JRM Vol.18 No.5 pp. 608-617
doi: 10.20965/jrm.2006.p0608


Impedance Control of Free-Flying Space Robot for Orbital Servicing

Hiroki Nakanishi and Kazuya Yoshida

Department of Aerospace Engineering, Graduate School of Engineering, Tohoku University, 6-6-01 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan

December 28, 2005
February 17, 2006
October 20, 2006
impedance control, free-flying robot, orbital servicing, satellite capture, contact force
One of the most important phases of orbital servicing by a space robot is capturing a target satellite. In this phase, there is the risk that contact will push the target and robot away from each other. Controlling the impedance of the manipulator effectively prevents this. For a free-flying space robot, however, conventional methods used for fixed base robots cannot be used because the motion of the base interferes with the manipulator motion. An impedance control method for a space manipulator arm is proposed, where the end tip of the manipulator is controlled as if a mass-damper-spring system fixed in inertial space. Possible applications in orbital servicing are also discussed.
Cite this article as:
H. Nakanishi and K. Yoshida, “Impedance Control of Free-Flying Space Robot for Orbital Servicing,” J. Robot. Mechatron., Vol.18 No.5, pp. 608-617, 2006.
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