Title :
Control Method for a 3D Form Display with Coil-type Shape Memory Alloy
Author :
Nakatani, Masashi ; Kajimoto, Hiroyuki ; Vlack, Kevin ; Sekiguchi, Dairoku ; Kawakami, Naoki ; Tachi, Susumu
Author_Institution :
Graduate School of Information Science and Technology, The University of Tokyo Hongo 7-3-1, Bunkyo-ku, Tokyo, Japan nakatani@star.t.u-tokyo.ac.jp
Abstract :
We previously proposed a new 3D form display actuated by shape memory alloy (SMA), which is capable of displaying large scale objects sequentially. Based on our devised method, our display uses a 16×16 array of pin-rods with 30mm stroke at 5mm intervals. In this paper, we discuss the control method of the shape memory alloy with a simple matrix drive circuit. This type of drive circuit can dramatically reduce the number of switch. In addition, we propose a novel approach using linear programming, where the simulated time to display a whole shape is reduced by about 50% or more with a large number of actuators.
Keywords :
3D Form Display; Shape Memory Alloy; Simple Matrix Drive Circuit; Visual Tactile Display; linear programming; Circuit simulation; Drives; Hydraulic actuators; Large-scale systems; Linear programming; Shape control; Shape memory alloys; Switches; Switching circuits; Three dimensional displays; 3D Form Display; Shape Memory Alloy; Simple Matrix Drive Circuit; Visual Tactile Display; linear programming;
Conference_Titel :
Robotics and Automation, 2005. ICRA 2005. Proceedings of the 2005 IEEE International Conference on
Print_ISBN :
0-7803-8914-X
DOI :
10.1109/ROBOT.2005.1570300
