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more samples for Modelica language,

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see issue #2486
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thorade
2015-07-07 12:40:37 +02:00
parent 21e97cc65c
commit 58fd8a5d87
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samples/Modelica/SecondOrderSystem.mo Normal file
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within ModelicaByExample.PackageExamples;
model SecondOrderSystem
"A second order rotational system importing types from Modelica Standard Library"
import Modelica.SIunits.*;
parameter Angle phi1_init = 0;
parameter Angle phi2_init = 1;
parameter AngularVelocity omega1_init = 0;
parameter AngularVelocity omega2_init = 0;
parameter Inertia J1=0.4;
parameter Inertia J2=1.0;
parameter RotationalSpringConstant k1=11;
parameter RotationalSpringConstant k2=5;
parameter RotationalDampingConstant d1=0.2;
parameter RotationalDampingConstant d2=1.0;
Angle phi1;
Angle phi2;
AngularVelocity omega1;
AngularVelocity omega2;
initial equation
phi1 = phi1_init;
phi2 = phi2_init;
omega1 = omega1_init;
omega2 = omega2_init;
equation
omega1 = der(phi1);
omega2 = der(phi2);
J1*der(omega1) = k1*(phi2-phi1)+d1*der(phi2-phi1);
J2*der(omega2) = k1*(phi1-phi2)+d1*der(phi1-phi2)-k2*phi2-d2*der(phi2);
end SecondOrderSystem;