Damper
model Damper "Linear 1D translational damper"
extends Translational.Interfaces.PartialCompliantWithRelativeStates;
parameter SI.TranslationalDampingConstant d(final min = 0, start = 0) "Damping constant";
extends Modelica.Thermal.HeatTransfer.Interfaces.PartialElementaryConditionalHeatPortWithoutT;
equation
f = d * v_rel;
lossPower = f * v_rel;
annotation (
Documentation(info = "<html>\n<p>\n<em>Linear, velocity dependent damper</em> element. It can be either connected\nbetween a sliding mass and the housing (model Fixed), or\nbetween two sliding masses.\n</p>\n\n</html>"),
Icon(
coordinateSystem(
preserveAspectRatio = true,
extent = {
{-100, -100},
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graphics = {
Line(
points = {
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color = {0, 127, 0}),
Line(points = {
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Rectangle(
extent = {
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fillColor = {192, 192, 192},
fillPattern = FillPattern.Solid,
lineColor = {0, 127, 0}),
Polygon(
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lineColor = {95, 127, 95},
fillColor = {95, 127, 95},
fillPattern = FillPattern.Solid),
Line(
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color = {95, 127, 95}),
Text(
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textString = "%name",
lineColor = {0, 0, 255}),
Text(
extent = {
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textString = "d=%d"),
Line(
visible = useHeatPort,
points = {
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color = {191, 0, 0},
pattern = LinePattern.Dot),
Line(
points = {
{60, -30},
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{60, 30}},
color = {0, 127, 0})}),
Diagram(
coordinateSystem(
preserveAspectRatio = true,
extent = {
{-100, -100},
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graphics = {
Line(points = {
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Line(points = {
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Line(points = {
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fillPattern = FillPattern.Solid),
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Line(
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color = {128, 128, 128}),
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lineColor = {128, 128, 128},
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fillPattern = FillPattern.Solid),
Text(
extent = {
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lineColor = {128, 128, 128},
textString = "der(s_rel)")}));
end Damper;