Micro Self-reconfigurable Modular Robot Using Shape Memory Alloy

This paper presents a micro-sized self-reconfigurable modular robotic system using shape memory alloy (SMA) actuators. Composed of identical robotic modules, the system can actively configure various structures. The motion of module is based on two-dimensional rotation by using an actuator mechanism with two SMA torsion coil springs. The micro-sized module measures 2cm cube and weighs 15g, half the size of the previous model developed so far. The feasibility of reconfiguration was demonstrated using the micro-sized robotic modules. We also show an extended three-dimensional (3D) model and discuss a distributed self-reconfiguration algorithm for large-scale modular structures.

[1]  Eiichi Yoshida,et al.  A 3-D self-reconfigurable structure and experiments , 1998, Proceedings. 1998 IEEE/RSJ International Conference on Intelligent Robots and Systems. Innovations in Theory, Practice and Applications (Cat. No.98CH36190).

[2]  Paul S. Schenker,et al.  Sensor Fusion and Decentralized Control in Robotic Systems , 1999 .

[3]  Wei-Min Shen,et al.  Robot modularity for self-reconfiguration , 1999, Optics East.

[4]  Koji Ikuta,et al.  Micro/miniature shape memory alloy actuator , 1990, Proceedings., IEEE International Conference on Robotics and Automation.

[5]  Arthur C. Sanderson,et al.  Tetrobot: A Modular Approach to Reconfigurable Parallel Robotics , 1997 .

[6]  Eiichi Yoshida,et al.  A 3-D self-reconfigurable structure , 1998, Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146).

[7]  Craig D. McGray,et al.  The self-reconfiguring robotic molecule , 1998, Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146).

[8]  Eiichi Yoshida,et al.  A distributed reconfiguration method for 3D homogeneous structure , 1998, Proceedings. 1998 IEEE/RSJ International Conference on Intelligent Robots and Systems. Innovations in Theory, Practice and Applications (Cat. No.98CH36190).

[9]  G. Chirikjian,et al.  Evaluating efficiency of self-reconfiguration in a class of modular robots , 1996 .

[10]  Arancha Casal,et al.  Self-reconfiguration planning for a class of modular robots , 1999, Optics East.

[11]  Eiichi Yoshida,et al.  Self-assembly and self-repair method for a distributed mechanical system , 1999, IEEE Trans. Robotics Autom..

[12]  Craig D. McGray,et al.  Self-reconfigurable molecule robots as 3D metamorphic robots , 1998, Proceedings. 1998 IEEE/RSJ International Conference on Intelligent Robots and Systems. Innovations in Theory, Practice and Applications (Cat. No.98CH36190).

[13]  H. Kurokawa,et al.  Self-assembling machine , 1994, Proceedings of the 1994 IEEE International Conference on Robotics and Automation.

[14]  Mark Yim,et al.  New locomotion gaits , 1994, Proceedings of the 1994 IEEE International Conference on Robotics and Automation.

[15]  Eiichi Yoshida,et al.  Miniaturization of Self-Reconfigurable Robotic System using Shape Memory Alloy Actuators , 2000, J. Robotics Mechatronics.

[16]  Han Kiliccote,et al.  I(CES)-cubes: a modular self-reconfigurable bipartite robotic system , 1999, Optics East.