%% Nass height stewart = struct(); stewart.h = 90; %mm stewart.jacobian = 174.5; %mm %% Bottom Plate BP = struct(); BP.rad.int = 0; %mm BP.rad.ext = 150; %mm BP.thickness = 10; % mm BP.leg.rad = 100; %mm BP.leg.ang = 5; %deg BP.density = 8000; %kg/m^3 BP.color = [0.5 0.5 0.5]; %rgb %% TOP Plate TP = struct(); TP.rad.int = 0;%mm TP.rad.ext = 100; %mm TP.thickness = 10; % mm TP.leg.rad = 90; %mm TP.leg.ang = 5; %deg TP.density = 8000; %kg/m^3 TP.color = [0.5 0.5 0.5]; %rgb %% Leg Leg = struct(); Leg.stroke = 80e-6; % m Leg.rad.bottom = 8; %mm Leg.rad.top = 5; %mm Leg.sphere.bottom = 10; % mm Leg.sphere.top = 8; % mm Leg.density = 8000; %kg/m^3 Leg.lenght = stewart.h; % mm (approximate) Leg.m = Leg.density*2*pi*((Leg.rad.bottom*1e-3)^2)*(Leg.lenght*1e-3); %kg Leg.color.bottom = [0.5 0.5 0.5]; %rgb Leg.color.top = [0.5 0.5 0.5]; %rgb Leg.k.ax = 5e7; % N/m Leg.ksi.ax = 10; Leg = updateDamping(Leg); %% Sphere SP = struct(); SP.thickness.bottom = 1; %mm SP.thickness.top = 1; %mm SP.rad.bottom = Leg.sphere.bottom; %mm SP.rad.top = Leg.sphere.top; %mm SP.height.bottom = 5; %mm SP.height.top = 5; %mm SP.density.bottom = 8000; %kg/m^3 SP.density.top = 8000; %kg/m^3 SP.m = SP.density.bottom*2*pi*((SP.rad.bottom*1e-3)^2)*(SP.height.bottom*1e-3); %kg SP.color.bottom = [0.5 0.5 0.5]; %rgb SP.color.top = [0.5 0.5 0.5]; %rgb SP.k.ax = 0; % N*m/deg SP.ksi.ax = 10; SP = updateDamping(SP); %% function element = updateDamping(element) field = fieldnames(element.k); for i = 1:length(field) element.c.(field{i}) = 1/element.ksi.(field{i})*sqrt(element.k.(field{i})/element.m); end end