Presentation 2011-12-20
Flexible physical interaction based on control of the stiffness ellipse at the end effector by a musculoskeletal robotic arm : An application of an electromagnetic linear actuator
Yoshihiro NAKATA, Atsuhiro IDE, Yutaka NAKAMURA, Katsuhiro HIRATA, Hiroshi ISHIGURO,
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Abstract(in English) Development of mechanisms for robots in daily life to realize safe human-robot interaction is important issue of robotics. Humans have two important mechanisms to move in various environments while coping with unexpected disturbances. One is the compliance of muscles, and the other is the biarticular muscle. The compliance of muscles enables humans to respond to external forces flexibly. The biarticular muscle is a muscle which actuates two adjacent joints at the same time, modifying the effect of external forces on the whole body by changing its stiffness. These mechanisms seem to be necessary to realize human like flexible motion. In this research, electromagnetic linear actuators are used as artificial muscles, because it is easy to implement multi-articular muscles and they can change the impedance characteristics by controlling their output force. We show the effect of biarticular muscles for the controlling of the stiffness ellipse at the end effector and develop a robotic arm with 3 actuators. The robot can change the stiffness ellipse by controlling the stiffness coefficient of each actuator and perform reaching tasks.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Biarticular muscle / Electromagnetic linear actuator / Human-robot interaction / Robotic arm / Stiffness ellipse
Paper # NC2011-96
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Committee NC
Conference Date 2011/12/13(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Flexible physical interaction based on control of the stiffness ellipse at the end effector by a musculoskeletal robotic arm : An application of an electromagnetic linear actuator
Sub Title (in English)
Keyword(1) Biarticular muscle
Keyword(2) Electromagnetic linear actuator
Keyword(3) Human-robot interaction
Keyword(4) Robotic arm
Keyword(5) Stiffness ellipse
1st Author's Name Yoshihiro NAKATA
1st Author's Affiliation Graduate School of Engineering Science, Osaka University()
2nd Author's Name Atsuhiro IDE
2nd Author's Affiliation Graduate School of Engineering Science, Osaka University
3rd Author's Name Yutaka NAKAMURA
3rd Author's Affiliation Graduate School of Engineering Science, Osaka University
4th Author's Name Katsuhiro HIRATA
4th Author's Affiliation Graduate School of Engineering, Osaka University
5th Author's Name Hiroshi ISHIGURO
5th Author's Affiliation Graduate School of Engineering Science, Osaka University
Date 2011-12-20
Paper # NC2011-96
Volume (vol) vol.111
Number (no) 368
Page pp.pp.-
#Pages 6
Date of Issue