Source code for pyleecan.Methods.Slot.SlotW25.build_geometry_active

from numpy import angle, exp, linspace, zeros

from ....Classes.Arc1 import Arc1
from ....Classes.Segment import Segment
from ....Classes.SurfLine import SurfLine
from ....Functions.labels import WIND_LAB, DRAW_PROP_LAB


[docs]def build_geometry_active(self, Nrad, Ntan, alpha=0, delta=0): """Split the slot winding area in several zone Parameters ---------- self : SlotW25 A SlotW25 object Nrad : int Number of radial layer Ntan : int Number of tangentiel layer alpha : float Angle for rotation (Default value = 0) [rad] delta : Complex complex for translation (Default value = 0) Returns ------- surf_list: list List of surface delimiting the winding zone """ # get the name of the lamination lam_label = self.parent.get_label() point_dict = self._comp_point_coordinate() Z3 = point_dict["Z3"] Z4 = point_dict["Z4"] Z5 = point_dict["Z5"] Z6 = point_dict["Z6"] X = linspace(Z3, Z4, Nrad + 1) # Nrad+1 and Ntan+1 because 3 points => 2 zones Z = zeros((Nrad + 1, Ntan + 1), dtype=complex) for ii in range(Nrad + 1): Z[ii][:] = abs(X[ii]) * exp( 1j * linspace(angle(X[ii]), angle(X[ii].conjugate()), Ntan + 1) ) if self.is_outwards(): assert abs(Z3) < abs(Z4) assert abs(Z6) < abs(Z5) assert abs(Z[0][0] - Z3) < 1e-6 assert abs(Z[Nrad][0] - Z4) < 1e-6 assert abs(Z[0][Ntan] - Z6) < 1e-6 assert abs(Z[Nrad][Ntan] - Z5) < 1e-6 # We go thought the zone by Rad then Tan, starting by (0,0) surf_list = list() for jj in range(Ntan): # jj from 0 to Ntan-1 for ii in range(Nrad): # ii from 0 to Nrad-1 Z1 = Z[ii][jj] Z2 = Z[ii][jj + 1] Z3 = Z[ii + 1][jj + 1] Z4 = Z[ii + 1][jj] point_ref = (Z1 + Z2 + Z3 + Z4) / 4 # reference point of the surface # With one zone the order would be [Z7,Z4,Z5,Z6] curve_list = list() curve_list.append(Arc1(Z1, Z2, abs(Z1), is_trigo_direction=True)) curve_list.append( Segment( Z2, Z3, prop_dict={DRAW_PROP_LAB: False}, ) ) curve_list.append( Arc1( Z3, Z4, -abs(Z3), is_trigo_direction=False, prop_dict={DRAW_PROP_LAB: False}, ) ) curve_list.append( Segment( Z4, Z1, prop_dict={DRAW_PROP_LAB: jj != 0}, ) ) surface = SurfLine( line_list=curve_list, label=lam_label + "_" + WIND_LAB + "_R" + str(ii) + "-T" + str(jj) + "-S0", point_ref=point_ref, ) surf_list.append(surface) for surf in surf_list: surf.rotate(alpha) surf.translate(delta) return surf_list