# -*- coding: utf-8 -*-
import pytest
from pyleecan.Classes.LamSlotMag import LamSlotMag
from pyleecan.Classes.SlotM13 import SlotM13
from numpy import pi, exp, sqrt
from pyleecan.Classes.Slot import Slot
Mag13_test = list()
# Internal Slot inset
lam = LamSlotMag(Rint=40e-3, Rext=90e-3, is_internal=True)
lam.slot = SlotM13(Zs=8, W0=0.04, H0=0.02, Hmag=0.02, Wmag=0.04, Rtopm=0.04)
Mag13_test.append(
{
"test_obj": lam,
"S_exp": 8.6016e-4,
"SA_exp": 7.3057e-4,
"Ao": 0.448186,
"H_exp": 0.02225,
"HA_exp": 0.02,
"Rmec": 90e-3,
}
)
# external slot inset
lam = LamSlotMag(Rint=110e-3, Rext=200e-3, is_internal=False)
lam.slot = SlotM13(Zs=4, W0=0.04, H0=0.025, Hmag=0.02, Wmag=0.04, Rtopm=0.04)
Mag13_test.append(
{
"test_obj": lam,
"S_exp": 9.51025e-4,
"SA_exp": 7.3057e-4,
"Ao": 0.36567,
"H_exp": 0.02466,
"HA_exp": 0.02,
"Rmec": 110e-3,
}
)
# Internal slot surface
lam = LamSlotMag(Rint=40e-3, Rext=90e-3, is_internal=True)
lam.slot = SlotM13(Zs=4, W0=0.08, H0=0, Hmag=0.02, Wmag=0.08, Rtopm=0.0601)
Mag13_test.append(
{
"test_obj": lam,
"S_exp": 5.05584e-4,
"SA_exp": 1.2166e-3,
"Ao": 0.9211,
"H_exp": 0.009377,
"HA_exp": 0.02,
"Rmec": 0.100622,
}
)
# For AlmostEqual
DELTA = 1e-4
[docs]class Test_Magnet_Type_13_meth(object):
"""unittest for MagnetType13 methods"""
[docs] @pytest.mark.parametrize("test_dict", Mag13_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.comp_surface()
a = result
b = test_dict["S_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_surface(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
[docs] @pytest.mark.parametrize("test_dict", Mag13_test)
def test_comp_surface_active(self, test_dict):
"""Check that the computation of the active surface is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.comp_surface_active()
a = result
b = test_dict["SA_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_surface_active(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
[docs] @pytest.mark.parametrize("test_dict", Mag13_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.comp_height()
a = result
b = test_dict["H_exp"]
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_height(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
[docs] @pytest.mark.parametrize("test_dict", Mag13_test)
def test_comp_height_active(self, test_dict):
"""Check that the computation of the active height is correct"""
test_obj = test_dict["test_obj"]
result = test_obj.slot.comp_height_active()
a = result
b = test_dict["HA_exp"]
msg = "Return " + str(a) + " expected " + str(b)
# assert a == pytest.approx(b, rel=DELTA), msg
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_height_active(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
[docs] @pytest.mark.parametrize("test_dict", Mag13_test)
def test_comp_angle_opening(self, test_dict):
"""Check that the computation of the average opening angle is correct"""
test_obj = test_dict["test_obj"]
a = test_obj.slot.comp_angle_opening()
assert a == pytest.approx(test_dict["Ao"], rel=DELTA)
# Check that the analytical method returns the same result as the numerical one
b = Slot.comp_angle_opening(test_obj.slot)
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA)
[docs] @pytest.mark.parametrize("test_dict", Mag13_test)
def test_comp_width_opening(self, test_dict):
"""Check that the computation of the average opening width is correct"""
test_obj = test_dict["test_obj"]
a = test_obj.slot.comp_width_opening()
point_dict = test_obj.slot._comp_point_coordinate()
assert a == pytest.approx(abs(point_dict["Z1"] - point_dict["Z4"]), rel=DELTA)
[docs] @pytest.mark.parametrize("test_dict", Mag13_test)
def test_comp_mec_radius(self, test_dict):
"""Check that the computation of the mechanical radius is correct"""
test_obj = test_dict["test_obj"]
a = test_obj.comp_radius_mec()
assert a == pytest.approx(test_dict["Rmec"], rel=DELTA)
[docs] @pytest.mark.parametrize("test_dict", Mag13_test)
def test_comp_point_coordinate(self, test_dict):
"""Check that the point coordinates are correct"""
test_obj = test_dict["test_obj"]
point_dict = test_obj.slot._comp_point_coordinate()
Z1 = point_dict["Z1"]
Z2 = point_dict["Z2"]
Z3 = point_dict["Z3"]
Z4 = point_dict["Z4"]
ZM0 = point_dict["ZM0"]
ZM1 = point_dict["ZM1"]
ZM2 = point_dict["ZM2"]
ZM3 = point_dict["ZM3"]
ZM4 = point_dict["ZM4"]
W0 = test_obj.slot.W0
H0 = test_obj.slot.H0
Wmag = test_obj.slot.Wmag
Hmag = test_obj.slot.Hmag
assert abs(Z1 - Z4) == pytest.approx(W0, rel=DELTA)
assert abs(Z2 - Z3) == pytest.approx(W0, rel=DELTA)
assert abs(Z1 - Z2) == pytest.approx(H0, rel=DELTA)
assert abs(Z3 - Z4) == pytest.approx(H0, rel=DELTA)
if test_obj.is_internal:
assert ZM0 == pytest.approx(Z1.real + Hmag - H0, rel=DELTA)
else:
assert ZM0 == pytest.approx(Z1.real - Hmag + H0, rel=DELTA)
assert abs(ZM1 - ZM4) == pytest.approx(Wmag, rel=DELTA)
assert abs(ZM2 - ZM3) == pytest.approx(Wmag, rel=DELTA)
assert abs(ZM0 - (Z2 + Z3) / 2) == pytest.approx(Hmag, rel=DELTA)
