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BondGraphLib.mo
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195
BondGraphLib.mo
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package BondGraphLib
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connector BondPort "Bond graph power port"
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Real e "Effort variable";
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flow Real f "Flow variable";annotation(
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Icon(graphics = {Rectangle(lineColor = {0, 0, 127}, fillColor = {0, 0, 127},fillPattern = FillPattern.Solid, extent = {{-60, 60}, {60, -60}})}));
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end BondPort;
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model J1 "Bond graph 1-junction (common flow, efforts sum to zero)"
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parameter Integer N(min=1) = 2 "# of power ports";
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parameter Real s[N] = fill(1.0, N)
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"Bond orientation signs used in the effort balance";
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BondPort P[N] "Power ports" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {0, 80}, extent = {{-10, -10}, {10, 10}})));
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Real f;
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equation
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// Efforts sum to zero, with signs from bond directions
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sum(s[i] * P[i].e for i in 1:N) = 0;
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// Flows are all equal
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for i in 2:N loop
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P[i].f = P[i-1].f;
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end for;
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f = P[1].f;
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annotation(
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Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "1")}));
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end J1;
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model J0 "Bond graph 0-junction (common effort, flows sum to zero)"
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parameter Integer N(min=1) = 2 "# of power ports";
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parameter Real s[N] = fill(1.0, N)
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"Bond orientation signs used in the effort balance";
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BondPort P[N] "Power ports" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {0, 80}, extent = {{-10, -10}, {10, 10}})));
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Real e;
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equation
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// Flows sum to zero, with signs from bond directions
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sum(s[i] * P[i].f for i in 1:N) = 0;
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// Efforts are all equal
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for i in 2:N loop
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P[i].e = P[1].e;
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end for;
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e = P[1].e;
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annotation(
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Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "0")}));
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end J0;
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partial model OnePortPassive "One-port passive bond graph element"
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BondPort p "Generic power port" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {0, 80}, extent = {{-10, -10}, {10, 10}})));
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end OnePortPassive;
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partial model OnePortEnergetic "One-port storage element"
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extends OnePortPassive annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {0, 80}, extent = {{-10, -10}, {10, 10}})));
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Real state "Conserved quantity";
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end OnePortEnergetic;
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model C "Bond graph C element"
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extends OnePortEnergetic(state(start=q0, fixed=true));
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parameter Real c(min=0) = 1 "Capacitance";
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parameter Real q0 = 0 "Initial stored quantity (charge)";
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equation
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der(state) = p.f;
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p.e = state / c;
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annotation(
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Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "C")}));
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end C;
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model I "Bond graph I element"
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extends OnePortEnergetic(state(start=p0, fixed=true));
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parameter Real I(min=0) = 1 "Inertance / inductance / mass";
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parameter Real p0 = 0 "Initial stored quantity (momentum / flux)";
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equation
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der(state) = p.e;
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p.f = state / I;
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annotation(
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Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "I")}));
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end I;
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model R "Bond graph resistor"
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extends OnePortPassive;
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parameter Real R(min=0) = 1 "Resistance";
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equation
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p.e = R * p.f;
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annotation(
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Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "R")}));
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end R;
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model Se "Effort source"
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BondPort p annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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input Real e0 "Imposed effort";
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equation
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p.e = e0;
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annotation(
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Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "Se")}));
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end Se;
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model Sf "Flow source"
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BondPort p annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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input Real f0 "Imposed flow";
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equation
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p.f = f0;
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annotation(
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Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "Sf")}));
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end Sf;
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model TF "Bond graph transformer"
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BondPort p1 "Port 1" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
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BondPort p2 "Port 2" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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parameter Real n = 1 "Transformer ratio";
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equation
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p1.e = n * p2.e;
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p2.f = n * p1.f;
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annotation(
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Icon(graphics = {Text(extent = {{-80, 100}, {80, -100}}, textString = "TF")}));
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end TF;
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model GY "Bond graph gyrator"
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BondPort p1 "Port 1" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
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BondPort p2 "Port 2" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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parameter Real r = 1 "Gyrator modulus";
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equation
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p1.e = r * p2.f;
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p2.e = r * p1.f;
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annotation(
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Icon(graphics = {Text(extent = {{-80, 100}, {80, -100}}, textString = "GY")}));
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end GY;
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model mSe "Bond graph modulated effort source"
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BondPort p annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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Modelica.Blocks.Interfaces.RealInput e0 "Imposed effort" annotation(
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Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));
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equation
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p.e = e0;
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annotation(
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Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "mSe")}));
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end mSe;
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model mSf "Bond graph modulated flow source"
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BondPort p annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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Modelica.Blocks.Interfaces.RealInput f0 "Imposed flow" annotation(
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Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));
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equation
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p.f = f0;
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annotation(
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Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "mSf")}));
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end mSf;
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model mTF "Bond graph modulated transformer"
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BondPort p1 "Port 1" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
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BondPort p2 "Port 2" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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Modelica.Blocks.Interfaces.RealInput m "Modulation" annotation(
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Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));
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equation
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p1.e = m * p2.e;
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p2.f = m * p1.f;
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annotation(
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Diagram(graphics),
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Icon(graphics = {Text(extent = {{-60, 100}, {60, -100}}, textString = "mTF")}));
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end mTF;
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model mGY "Bond graph modulated gyrator"
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BondPort p1 "Port 1" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
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BondPort p2 "Port 2" annotation(
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Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
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Modelica.Blocks.Interfaces.RealInput m "Modulation" annotation(
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Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));
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equation
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p1.e = m * p2.f;
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p2.e = m * p1.f;
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annotation(
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Diagram(graphics),
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Icon(graphics = {Text(extent = {{-60, 100}, {60, -100}}, textString = "mGY")}));
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end mGY;
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annotation(
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Icon(graphics = {Text(origin = {50, 0}, extent = {{-50, 100}, {50, -100}}, textString = "R"), Line(origin = {-45.22, 20.19}, points = {{-58.7774, -20.1934}, {21.2226, -20.1934}, {-38.7774, 19.8066}}, thickness = 5), Line(origin = {-9.81, -8.19}, points = {{-10.1934, 48.1934}, {-10.1934, -31.8066}}, thickness = 5)}),
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uses(Modelica(version = "4.1.0")));
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end BondGraphLib;
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