/// <summary>
/// Make a femm model using parameters
/// This will check if file existed and use parameters the same to this one or not.
/// If not, build new one
/// </summary>
/// <param name="outfile">Output femm model</param>
/// <param name="original">The original femm model to insert into</param>
/// <param name="forcebuild">True if build even file existed</param>
/// <returns>0-OK,1-File existed, analyzed,-1-ERROR</returns>
public virtual void BuildFEMModel(String outfile, FEMM femm = null)
{
// make sure coordinates were calculated
if (!isPointsCoordCalculated)
{
throw new InvalidOperationException("Points must be calculated before make FEM model.");
}
if (femm == null)
{
femm = FEMM.DefaultFEMM;
}
femm.newdocument(FEMM.DocumentType.Magnetic);
// setup problems params
femm.mi_probdef(0, FEMM.UnitsType.millimeters, FEMM.ProblemType.planar, 1e-8, GeneralParams.MotorLength, 7, FEMM.ACSolverType.Succ_Approx);
// build a rotor in femm
Rotor.BuildInFEMM(femm);
// build a stator in femm
Stator.BuildInFEMM(femm);
// build airgap (put label)
Airgap.BuildInFEMM(femm);
// clear selected, refresh, and go to natural zoom
femm.mi_clearselected();
femm.mi_zoomnatural();
femm.mi_saveas(outfile);
femm.mi_close();
// write md5 to it
FEMM.mi_modifyFEMMComment(outfile, GetMD5String());
}
/// <summary>
/// Make a femm model using parameters from rotor creation process
/// </summary>
/// <param name="outfile">Output femm model</param>
/// <param name="original">The original femm model to insert into</param>
public void MakeAFEMMModelFile(String outfile, String original = "")
{
if (!isPointsCoordCalculated)
{
CalcPointsCoordinates();
}
// create new or open an exist
if (original == "")
{
FEMM.newdocument(FEMM.DocumentType.Magnetic);
}
else
{
FEMM.open(original);
}
//
double Rrotor = RotorParams.Rrotor;
double alpha = 2 * Math.PI / (4 * RotorParams.p);
double alphaM = RotorParams.alphaM;
int p = RotorParams.p;
///// Build 1 poles
// point far right of rotors
double xI = Rrotor;
double yI = 0;
// segments (magnet)
FEMM.mi_addSegmentEx(xA, yA, xB, yB, Group_Lines); //AB
FEMM.mi_addSegmentEx(xA, yA, xF, yF, Group_Lines); //AF
FEMM.mi_addSegmentEx(xA, yA, xD, yD, Group_Lines); //AD
FEMM.mi_addSegmentEx(xB, yB, xC, yC, Group_Lines); //BC
FEMM.mi_addSegmentEx(xC, yC, xD, yD, Group_Lines); //CD
// mirrored segments (magnet)
FEMM.mi_addSegmentEx(xA, -yA, xB, -yB, Group_Lines); //AB
FEMM.mi_addSegmentEx(xA, -yA, xF, -yF, Group_Lines); //AF
FEMM.mi_addSegmentEx(xA, -yA, xD, -yD, Group_Lines); //AD
FEMM.mi_addSegmentEx(xB, -yB, xC, -yC, Group_Lines); //BC
FEMM.mi_addSegmentEx(xC, -yC, xD, -yD, Group_Lines); //CD
// barrier segments
FEMM.mi_addSegmentEx(xC, yC, xC, -yC, Group_Lines); //AB
FEMM.mi_addSegmentEx(xD, yD, xD, -yD, Group_Lines); //AF
// arcsegments
double a = (Math.Atan(yF / xF) - Math.Atan(yB / xB)) * 180 / Math.PI;
FEMM.mi_addArcEx(xB, yB, xF, yF, a, 1, Group_Lines);
FEMM.mi_addArcEx(xF, -yF, xB, -yB, a, 1, Group_Lines);
// arcsegments rotor
FEMM.mi_addArcEx(xI, yI, xG, yG, alpha * 180 / Math.PI, 1, Group_Lines);
FEMM.mi_addArcEx(xG, -yG, xI, yI, alpha * 180 / Math.PI, 1, Group_Lines);
// blocks
// air block label
double air1X = (xA + xB + xF) / 3;
double air1Y = (yA + yB + yF) / 3;
FEMM.mi_addBlockLabelEx(air1X, air1Y, AirBlockName, Group_Label);
FEMM.mi_addBlockLabelEx(air1X, -air1Y, AirBlockName, Group_Label);
FEMM.mi_addBlockLabelEx((xC + xD) / 2, 0, AirBlockName, Group_Label);
// magnet block label
double magBlockLabelX = (xA + xC) / 2;
double magBlockLabelY = (yA + yC) / 2;
FEMM.mi_addBlockLabelEx(magBlockLabelX, magBlockLabelY, MagnetBlockName, Group_Label, alphaM * 180 / Math.PI - 90 + 180);//+180 but set back later
FEMM.mi_addBlockLabelEx(magBlockLabelX, -magBlockLabelY, MagnetBlockName, Group_Label, 90 - alphaM * 180 / Math.PI + 180);
///// Build 2 poles
FEMM.mi_clearselected();
FEMM.mi_selectgroup(Group_Lines);
FEMM.mi_selectgroup(Group_Label);
FEMM.mi_copyrotate(0, 0, 360 / (2 * p), 1, FEMM.EditMode.group);
// rotate the magnet direction
FEMM.mi_clearselected();
FEMM.mi_selectlabel(magBlockLabelX, magBlockLabelY);
FEMM.mi_setblockprop(MagnetBlockName, true, 0, "", alphaM * 180 / Math.PI - 90, Group_Label, 0);
FEMM.mi_clearselected();
FEMM.mi_selectlabel(magBlockLabelX, -magBlockLabelY);
FEMM.mi_setblockprop(MagnetBlockName, true, 0, "", 90 - alphaM * 180 / Math.PI, Group_Label, 0);
///// Build p-1 pair of poles remaining
FEMM.mi_clearselected();
FEMM.mi_selectgroup(Group_Lines);
FEMM.mi_selectgroup(Group_Label);
FEMM.mi_copyrotate(0, 0, 360 / p, p - 1, FEMM.EditMode.group);
FEMM.mi_addBlockLabelEx(0, 0, SteelBlockName, Group_Rotor_Steel);
// clear selected, refresh, and go to natural zoom
FEMM.mi_clearselected();
FEMM.mi_zoomnatural();
// save as
if (Path.GetDirectoryName(outfile) == "")
{
outfile = Path.GetDirectoryName(original) + "\\" + outfile;
}
FEMM.mi_saveas(outfile);
FEMM.mi_close();
}
