%% Clear Workspace and Close figures clear; close all; clc; %% Intialize Laplace variable s = zpk('s'); %% Path for functions, data and scripts addpath('./mat/'); % Path for data addpath('./src/'); % Path for functions %% Colors for the figures colors = colororder; % Without Encoder % When the encoder is not fixed to the strut, the obtained FRF are shown in Figure ref:fig:test_struts_spur_res_frf. %% Load Data (without the encoder) bending_X = load('strut_spur_res_x_bending.mat'); bending_Y = load('strut_spur_res_y_bending.mat'); torsion_Z = load('strut_spur_res_z_torsion.mat'); %% Plot the responses (without the encoder) figure; hold on; plot(bending_X.FFT1_AvSpc_1_RMS_X_Val, bending_X.FFT1_AvSpc_1_RMS_Y_Val, ... 'DisplayName', 'X-Bending') plot(bending_Y.FFT1_AvSpc_1_RMS_X_Val, bending_Y.FFT1_AvSpc_1_RMS_Y_Val, ... 'DisplayName', 'Y-Bending') plot(torsion_Z.FFT1_AvSpc_1_RMS_X_Val, torsion_Z.FFT1_AvSpc_1_RMS_Y_Val, ... 'DisplayName', 'Z-torsion'); text(226, 1.5e-4,{'226Hz'}, 'VerticalAlignment', 'bottom','HorizontalAlignment','center') text(337, 6e-5,{'337Hz'}, 'VerticalAlignment', 'bottom','HorizontalAlignment','center') text(398, 1.5e-4,{'398Hz'}, 'VerticalAlignment', 'bottom','HorizontalAlignment','center') hold off; set(gca, 'Xscale', 'log'); set(gca, 'Yscale', 'log'); xlabel('Frequency [Hz]'); ylabel('Amplitude'); xlim([50, 8e2]); ylim([5e-7, 3e-4]) legend('location', 'northwest'); % With Encoder % Then, one encoder is fixed to the strut and the FRF are measured again and shown in Figure ref:fig:test_struts_spur_res_frf_enc. %% Load Data (with the encoder) bending_X_enc = load('strut_spur_res_x_bending_enc.mat'); bending_Y_enc = load('strut_spur_res_y_bending_enc.mat'); torsion_Z_enc = load('strut_spur_res_z_torsion_enc.mat'); %% Plot the responses (with the encoder) figure; hold on; plot(bending_X_enc.FFT1_AvSpc_1_RMS_X_Val, bending_X_enc.FFT1_AvSpc_1_RMS_Y_Val, ... 'DisplayName', 'X-Bending') plot(bending_Y_enc.FFT1_AvSpc_1_RMS_X_Val, bending_Y_enc.FFT1_AvSpc_1_RMS_Y_Val, ... 'DisplayName', 'Y-Bending') plot(torsion_Z_enc.FFT1_AvSpc_1_RMS_X_Val, torsion_Z_enc.FFT1_AvSpc_1_RMS_Y_Val, ... 'DisplayName', 'Z-torsion'); text(198, 4e-5,{'198Hz'}, 'VerticalAlignment', 'bottom','HorizontalAlignment','center') text(293, 6e-5,{'293Hz'}, 'VerticalAlignment', 'bottom','HorizontalAlignment','center') text(381, 1e-4,{'381Hz'}, 'VerticalAlignment', 'bottom','HorizontalAlignment','center') hold off; set(gca, 'Xscale', 'log'); set(gca, 'Yscale', 'log'); xlabel('Frequency [Hz]'); ylabel('Amplitude'); xlim([50, 8e2]); ylim([5e-7, 2e-4]) legend('location', 'northwest');