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20 lines
838 B
Plaintext
20 lines
838 B
Plaintext
within ModelicaByExample.Subsystems.Pendula;
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model System "A system of pendula"
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import Modelica.Constants.g_n;
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import Modelica.Constants.pi;
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parameter Integer n=15 "Number of pendula";
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parameter Modelica.SIunits.Position x[n] = linspace(0,(n-1)*0.05,n);
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parameter Modelica.SIunits.Time T = 54;
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parameter Modelica.SIunits.Time X = 30;
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parameter Modelica.SIunits.Length lengths[n] = { g_n*(T/(2*pi*(X+(n-i))))^2 for i in 1:n};
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parameter Modelica.SIunits.Angle phi0 = 0.5;
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Pendulum pendulum[n](x=x, each m=1, each phi=phi0, L=lengths)
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annotation (Placement(transformation(extent={{-10,-10},{10,10}})));
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inner Modelica.Mechanics.MultiBody.World world
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annotation (Placement(transformation(extent={{-80,-60},{-60,-40}})));
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annotation (experiment(StopTime=54,
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Interval=9e-3, Tolerance=1e-008));
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end System;
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