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JRM Vol.7 No.6 pp. 436-442
doi: 10.20965/jrm.1995.p0436
(1995)

Paper:

Hybrid-Type Position and Force Control of Robot Manipulator Using Artificial Rubber Muscle

Toshiro Noritsugu*, Fuminori Ando**, Shujiro Dohta***
and Takashi Yamanaka****

*Faculty of Engineering, Okayama University, 3-1-1, Tsushimanaka, Okayama, 700 Japan

**Kawasaki Heavy Industries, Ltd., 3-1-l, Higashikawasaki-cho, Chuo-ku, Kobe, 650-91 Japan

***Faculty of Engineering, Okayama University of Science, 1-1, Ridai-cho, Okayama, 700 Japan

****Bridgestone Corporation, 3-1-1, Ogawahigashi-cho, Kodaira, Tokyo, 187 Japan

Received:
September 22, 1995
Accepted:
October 5, 1995
Published:
December 20, 1995
Keywords:
Mechatronics and Robotics, Manipulator, Artifical rubber muscle, Hybrid-type position and Force control
Abstract

An artificial rubber muscle has attracted much attention because of its light weight and mechanical flexibility. Thus, it is anticipated that it may be applied to a robot which can operate gently against or with humans. However, there are only few reports on multi-d.o.f. manipulators using this actuator. In this study, a hybrid-type position and force control is carried out by using a 2 d.o.f. manipulator comprising this manipulator, and its fundamental control performance is investigated. This actuator has a nonlinear characteristic in terms of structure and air compressibility, which makes accurate position control difficult. To cope with such a problem, a position controller using a two d.o.f. PID controller is realized by adding a feedforward compensator. As a result, a satisfactory position-tracking control performance can be obtained. Also, hybrid-type control of force control and tracking speed can be accomplished with sufficient accuracy.

Cite this article as:
Toshiro Noritsugu, Fuminori Ando, and Shujiro Dohta
and Takashi Yamanaka, “Hybrid-Type Position and Force Control of Robot Manipulator Using Artificial Rubber Muscle,” J. Robot. Mechatron., Vol.7, No.6, pp. 436-442, 1995.
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