def helper_numerical_tests_eqf(self, materials, backings, tol):
for mat_name in materials:
mat = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat_name),
force=EqFluidJCA)
for (backing_type, backing_func) in backings:
for d in THICKNESSES:
for a in ANGLES:
reference = np.loadtxt(
THIS_FILE_DIR +
'/references/eqf/{}_{}mm_{}_{}deg.PW'.format(
mat_name, int(d * 1e3), backing_type, a))
for l in reference:
S = Solver()
S.layers = [Layer(mat, d)]
S.backing = backing_func
result = S.solve(l[0], a)
asserts.assertAlmostEqual(
result['R'][0], l[2] + 1j * l[3], tol,
'(reflection) {}: f={}Hz angle={}deg d={:2.3f}m'
.format(mat_name, l[0], a, d))
if backing_func == backing.transmission:
asserts.assertAlmostEqual(
result['T'][0], l[5] + 1j * l[6], tol,
'(transmission) {}: f={}Hz angle={}deg d={:2.3f}m'
.format(mat_name, l[0], a, d))
def helper_bi_mat(self, mat1_name, mat2_name, backings, tol):
mat1 = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat1_name))
mat2 = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat2_name))
prefix = '{}_{}'.format(mat1_name, mat2_name)
for (backing_type, backing_func) in backings:
for (d1, d2) in itertools.product(THICKNESSES, THICKNESSES):
filename = THIS_FILE_DIR + '/references/{}_{}mm_{}mm_{}.csv'.format(
prefix, int(d1 * 1e3), int(d2 * 1e3), backing_type)
if not os.path.exists(filename):
continue
reference = np.loadtxt(filename)
for l in reference:
S = Solver()
S.layers = [Layer(mat1, d1), Layer(mat2, d2)]
S.backing = backing_func
result = S.solve(l[0], l[1])
asserts.assertAlmostEqual(result['R'][0], l[2] + 1j * l[3],
tol)
if backing_func == backing.transmission:
asserts.assertAlmostEqual(result['T'][0],
l[4] + 1j * l[5], tol)
def result_pymls(**kwargs):
name_project = kwargs.get("name_project", "unnamed_project")
ml = kwargs.get("ml", False)
termination = kwargs.get("termination", "rigid")
theta_d = kwargs.get("theta_d", 45)
freq = kwargs.get("frequencies", np.array([440]))
plot_RT = kwargs.get("plot_RT", False)
solver = Solver()
for _l in ml:
mat = load_material(_l[0])
solver.layers.append(Layer(mat, _l[1]))
R = []
if termination in ["rigid", "Rigid", "Rigid Wall", "Wall"]:
solver.backing = backing.rigid
T = False
else:
T = []
solver.backing = backing.transmission
for _f in freq:
_ = solver.solve(_f, theta_d)
R.append(_["R"][0])
if termination == "transmission":
T.append(_["T"][0])
if plot_RT:
plt.figure(name_project + "/ Reflection coefficient")
plt.plot(freq, [_.real for _ in R], 'r', label="Re(R) pymls")
plt.plot(freq, [_.imag for _ in R], 'b', label="Im(R) pymls")
plt.legend()
if T is not False:
plt.figure(name_project + "/ Transmission coefficient")
plt.plot(freq, [_.real for _ in T], 'r', label="Re(T) pymls")
plt.plot(freq, [_.imag for _ in T], 'b', label="Im(T) pymls")
plt.legend()
return freq, R, T
def helper_bi_mat_eqf(self,
mat1_name,
mat2_name,
backings,
tol,
no_is_default=-1,
ref_path='eqf'):
if no_is_default == 1:
mat1 = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat1_name))
else:
mat1 = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat1_name),
force=EqFluidJCA)
if no_is_default == 2:
mat2 = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat2_name))
else:
