The development and control of a flexible-spine for a human-form robot

Authors: Mizuuchi I.; Yoshida S.; Inaba M.; Inoue H.

Source: Advanced Robotics, Volume 17, Number 2, 2003 , pp. 179-196(18)

Publisher: VSP, an imprint of Brill

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Abstract:

In this paper, the development of a robot which has a flexible spine is presented. By embedding a multi-d.o.f. soft structure into a robot body as a spine, the robot can increase its ability to absorb shock and to work in various environment such as narrow places. As a result of these abilities, the robot can expand its opportunity to work in the human environment. Moreover, its motion could be more natural. The developed full-body human-form robot has a five-jointed flexible spine. Each joint (vertebra) has 3 d.o.f. Between each vertebrae is a 'disk' made of silicone rubber. The spine is controlled by eight tendons, whose tensions can be controlled using tension sensors and locally distributed microcontrollers. This paper describes the development of the flexible spine and the control of the posture of the spine and body.

Keywords: FLEXIBLE SPINE; WHOLE-BODY HUMAN-FORM ROBOT; TENDON-DRIVEN SYSTEM; TENSION CONTROL; FLEXIBILITY CONTROL

Document Type: Research article

DOI: 10.1163/156855303321165123

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