Source code for Tests.Methods.Machine.test_Magnet_Type_10_meth

# -*- coding: utf-8 -*-

import pytest

from pyleecan.Classes.LamSlotMag import LamSlotMag
from pyleecan.Classes.SlotMFlat import SlotMFlat
from pyleecan.Classes.MagnetType10 import MagnetType10
from pyleecan.Classes.Segment import Segment
from pyleecan.Methods.Machine.Magnet.comp_surface import comp_surface
from pyleecan.Methods import ParentMissingError

from numpy import exp

Mag10_test = list()
# Internal Slot
lam = LamSlotMag(is_internal=True, Rext=0.1325)
lam.slot = SlotMFlat(H0=5e-3, W0=10e-3, Zs=12)
lam.slot.magnet = [MagnetType10(Hmag=5e-3, Wmag=10e-3)]
Mag10_test.append(
    {"test_obj": lam, "S_exp": 5e-5, "Ao": 0.078449, "H_exp": 5e-3, "Rmec": 0.1325}
)

# Outward Slot
lam = LamSlotMag(is_internal=False, Rint=0.1325)
lam.slot = SlotMFlat(H0=5e-3, W0=10e-3, Zs=12)
lam.slot.magnet = [MagnetType10(Hmag=5e-3, Wmag=10e-3)]
Mag10_test.append(
    {
        "test_obj": lam,
        "S_exp": 5e-5,
        "Ao": 0.072745,
        "H_exp": 5e-3,
        "Rmec": 0.1324056630650208,
    }
)

