add model to study lungs compliance

models/simulation/lungs_compliance/run.m

@@ -0,0 +1,55 @@
+function run
+
+lungs{1} = struct('Em',60,'E',2.6,'Rm',0.9,'R0',0.4,...
+                  'Kv',-0.45,'Kf',0.01,...
+                  'Vdot_max',50,'Vdot_min',-30,...
+                  'type','Respiratory System High Compliance');
+
+lungs{2} = struct('Em',60,'E',5.9,'Rm',0.4,'R0',0.3,...
+                  'Kv',-0.35,'Kf',0.4,...
+                  'Vdot_max',50,'Vdot_min',-50,...
+                  'type','Respiratory System Mid Compliance');
+
+lungs{3} = struct('Em',60,'E',9.1,'Rm',0.85,'R0',0.1,...
+                  'Kv',-0.6,'Kf',0.8,...
+                  'Vdot_max',50,'Vdot_min',-70,...
+                  'type','Respiratory System Low Compliance');
+
+model_name = 'lungs_compliance';
+load_system(model_name);
+simin = Simulink.SimulationInput(model_name);
+tstop = str2double(get_param(model_name, 'StopTime'));
+mdlws = get_param(model_name, 'ModelWorkspace');
+
+figure('color', 'white');
+tiledlayout(2,3);             
+for i=1:3
+    assignin(mdlws, 'Em', lungs{i}.Em);
+    assignin(mdlws, 'E',  lungs{i}.E);
+    assignin(mdlws, 'Rm', lungs{i}.Rm);
+    assignin(mdlws, 'R0', lungs{i}.R0);
+    assignin(mdlws, 'Kv', lungs{i}.Kv);
+    assignin(mdlws, 'Kf', lungs{i}.Kf);
+    assignin(mdlws, 'Vdot_max', lungs{i}.Vdot_max);
+    assignin(mdlws, 'Vdot_min', lungs{i}.Vdot_min);
+    simout = sim(simin);
+
+    nexttile(i);
+    plot(simout.yout.time, simout.yout.signals(1).values, 'linewidth', 2);
+    xlim([0 tstop]); xlabel('time [s]');
+    ylim([-70 60]);
+    grid('on'); grid('minor');
+    title(lungs{i}.type);
+    if i == 1 
+        ylabel('Flow rate [lpm]');
+    end
+
+    nexttile(i+3);
+    plot(simout.yout.time, simout.yout.signals(2).values, 'linewidth', 2);
+    xlim([0 tstop]); xlabel('time [s]');
+    ylim([0 100]);
+    grid('on'); grid('minor');
+    if i == 1  
+        ylabel('Pressure [cmH2O]');
+    end
+end