The development of the position/torque control system using the shape-memory alloy and development of the design support tool

• Project/Area Number: 24560298
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Intelligent mechanics/Mechanical systems
• Research Institution: Oita University
• Principal Investigator: SAKUMA Toshio 大分大学, 工学部, 客員教授 (10371303)
• Co-Investigator(Kenkyū-buntansha): YAMAMOTO Takaei 大分大学, 工学部, 助教 (20295166) ; 長 弘基 北九州市立大学, 国際環境工学部, 准教授 (00435421)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 形状記憶合金 / アクチュエータ / 位置制御 / トルク制御 / 機械力学・制御 / 制御工学 / 先端機能デバイス

Outline of Final Research Achievements

We developed the phase transformation behavior prediction model for predicting macro phase transformation behavior of the polycrystal shape memory alloy without directly referring to crystal orientation, transformation plane and transformation direction. The model could calculate the various thermomechanical response of shape memory alloy including the shape memory effect. We developed the uniaxial inch worm mechanism that could largely increase control distance. The uniaxial inch worm mechanism worked well. We developed the position/torque control system of shape memory alloy actuator which feeds back the deviation between a setting resistance value and the measurement resistance value. The control system could prevent overload of the SMA.

Research Products

• [Journal Article] Transformation Behavior of Shape Memory Alloys in Multiaxial Stress State (2013)
  • Author(s): Takaei Yamamoto, Akihiko Suzuki, Hiroki Cho, Toshio Sakuma
  • Journal Title: Advances in Science and Technology Volume: 78 Pages: 46-51
  • DOI: 10.4028/www.scientific.net/ast.78.46
  • Peer Reviewed
• [Presentation] 非比例多軸負荷下における形状記憶合金の変形挙動 (2014)
  • Author(s): 山本 隆栄，佐久間 俊雄，鈴木 章彦
  • Organizer: SMAシンポジウム
  • Place of Presentation: アクロス福岡（福岡県福岡市）
  • Year and Date: 2014-11-13 – 2014-11-14
• [Presentation] Position/Torque Control of Shape Memory Alloy Actuator Based on Resistance Feedback Control Method (2014)
  • Author(s): T. Yamamoto, Y. Takeda, T. Sakuma
  • Organizer: International Conference on Martensitic Transformations 2014
  • Place of Presentation: Euskalduna Congress Palace, Bilbao, Spain
  • Year and Date: 2014-07-06 – 2014-07-11
• [Presentation] Transformation Behavior of Shape Memory Alloys in Multiaxial Stress State (2012)
  • Author(s): Takaei Yamamoto, Akihiko Suzuki, Hiroki Cho, Toshio Sakuma
  • Organizer: 4th INTERNATIONAL CONFERENCE “SMART MATERIALS, STRUCTURES AND SYSTEMS”
  • Place of Presentation: Montecatini Terme, Tuscany, Italy
• [Patent(Industrial Property Rights)] 形状記憶合金アクチュエータ制御装置 (2014)
  • Inventor(s): 山本隆栄，佐久間俊雄，竹田悠二
  • Industrial Property Rights Holder: 山本隆栄，佐久間俊雄，竹田悠二
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2014-119001
  • Filing Date: 2014-06-09