53 lines
1.5 KiB
Matlab
53 lines
1.5 KiB
Matlab
function [rz] = initializeRz(opts_param)
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%% Default values for opts
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opts = struct('rigid', false);
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%% Populate opts with input parameters
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if exist('opts_param','var')
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for opt = fieldnames(opts_param)'
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opts.(opt{1}) = opts_param.(opt{1});
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end
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end
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%%
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rz = struct();
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%% Spindle - Static Properties
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% Spindle - Slip Ring
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rz.slipring.density = 7800; % [kg/m3]
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rz.slipring.color = [0.792 0.820 0.933];
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rz.slipring.STEP = './STEPS/rz/Spindle_Slip_Ring.STEP';
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% Spindle - Rotor
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rz.rotor.density = 7800; % [kg/m3]
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rz.rotor.color = [0.792 0.820 0.933];
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rz.rotor.STEP = './STEPS/rz/Spindle_Rotor.STEP';
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% Spindle - Stator
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rz.stator.density = 7800; % [kg/m3]
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rz.stator.color = [0.792 0.820 0.933];
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rz.stator.STEP = './STEPS/rz/Spindle_Stator.STEP';
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% Estimated mass of the mooving part
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rz.m = 250; % [kg]
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%% Spindle - Dynamical Properties
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% Estimated stiffnesses
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rz.k.ax = 2e9; % Axial Stiffness [N/m]
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rz.k.rad = 7e8; % Radial Stiffness [N/m]
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rz.k.rot = 100e6*2*pi/360; % Rotational Stiffness [N*m/deg]
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if opts.rigid
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rz.k.tilt = 1e10; % Vertical Rotational Stiffness [N*m/deg]
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else
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rz.k.tilt = 1e2; % TODO what value should I put? [N*m/deg]
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end
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% TODO
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rz.c.ax = 2*sqrt(rz.k.ax/rz.m);
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rz.c.rad = 2*sqrt(rz.k.rad/rz.m);
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rz.c.tilt = 100*sqrt(rz.k.tilt/rz.m);
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rz.c.rot = 100*sqrt(rz.k.rot/rz.m);
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%% Save
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save('./mat/stages.mat', 'rz', '-append');
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end
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