model cavitazione
  SFPLibDyn.Hydraulic.Sources.Pumps.FixedUniDirPump fixedUniDirPump(max_displ = 1.6e-4)  annotation(
    Placement(transformation(origin = {2, 22}, extent = {{-15, -15}, {15, 15}})));
  SFPLibDyn.Mechanical.Rotational.Sources.Motor motor annotation(
    Placement(transformation(origin = {-42, 22}, extent = {{-15, -15}, {15, 15}})));
  SFPLibDyn.Signals.Source.Constant constant1(k = 1000)  annotation(
    Placement(transformation(origin = {-76, 22}, extent = {{-10, -10}, {10, 10}})));
  SFPLibDyn.Hydraulic.Sources.Tank tank annotation(
    Placement(transformation(origin = {42, 40}, extent = {{-6, -4.5}, {6, 4.5}})));
  SFPLibDyn.Hydraulic.Volumes.Volume2p volume2p(vol_0 = 0.001, pressure(start = 0, fixed = true))  annotation(
    Placement(transformation(origin = {2, -14}, extent = {{-10, -10}, {10, 10}})));
  SFPLibDyn.Hydraulic.Orifices.OrificeVariable orificeVariable(min_signal = 0.01, diam = 0.036)  annotation(
    Placement(transformation(origin = {2, -45}, extent = {{-6, -12}, {6, 12}})));
  SFPLibDyn.Hydraulic.Sources.Tank tank1 annotation(
    Placement(transformation(origin = {2, -70}, extent = {{-6, -4.5}, {6, 4.5}})));
  SFPLibDyn.Signals.Source.Ramp ramp(val_initial = 1, slope = -1, time_start = 0.2)  annotation(
    Placement(transformation(origin = {-26, -52}, extent = {{-10, -10}, {10, 10}})));
equation
  connect(fixedUniDirPump.r1, motor.r1) annotation(
    Line(points = {{-16, 22}, {-24, 22}}));
  connect(motor.u1, constant1.y1) annotation(
    Line(points = {{-56, 22}, {-66, 22}}));
  connect(tank.h1, fixedUniDirPump.h2) annotation(
    Line(points = {{42, 44}, {42, 60}, {2, 60}, {2, 38}}));
  connect(fixedUniDirPump.h1, volume2p.h2) annotation(
    Line(points = {{2, 8}, {2, -4}}));
  connect(volume2p.h1, orificeVariable.h2) annotation(
    Line(points = {{2, -24}, {2, -33}}));
  connect(orificeVariable.h1, tank1.h1) annotation(
    Line(points = {{2, -57}, {2, -66}}));
  connect(orificeVariable.u1, ramp.y1) annotation(
    Line(points = {{-2.5, -52}, {-16, -52}}));

annotation(
    uses(SFPLibDyn(version = "3.2")),
  Diagram(coordinateSystem(extent = {{-100, -100}, {100, 100}}, grid = {1, 1})),
  version = "",
  __OpenModelica_simulationFlags(lv = "LOG_STDOUT,LOG_ASSERT,LOG_STATS", s = "dassl", variableFilter = ".*"),
  experiment(StartTime = 0, StopTime = 2, Tolerance = 1e-06, Interval = 0.0004));
end cavitazione;