function [stewart] = initializeAmplifiedStrutDynamics(stewart, args) % initializeAmplifiedStrutDynamics - Add Stiffness and Damping properties of each strut % % Syntax: [stewart] = initializeAmplifiedStrutDynamics(args) % % Inputs: % - args - Structure with the following fields: % - Ka [6x1] - Vertical stiffness contribution of the piezoelectric stack [N/m] % - Ca [6x1] - Vertical damping contribution of the piezoelectric stack [N/(m/s)] % - Kr [6x1] - Vertical (residual) stiffness when the piezoelectric stack is removed [N/m] % - Cr [6x1] - Vertical (residual) damping when the piezoelectric stack is removed [N/(m/s)] % % Outputs: % - stewart - updated Stewart structure with the added fields: % - actuators.type = 2 % - actuators.K [6x1] - Total Stiffness of each strut [N/m] % - actuators.C [6x1] - Total Damping of each strut [N/(m/s)] % - actuators.Ka [6x1] - Vertical stiffness contribution of the piezoelectric stack [N/m] % - actuators.Ca [6x1] - Vertical damping contribution of the piezoelectric stack [N/(m/s)] % - actuators.Kr [6x1] - Vertical stiffness when the piezoelectric stack is removed [N/m] % - actuators.Cr [6x1] - Vertical damping when the piezoelectric stack is removed [N/(m/s)] arguments stewart args.Kr (6,1) double {mustBeNumeric, mustBeNonnegative} = 5e6*ones(6,1) args.Cr (6,1) double {mustBeNumeric, mustBeNonnegative} = 1e1*ones(6,1) args.Ka (6,1) double {mustBeNumeric, mustBeNonnegative} = 15e6*ones(6,1) args.Ca (6,1) double {mustBeNumeric, mustBeNonnegative} = 1e1*ones(6,1) end K = args.Ka + args.Kr; C = args.Ca + args.Cr; stewart.actuators.type = 2; stewart.actuators.Ka = args.Ka; stewart.actuators.Ca = args.Ca; stewart.actuators.Kr = args.Kr; stewart.actuators.Cr = args.Cr; stewart.actuators.K = K; stewart.actuators.C = C;