Presentation 1995/12/9
Control System of an Autonomous Jaw-Movement Simulator, JSN/1C, Capable of Performing Open-Close Movement : Improvement of the Muscular Control Scheme
Okazumi TAMURA, Toyohiko HAYASHI, Shin-ichi NAKAJIMA, Hiroshi KOBAYASHI, Yoshiaki YAMADA, Kiyoshi ISHIOKA, Michio MIYAKAWA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to clarify the control mechanism of jaw movements, we have been developing an autonomous jaw-robot with a life-like structure and occlusal-force sensors, which is driven by masseter and lateral pterygoid actuators, all materialized by a cable-tendon DC-servo motor. To control these, we introduced an impedance-control scheme and an adaptive control mechanism, enabling it to perform a life-like open-close movement with clenching. This control scheme, however, employs a complete position-control in the isotonic phase for any actuator, which is incomprehensible in actual muscles. To improve this, we varied the amount of cable-length feedback, according to differences in muscles and movement phases, so as to simulate the activity of the stretch reflex more accurately. This modification and the addition of bilateral digastric actuators enabled the robot to perform a more natural open-close movement.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) autonomous jaw-movement robot / digastric actuator / impedance control / adaptive control / stretch reflex-jaw / open-close movement
Paper # MBE95-119
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Conference Information
Committee MBE
Conference Date 1995/12/9(1days)
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Paper Information
Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Control System of an Autonomous Jaw-Movement Simulator, JSN/1C, Capable of Performing Open-Close Movement : Improvement of the Muscular Control Scheme
Sub Title (in English)
Keyword(1) autonomous jaw-movement robot
Keyword(2) digastric actuator
Keyword(3) impedance control
Keyword(4) adaptive control
Keyword(5) stretch reflex-jaw
Keyword(6) open-close movement
1st Author's Name Okazumi TAMURA
1st Author's Affiliation Graduate School of Engineering, Niigata University()
2nd Author's Name Toyohiko HAYASHI
2nd Author's Affiliation Graduate School of Science and Technology, Niigata University
3rd Author's Name Shin-ichi NAKAJIMA
3rd Author's Affiliation Department of Mechanical and Control Engineering, Niigata Institute of Technology
4th Author's Name Hiroshi KOBAYASHI
4th Author's Affiliation First Department of Prosthetic Dentistry, School of Dentistry, Niigata University
5th Author's Name Yoshiaki YAMADA
5th Author's Affiliation Department of Oral Physiology, School of Dentistry, Niigata University
6th Author's Name Kiyoshi ISHIOKA
6th Author's Affiliation Professor Emeritus, Niigata University
7th Author's Name Michio MIYAKAWA
7th Author's Affiliation Department or Information Engineering, Faculty of Engineering, Niigata University
Date 1995/12/9
Paper # MBE95-119
Volume (vol) vol.95
Number (no) 404
Page pp.pp.-
#Pages 8
Date of Issue