66 lines
2.0 KiB
Matlab
66 lines
2.0 KiB
Matlab
% Spindle
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% :PROPERTIES:
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% :header-args:matlab+: :tangle ../src/initializeRz.m
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% :header-args:matlab+: :comments org :mkdirp yes
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% :header-args:matlab+: :eval no :results none
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% :END:
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% <<sec:initializeRz>>
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% This Matlab function is accessible [[file:../src/initializeRz.m][here]].
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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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if opts.rigid
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rz.k.rot = 1e10; % Rotational Stiffness (Rz) [N*m/deg]
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rz.k.tilt = 1e10; % Rotational Stiffness (Rx, Ry) [N*m/deg]
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rz.k.ax = 1e12; % Axial Stiffness (Z) [N/m]
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rz.k.rad = 1e12; % Radial Stiffness (X, Y) [N/m]
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else
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rz.k.rot = 1e6; % TODO - Rotational Stiffness (Rz) [N*m/deg]
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rz.k.tilt = 1e6; % Rotational Stiffness (Rx, Ry) [N*m/deg]
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rz.k.ax = 2e9; % Axial Stiffness (Z) [N/m]
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rz.k.rad = 7e8; % Radial Stiffness (X, Y) [N/m]
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end
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% Damping
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rz.c.ax = 0.1*sqrt(rz.k.ax*rz.m);
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rz.c.rad = 0.1*sqrt(rz.k.rad*rz.m);
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rz.c.tilt = 0.1*sqrt(rz.k.tilt*rz.m);
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rz.c.rot = 0.1*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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