Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Development of a Redundant Shoulder Complex Actuated by Metal Wire Tendons

텐던 구동 기반 여유자유도를 가지는 로봇의 어깨 메커니즘 구현

  • Choi, Taeyong (Department of Robotics and Mechatronics, Korea Institute of Machinery and Materials) ;
  • Kim, Doohyung (Department of Robotics and Mechatronics, Korea Institute of Machinery and Materials) ;
  • Do, Hyunmin (Department of Robotics and Mechatronics, Korea Institute of Machinery and Materials) ;
  • Park, Chanhun (Department of Robotics and Mechatronics, Korea Institute of Machinery and Materials) ;
  • Park, Dongil (Department of Robotics and Mechatronics, Korea Institute of Machinery and Materials)
  • 최태용 (한국기계연구원 로봇메카트로닉스연구실) ;
  • 김두형 (한국기계연구원 로봇메카트로닉스연구실) ;
  • 도현민 (한국기계연구원 로봇메카트로닉스연구실) ;
  • 박찬훈 (한국기계연구원 로봇메카트로닉스연구실) ;
  • 박동일 (한국기계연구원 로봇메카트로닉스연구실)
  • Received : 2016.08.23
  • Accepted : 2016.09.14
  • Published : 2016.10.01
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Abstract

Cooperation and collaboration with robots are key functions of robotic utility that are currently developing. Thus, robots should be safe and resemble human beings to cope with these needs. In particular, dual-arm robots that mimic human kinetics are becoming the focus of recent industrial robotics research. Their size is similar to the size of a human adult; however, they lack natural, human-like motion. One of the critical reasons for this is the shoulder complex. Most recent dual-arm robots have only 2 degrees of freedoms (DOFs), which significantly limits the workspace and mobility of the shoulders and arms. Therefore, a redundant shoulder complex could be very important in new developments that enable new capabilities. However, constructing a kinematically redundant shoulder complex is difficult because of spatial constraints. Therefore, we propose a novel, redundant shoulder complex for a human-like robot that is driven by flexible wire tendons. This kinematically redundant shoulder complex allows human-like robots to move more naturally because of redundant DOFs. To control the proposed shoulder complex, a hybrid control scheme is used. The positioning precision has also been considered, and the ability of the shoulder complex to perform several human-like motions has been verified.

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References

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