# -*- coding: utf-8 -*-
import pytest
from pyleecan.Classes.LamSlotMag import LamSlotMag
from pyleecan.Classes.SlotM16 import SlotM16
from numpy import pi, exp, sqrt, arcsin, angle
from pyleecan.Classes.Slot import Slot
from pyleecan.Methods import ParentMissingError
Mag16_test = list()
# Internal Slot inset magnet with same top and bottom radius
lam = LamSlotMag(
Rint=80e-3,
Rext=200e-3,
is_internal=True,
is_stator=False,
)
lam.slot = SlotM16(Zs=4, W0=0.02, H0=0.02, H1=0.08, W1=0.04)
Mag16_test.append(
{
"test_obj": lam,
"Rmec": 200e-3,
"S_exp": 3.6033e-3,
"SA_exp": 3.2e-3,
"HA_exp": 0.081109,
"Ao": 0.10004,
"H_exp": 0.10025,
}
)
# Internal Slot inset magnet with same top and bottom radius
lam = LamSlotMag(
Rint=220e-3,
Rext=400e-3,
is_internal=False,
is_stator=True,
)
lam.slot = SlotM16(Zs=8, W0=0.02, H0=0.02, H1=0.08, W1=0.04)
Mag16_test.append(
{
"test_obj": lam,
"Rmec": 220e-3,
"S_exp": 3.5969e-3,
"SA_exp": 0.0032,
"HA_exp": 0.080624,
"Ao": 0.09094,
"H_exp": 0.10039,
}
)
# For AlmostEqual
DELTA = 1e-4
[docs]class Test_Magnet_Type_16_meth(object):
"""unittest for MagnetType16 methods"""
[docs] @pytest.mark.parametrize("test_dict", Mag16_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", Mag16_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, Ndisc=5000)
msg = "Return " + str(a) + " expected " + str(b)
assert a == pytest.approx(b, rel=DELTA), msg
[docs] @pytest.mark.parametrize("test_dict", Mag16_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", Mag16_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", Mag16_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", Mag16_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["Z8"]), rel=DELTA)
[docs] @pytest.mark.parametrize("test_dict", Mag16_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", Mag16_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"]
Z5 = point_dict["Z5"]
Z6 = point_dict["Z6"]
Z7 = point_dict["Z7"]
Z8 = point_dict["Z8"]
W0 = test_obj.slot.W0
H0 = test_obj.slot.H0
W1 = test_obj.slot.W1
H1 = test_obj.slot.H1
Rbo = test_obj.get_Rbo()
assert abs(Z1) == pytest.approx(Rbo, rel=DELTA)
assert abs(Z8) == pytest.approx(Rbo, rel=DELTA)
assert abs(Z1 - Z8) == pytest.approx(W0, rel=DELTA)
assert abs(Z2 - Z7) == pytest.approx(W0, rel=DELTA)
assert abs(Z1 - Z2) == pytest.approx(H0, rel=DELTA)
assert abs(Z7 - Z8) == pytest.approx(H0, rel=DELTA)
assert abs(Z4 - Z5) == pytest.approx(W1, rel=DELTA)
assert abs(Z3 - Z6) == pytest.approx(W1, rel=DELTA)
assert abs(Z3 - Z4) == pytest.approx(H1, rel=DELTA)
assert abs(Z5 - Z6) == pytest.approx(H1, rel=DELTA)
