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Effect of bolted joint layer on the vibration characteristics of high accurate spindle rotor

Research Project

Project/Area Number 16560202
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Dynamics/Control
Research InstitutionSaitama University

Principal Investigator

YAMAMOTO Hiroshi  Saitama University, Engineering, Associate Professor, 工学部, 助教授 (20220494)

Co-Investigator(Kenkyū-buntansha) MIYAJI Ryutaro  Saitama University, Engineering, Research Associate, 工学部, 助手 (00008872)
ZHENG Ying  Saitama University, Engineering, Research Associate, 工学部, 助手 (90375585)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2005: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2004: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywordsspindle / bolt / stiffness / damping / contact force / roughness / countersunk / contact
Research Abstract

The effect of joint layer on the vibration characteristics of the hydrostatic gas bearing spindle rotor is investigated. The test rotor is composed of a journal part and two thrust plates bound with bolts. The each surface of bolted joints is processed by two methods in order to change the roughness and the roundness of surface. In all conditions of joint layer, natural frequencies increase and damping ratios decrease as the clamping torque of each bolt increases. On the other hands, in all condition of clamping torque, natural frequencies increase and damping ratios decrease as the roughness and the roundness of surface decreases.
By fabricating the optimum diameter's countersunk hole near the clamping bolt screw hole, the maximum amplitude of the spindle rotor can be decreased because the stiffness and the damping of the joint layer can be increased.
We propose the contact stiffness and damping model of the bolted joint layer of a spindle rotor and the identification procedure of the contact stiffness and damping of the normal and the tangential directions. The contact stiffness in both directions and damping in the normal direction increase as the clamping torque of each bolt increases.

Report

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

    (3 results)

All 2006

All Journal Article (3 results)

  • [Journal Article] スピンドルロータの振動特性に締結部がおよぼす影響2006

    • Author(s)
      山本浩, 下村龍一, 鄭頴
    • Journal Title

      日本機械学会関東支部第12期総会講演会講演論文集 060-1

      Pages: 475-476

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effect of Bolted Joint Layer on the Vibration Characteristics of Spindle Rotor2006

    • Author(s)
      Hiroshi YAMAMOTO, Ryuichi SHIMOMURA, Ying ZHENG
    • Journal Title

      Proc.Of JSME 12^<th> Kanto branch conference 060-1

      Pages: 475-476

    • NAID

      110006793579

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] スピンドルロータの振動特性に締結部がおよぼす影響2006

    • Author(s)
      山本 浩, 下村 龍一, 鄭 頴
    • Journal Title

      日本機械学会関東支部第12期総会講演会講演論文集 060-1

      Pages: 475-476

    • Related Report
      2005 Annual Research Report

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

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