Study on Analysis of Displacement-amplified Electromagnetic Actuator and Its Control System

• Project/Area Number: 16K18001
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Nabae Hiroyuki 東京工業大学, 工学院, 助教 (90757171)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: アクチュエータ / 電磁力 / 変位拡大 / 駆動時間 / 電磁吸引力 / 変位拡大機構 / 電磁アクチュエータ

Outline of Final Research Achievements

A displacement-amplified electromagnetic actuator was studied by focusing on actuation time for a simply full-stroke drive. The attempt revealed that the amplification contributes to a decrease in the actuation time of actuators using electromagnetic attractive force in some cases. Moreover, an inchworm mechanism using displacement-amplified electromagnetic actuators was studied as an application of displacement-amplified electromagnetic actuators including a control system. An experiment was conducted to show the applicability of this prototype to a rail that waves at the micrometer scale because the actuator allows shear deformation owing to the air gap. The experimental results implied that the flexibility of the actuator is useful for the motion of inchworm mechanisms on waving rails.

Academic Significance and Societal Importance of the Research Achievements

本アクチュエータの応用先は，一般に広く普及している製品の製造やこれからの発展が期待される技術に関わるものであり，このようなフィールドにおいて，従来の周辺機器や構造に対して容易に代用可能な優れたアクチュエータの出現は，世の中に，広くインパクトを与える大きなイノベーションもたらすことが期待できる．また，”電磁吸引力+変位拡大”という系の物理特性の解明は，機械力学や物理学といった基礎科学的見地からも有用な知見であると考える．

Research Products

• [Journal Article] Preliminary study on inchworm mechanism using displacement-amplified electromagnetic actuators (2019)
  • Author(s): Hiroyuki Nabae
  • Journal Title: International Journal of Applied Electromagnetics and Mechanics Volume: 59 Issue: 2 Pages: 505-511
  • DOI: 10.3233/jae-171026
  • Peer Reviewed
• [Presentation] Simulation Approach to Effect of Elasticity on Actuation Time of Displacement-amplified Electromagnetic Actuator (2018)
  • Author(s): Hiroyuki Nabae
  • Organizer: The 18th International Conference on Mechatronics
  • Int'l Joint Research
• [Presentation] Analytical and Experimental Study on Actuation Time of a Displacement Amplified Electromagnetic Actuator (2017)
  • Author(s): Hiroyuki Nabae
  • Organizer: IEEE International Conference on Advanced Intelligent Mechatronics
  • Place of Presentation: Munich, Germany
  • Year and Date: 2017-07-03
  • Int'l Joint Research
• [Presentation] 電磁吸引力を用いたアクチュエータにおける変位拡大率と 動作時間の関係の実験的検証 (2017)
  • Author(s): 難波江裕之
  • Organizer: ロボティクス・メカトロニクス講演会2017
  • Place of Presentation: ビックパレットふくしま
  • Year and Date: 2017-05-11
• [Presentation] Analytical and Experimental Study on Actuation Time of a Displacement Amplified Electromagnetic Actuator (2017)
  • Author(s): Hiroyuki Nabae
  • Organizer: IEEE International Conference on Advanced Intelligent Mechatronics
  • Int'l Joint Research
• [Presentation] Preliminary Study on Inchworm Mechanism Using Displacement-Amplified Electromagnetic Actuators (2017)
  • Author(s): Hiroyuki Nabae
  • Organizer: the 18th International Symposium on Applied Electromagnetics and Mechanics
  • Int'l Joint Research