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39 lines
1.2 KiB
39 lines
1.2 KiB
%SerialLink.friction Friction force
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%
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% TAU = R.friction(QD) is the vector of joint friction forces/torques for the
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% robot moving with joint velocities QD.
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%
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% The friction model includes viscous friction (linear with velocity)
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% and Coulomb friction (proportional to sign(QD)).
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%
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% See also Link.friction.
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% Ryan Steindl based on Robotics Toolbox for MATLAB (v6 and v9)
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%
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% Copyright (C) 1993-2011, by Peter I. Corke
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%
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% This file is part of The Robotics Toolbox for MATLAB (RTB).
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%
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% RTB is free software: you can redistribute it and/or modify
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% it under the terms of the GNU Lesser General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% RTB is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU Lesser General Public License for more details.
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%
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% You should have received a copy of the GNU Leser General Public License
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% along with RTB. If not, see <http://www.gnu.org/licenses/>.
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%
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% http://www.petercorke.com
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function tau = friction(robot, qd)
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L = robot.links;
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for i=1:robot.n,
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tau(i) = friction(L(i), qd(i));
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end
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