function [ry] = initializeRy()
    %%
    load('./mat/smiData.mat', 'smiData');

    %%
    ry = struct();

    ry.m = smiData.Solid(26).mass+smiData.Solid(18).mass+smiData.Solid(10).mass;

    ry.k.h    = 357e6/4; % Stiffness in the direction of the guidance [N/m]
    ry.k.rad  = 555e6/4; % Stiffness in the top direction [N/m]
    ry.k.rrad = 238e6/4; % Stiffness in the side direction [N/m]
    ry.k.tilt = 1e4 ;    % Rotation stiffness around y [N*m/deg]

    ry.c.h   = ry.k.h/1000;
    ry.c.rad  = ry.k.rad/1000;
    ry.c.rrad = ry.k.rrad/1000;
    ry.c.tilt  = ry.k.tilt/1000;

    %% Save if no output argument
    if nargout == 0
        save('./mat/ry.mat', 'ry');
    end
end