Virtual quadruped: mechanical design, control, simulation, and experimentation
Fundamentalʹnaâ i prikladnaâ matematika, Tome 11 (2005) no. 8, pp. 5-28
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We consider a prototyped walking robot containing a platform and two double-link legs. Thus, it is a five-link mechanism. The front leg models identical motions of two quadruped's front legs, the back leg models identical motions of two quadruped's back legs. The legs have passive (uncontrolled) feet that extend in the frontal plane. Due to this the robot is stable in the frontal plane. This robot can be viewed as a “virtual” quadruped. Four DC motors drive the mechanism. Its control system comprises a computer, hardware servo-systems, and power amplifiers. The locomotion of the prototype is planar curvet gait. In the double support our prototype is statically stable and over actuated. In the single support it is unstable and under actuated system. There is no flight phase. We describe here the scheme of the mechanism, the characteristics of the drives and the control strategy. The dynamic model of the planar walking is recalled for the double and single support phases and for the impact instant. The experiments give results that are close to those of the simulation.
@article{FPM_2005_11_8_a1,
author = {Y. Aoustin and A. M. Formal'sky and C. Chevallereau},
title = {Virtual quadruped: mechanical design, control, simulation, and experimentation},
journal = {Fundamentalʹna\^a i prikladna\^a matematika},
pages = {5--28},
publisher = {mathdoc},
volume = {11},
number = {8},
year = {2005},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/FPM_2005_11_8_a1/}
}
TY - JOUR AU - Y. Aoustin AU - A. M. Formal'sky AU - C. Chevallereau TI - Virtual quadruped: mechanical design, control, simulation, and experimentation JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2005 SP - 5 EP - 28 VL - 11 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2005_11_8_a1/ LA - ru ID - FPM_2005_11_8_a1 ER -
%0 Journal Article %A Y. Aoustin %A A. M. Formal'sky %A C. Chevallereau %T Virtual quadruped: mechanical design, control, simulation, and experimentation %J Fundamentalʹnaâ i prikladnaâ matematika %D 2005 %P 5-28 %V 11 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2005_11_8_a1/ %G ru %F FPM_2005_11_8_a1
Y. Aoustin; A. M. Formal'sky; C. Chevallereau. Virtual quadruped: mechanical design, control, simulation, and experimentation. Fundamentalʹnaâ i prikladnaâ matematika, Tome 11 (2005) no. 8, pp. 5-28. http://geodesic.mathdoc.fr/item/FPM_2005_11_8_a1/