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Development of Multi-Body Dynamics Simulator for Bio-Mimetic Motion in Lizard Robot Design

도마뱀 로봇 설계를 위한 생체운동 모사 다물체 동역학 시뮬레이터 개발

  • Park, Yong-Ik (Dept. of Mechatronics Engineering, Chungnam Nat'l Univ.,) ;
  • Seo, Bong Cheol (Dept. of Mechatronics Engineering, Chungnam Nat'l Univ.,) ;
  • Kim, Sung-Soo (Dept. of Mechatronics Engineering, Chungnam Nat'l Univ.,) ;
  • Shin, Hocheol (Robot Technology Team, Korea Atomic Energy Research Institute)
  • 박용익 (충남대학교 메카트로닉스공학과) ;
  • 서봉철 (충남대학교 메카트로닉스공학과) ;
  • 김성수 (충남대학교 메카트로닉스공학과) ;
  • 신호철 (한국원자력연구원)
  • Received : 2013.04.26
  • Accepted : 2014.04.10
  • Published : 2014.06.01

Abstract

In this study, a multibody simulator was developed to analyze the bio-mimetic motion of a lizard robot design. A RecurDyn multibody dynamics model of a lizard was created using a micro-computerized tomography scan and motion capture data. The bio-mimetic motion simulator consisted of a trajectory generator, an inverse kinematics module, and an inverse dynamics module, which were used for various walking motion analyses of the developed lizard model. The trajectory generation module produces spinal movements and gait trajectories based on the lizard's speed. Using the joint angle history from an inverse kinematic analysis, an inverse dynamic analysis can be carried out, and the required joint torques can be obtained for the lizard robot design. In order to investigate the effectiveness of the developed simulator, the required joint torques of the model were calculated using the simulator.

Acknowledgement

Supported by : 원자력연구원

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