
Fiscal Year 2000: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1999: ¥8,500,000 (Direct Cost: ¥8,500,000)
Keywordsultrasonic motor / friction material / friction / wear / sliding surfaces / sliding speed / loss / efficiency
Research Abstract

1. Preparation of friction materials for the test.
(1) Engineering plastics and Ceramics. (Carbon-fiber-reinforced-plastics, Al_2O_3, Si_3N_4, SiC and ZrO_2)
2. Testing the wear of the friction materials used for the ultrasonic motors.
(1) Wear was measured by the wear testing machine
3. Fabrication of the ultrasonic motor for the wear test
(1) A hybrid transducer type ultrasonic motor was used for the wear tests.
4. The wear simulation model and the wear evaluation.
(1) Measured wear volumes and simulated values were compared and evaluated the results.
(2) Two types of wear characteristics for the friction materials were found.
(3) Our simulation model can be used for the rough estimation of the life of friction materials.
(4) Our simulation may be applicable for many types of ultrasonic motors and many types of friction materials.
5. Friction and wear test in vacuum.
(1) Wear test was curried out in vacuum environment.
(2) Relatively good combination for vacuum was found.
6. Lubricant usage on the sliding surfaces
(1) Lubricant can be used to improve friction and wear characteristics of the ultrasonic motor.
(2) High driving efficiency was obtained.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (1 results)

All Other

All Publications (1 results)

  • [Publications] 石井孝明,高橋久徳,中村健太郎,上羽貞行,大西一正: "超音波モータ用摩擦材料の摩耗予測法"トライボロジスト. 45. 62-71 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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