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Development of effective vibration reduction technology for automotive automatic transmissions

Research Project

Project/Area Number 15K05866
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Dynamics/Control
Research InstitutionOita University

Principal Investigator

RYU TAKAHIRO  大分大学, 理工学部, 教授 (60230877)

Co-Investigator(Kenkyū-buntansha) 松崎 健一郎  鹿児島大学, 理工学域工学系, 教授 (80264068)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords回転体の振動 / 強制振動 / 非線形振動 / オートマチックトランスミッション
Outline of Final Research Achievements

According to realize the fuel economy for cars, various vibration problems newly occur in automatic transmissions. The purpose of this study is to clarify the mechanism of the vibration problem at the lock-up damper spring and to suppress the vibration in automatic transmissions. The subharmonic vibration of order 1/2 occurs due to the piecewise-linear spring characteristics at the lock-up damper in the torque converter.The theoretical analysis and the experiments were conducted to clarify the generation mechanism and the countermeasure by using the fundamental one degree-of-freedom system. The mechanism of the nonlinear vibration of the centrifugal pendulum absorber for the actual vehicle was also clarified theoretically. Moreover, the genetic algorithm was developed and the new vibration reduction mechanisms and its optimum design were proposed.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (9 results)

All 2017 2016 2015

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results,  Acknowledgement Compliant: 4 results) Presentation (3 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] TORSIONAL VIBRATION SUPPRESSION IN AUTOMATIC TRANSMISSION POWERTRAIN USING CENTRIFUGAL PENDULUM VIBRATION ABSORBER2017

    • Author(s)
      Takashi Nakae, Takahiro Ryu and Kenichiro Matsuzaki
    • Journal Title

      Proceedings of 24th international congress on sound and vibration

      Volume: 1 Pages: 1-8

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fundamental study of subharmonic vibration of order 1/2 in automatic transmissions for cars2016

    • Author(s)
      Takahiro Ryu, Takashi Nakae, Kenichiro Matsuzaki et al.
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 744 Pages: 1-11

    • DOI

      10.1088/1742-6596/744/1/012206

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Optimal Design of Spring Characteristics of Damper for Subharmonic Vibration in Automatic Transmission Powertrain2016

    • Author(s)
      Takashi Nakae, Takahiro Ryu, Kenichiro Matsuzaki et al.
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 744 Pages: 1-12

    • DOI

      10.1088/1742-6596/744/1/012208

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Fundamental Study of Subharmonic Vibration in Automatic Transmissions2015

    • Author(s)
      Akihiro Nanba, Takashi Nakae, Takahiro Ryu, Kenichiro Matsuzaki, Sofian Rosbi, YoshihiroTakikawa, Yoichi Ooi, Atsuo Sueoka
    • Journal Title

      Proc. of APVC 2015

      Volume: 1 Pages: 475-482

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Optimal Design of Dynamic Absorber for Subharmonic Nonlinear Vibration in Automatic Transmission Powertrain2015

    • Author(s)
      Takashi Nakae, Takahiro Ryu, Kenichiro Matsuzaki, Sofian Rosbi, Atsuo Sueoka, YoshihiroTakikawa, Yoichi Ooi
    • Journal Title

      Proc. of APVC 2015

      Volume: 1 Pages: 614-622

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 自動車用ATにおける分数調波振動の発生傾向に関する理論解析および基礎実験2016

    • Author(s)
      難波陽大
    • Organizer
      自動車技術会秋季大会
    • Place of Presentation
      札幌コンベンションセンター(北海道・札幌市)
    • Year and Date
      2016-10-19
    • Related Report
      2016 Research-status Report
  • [Presentation] 自動車用ATのロックアップクラッチすべり制御時における振動現象の防止対策2016

    • Author(s)
      上笹貫滉大
    • Organizer
      自動車技術会秋季大会
    • Place of Presentation
      札幌コンベンションセンター(北海道・札幌市)
    • Year and Date
      2016-10-19
    • Related Report
      2016 Research-status Report
  • [Presentation] 自動車用 AT における分数調波振動に関す る基礎実験および理論解析2016

    • Author(s)
      難波陽大
    • Organizer
      Dynamics and Design Conference
    • Place of Presentation
      山口大学(山口県・宇部市)
    • Year and Date
      2016-08-23
    • Related Report
      2016 Research-status Report
  • [Patent(Industrial Property Rights)] 振動減衰装置2015

    • Inventor(s)
      劉孝宏,中江貴志,松崎健一郎,滝川由浩ほか3名
    • Industrial Property Rights Holder
      鹿児島大学,アイシン・エィ・ダブリュ株式会社,大分大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2015-226653
    • Filing Date
      2015-11-19
    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2019-03-29  

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