# For AlmostEqual
DELTA = 1e-4


[docs]@pytest.mark.METHODS class Test_Magnet_Type_10_meth(object): """unittest for MagnetType10 methods"""
[docs] @pytest.mark.parametrize("test_dict", Mag10_test) def test_comp_surface(self, test_dict): """Check that the computation of the surface is correct""" test_obj = test_dict["test_obj"] result = test_obj.slot.magnet[0].comp_surface() a = result b = test_dict["S_exp"] msg = "Return " + str(a) + " expected " + str(b) assert abs((a - b) / a - 0) < DELTA, msg # Compare numerical and analytical results b = comp_surface(test_obj.slot.magnet[0]) msg = "Analytical: " + str(a) + " Numerical " + str(b) assert abs((a - b) / a - 0) < DELTA, msg
[docs] @pytest.mark.parametrize("test_dict", Mag10_test) def test_comp_height(self, test_dict): """Check that the computation of the height is correct""" test_obj = test_dict["test_obj"] result = test_obj.slot.magnet[0].comp_height() a = result b = test_dict["H_exp"] msg = "Return " + str(a) + " expected " + str(b) assert abs((a - b) / a - 0) < DELTA, msg
[docs] @pytest.mark.parametrize("test_dict", Mag10_test) def test_comp_angle_op(self, test_dict): """Check that the computation of the opening angle is correct""" test_obj = test_dict["test_obj"] result = test_obj.slot.magnet[0].comp_angle_opening() a = result b = test_dict["Ao"] msg = "Return " + str(a) + " expected " + str(b) assert abs((a - b) / a - 0) < DELTA, msg # Checking the error magnet = MagnetType10(Hmag=5e-3, Wmag=10e-3) with pytest.raises(ParentMissingError) as context: magnet.comp_angle_opening()
[docs] @pytest.mark.parametrize("test_dict", Mag10_test) def test_comp_radius_mec(self, test_dict): """Check that the computation of the opening angle is correct""" test_obj = test_dict["test_obj"] result = test_obj.comp_radius_mec() assert result == test_dict["Rmec"]
[docs] def test_build_geometry_in(self): """check that curve_list is correct (inwards magnet)""" lam = LamSlotMag( Rint=40e-3, Rext=1, is_internal=True, is_stator=False, L1=0.45, Nrvd=1, Wrvd=0.05, ) lam.slot = SlotMFlat( Zs=8, W0=0.6, H0=0.2, magnet=[MagnetType10(Wmag=0.6, Hmag=0.2)] ) test_obj = lam.slot.magnet[0] alpha = lam.slot.comp_angle_opening_magnet() Z1 = 1 * exp(-1j * alpha / 2) - 0.2 Z2 = 1 * exp(1j * alpha / 2) - 0.2 Z3 = Z1 + 0.2 Z4 = Z2 + 0.2 # Creation of curve curve_list = list() curve_list.append(Segment(Z1, Z3)) curve_list.append(Segment(Z3, Z4)) curve_list.append(Segment(Z4, Z2)) curve_list.append(Segment(Z2, Z1)) surface = test_obj.build_geometry() result = surface[0].get_lines() for i in range(0, len(result)): a = result[i].begin b = curve_list[i].begin assert abs((a - b) / a - 0) < DELTA a = result[i].end b = curve_list[i].end assert abs((a - b) / a - 0) < DELTA # Checking the error magnet = MagnetType10(Hmag=5e-3, Wmag=10e-3) with pytest.raises(ParentMissingError) as context: magnet.build_geometry()
[docs] def test_build_geometry_out(self): """check that curve_list is correct (outwards magnet)""" lam = LamSlotMag( Rint=1, Rext=0.09, is_internal=False, is_stator=False, L1=0.45, Nrvd=1, Wrvd=0.05, ) lam.slot = SlotMFlat( Zs=8, W0=0.6, H0=0.2, magnet=[MagnetType10(Wmag=0.6, Hmag=0.2)] ) test_obj = lam.slot.magnet[0] alpha = lam.slot.comp_angle_opening_magnet() Z1 = 1 * exp(-1j * alpha / 2) + 0.2 Z2 = 1 * exp(1j * alpha / 2) + 0.2 Z3 = Z1 - 0.2 Z4 = Z2 - 0.2 # Creation of curve curve_list = list() curve_list.append(Segment(Z1, Z3)) curve_list.append(Segment(Z3, Z4)) curve_list.append(Segment(Z4, Z2)) curve_list.append(Segment(Z2, Z1)) surface = test_obj.build_geometry() result = surface[0].get_lines() for i in range(0, len(result)): a = result[i].begin b = curve_list[i].begin assert abs((a - b) / a - 0) < DELTA a = result[i].end b = curve_list[i].end assert abs((a - b) / a - 0) < DELTA # Checking the error magnet = MagnetType10(Hmag=5e-3, Wmag=10e-3) with pytest.raises(ParentMissingError) as context: magnet.build_geometry() # Is simplified + W0 > Wmag lam = LamSlotMag( Rint=1, Rext=0.09, is_internal=False, is_stator=False, L1=0.45, Nrvd=1, Wrvd=0.05, ) lam.slot = SlotMFlat( Zs=8, W0=0.8, H0=0.2, magnet=[MagnetType10(Wmag=0.6, Hmag=0.2)] ) test_obj = lam.slot.magnet[0] surface = test_obj.build_geometry(is_simplified=True) assert len(surface[0].line_list) == 3 # Is simplified + H0 < Hmag lam = LamSlotMag( Rint=1, Rext=0.09, is_internal=False, is_stator=False, L1=0.45, Nrvd=1, Wrvd=0.05, ) lam.slot = SlotMFlat( Zs=8, W0=0.6, H0=0.2, magnet=[MagnetType10(Wmag=0.6, Hmag=0.8)] ) test_obj = lam.slot.magnet[0] surface = test_obj.build_geometry(is_simplified=True) assert len(surface[0].line_list) == 3 # Type Magnet 1 lam = LamSlotMag( Rint=1, Rext=0.09, is_internal=False, is_stator=False, L1=0.45, Nrvd=1, Wrvd=0.05, ) lam.slot = SlotMFlat( Zs=8, W0=0.6, H0=0.2, magnet=[MagnetType10(Wmag=0.6, Hmag=0.8)] ) lam.slot.magnet[0].type_magnetization = 1 surface = lam.build_geometry() assert len(surface) == 9 # Type Magnet 2 lam = LamSlotMag( Rint=1, Rext=0.09, is_internal=False, is_stator=False, L1=0.45, Nrvd=1, Wrvd=0.05, ) lam.slot = SlotMFlat( Zs=8, W0=0.6, H0=0.2, magnet=[MagnetType10(Wmag=0.6, Hmag=0.8)] ) lam.slot.magnet[0].type_magnetization = 2 surface = lam.build_geometry() assert len(surface) == 9