mat2 = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat2_name),
force=EqFluidJCA)
prefix = '{}_{}'.format(mat1_name, mat2_name)
for (backing_type, backing_func) in backings:
for (d1, d2) in itertools.product(THICKNESSES, THICKNESSES):
for a in ANGLES:
filename = THIS_FILE_DIR + '/references/{}/{}_{}mm_{}mm_{}_{}deg.PW'.format(
ref_path, prefix, int(d1 * 1e3), int(d2 * 1e3),
backing_type, a)
if not os.path.exists(filename):
continue
reference = np.loadtxt(filename)
for l in reference:
S = Solver()
S.layers = [Layer(mat1, d1), Layer(mat2, d2)]
S.backing = backing_func
result = S.solve(l[0], a)
asserts.assertAlmostEqual(
result['R'][0], l[2] + 1j * l[3], tol,
'(reflection) {} {} : f={}Hz angle={}deg d1={:2.3f}m d2={:2.3f}m'
.format(mat1_name, mat2_name, l[0], a, d1, d2))
if backing_func == backing.transmission:
asserts.assertAlmostEqual(
result['T'][0], l[5] + 1j * l[6], tol,
'(transmission) {} {} : f={}Hz angle={}deg d1={:2.3f}m d2={:2.3f}m'
.format(mat1_name, mat2_name, l[0], a, d1, d2))
def helper_bi_mat_eqf(self,
mat1_name,
mat2_name,
backings,
tol,
no_is_default=-1,
ref_path='eqf'):
if no_is_default == 1:
mat1 = from_yaml(THIS_FILE_DIR + f'/materials/{mat1_name}.yaml')
else:
mat1 = from_yaml(THIS_FILE_DIR + f'/materials/{mat1_name}.yaml',
force=EqFluidJCA)
if no_is_default == 2:
mat2 = from_yaml(THIS_FILE_DIR + f'/materials/{mat2_name}.yaml')
else:
mat2 = from_yaml(THIS_FILE_DIR + f'/materials/{mat2_name}.yaml',
force=EqFluidJCA)
prefix = f'{mat1_name}_{mat2_name}'
for (backing_type, backing_func) in backings:
for (d1, d2) in itertools.product(THICKNESSES, THICKNESSES):
for a in ANGLES:
filename = THIS_FILE_DIR + f'/references/{ref_path}/{prefix}_{int(d1*1e3)}mm_{int(d2*1e3)}mm_{backing_type}_{a}deg.PW'
if not os.path.exists(filename):
continue
reference = np.loadtxt(filename)
for l in reference:
S = Solver()
S.layers = [Layer(mat1, d1), Layer(mat2, d2)]
S.backing = backing_func
result = S.solve(l[0], a)
self.assertAlmostEqual(
result['R'][0], l[2] + 1j * l[3], tol,
f'(reflection) {mat1_name} {mat2_name} : f={l[0]}Hz angle={a}deg d1={d1:2.3f}m d2={d2:2.3f}m'
)
if backing_func == backing.transmission:
self.assertAlmostEqual(
result['T'][0], l[5] + 1j * l[6], tol,
f'(transmission) {mat1_name} {mat2_name} : f={l[0]}Hz angle={a}deg d1={d1:2.3f}m d2={d2:2.3f}m'
)
def test_air_analytical(self):
for d in THICKNESSES:
S = Solver()
S.layers = [Layer(Air, d)]
S.backing = backing.rigid
result = S.solve(FREQS, 0)
for i_f, f in enumerate(result['f']):
omega = 2 * np.pi * f
k_air = omega * np.sqrt(Air.rho / Air.K)
Z_s = -1j * Air.Z / np.tan(k_air * d)
R_analytical = (Z_s - Air.Z) / (Z_s + Air.Z)
asserts.assertAlmostEqual(
R_analytical, result['R'][i_f], NB_PLACES,
'(reflection) f={}Hz, d={}, theta=0'.format(f, d))
def helper_numerical_tests(self, materials, backings, tol):
for mat_name in materials:
mat = from_yaml(THIS_FILE_DIR +
'/materials/{}.yaml'.format(mat_name))
for (backing_type, backing_func) in backings:
for d in THICKNESSES:
reference = np.loadtxt(
THIS_FILE_DIR + '/references/{}_{}mm_{}.csv'.format(
mat_name, int(d * 1e3), backing_type))
for l in reference:
S = Solver()
S.layers = [Layer(mat, d)]
S.backing = backing_func
result = S.solve(l[0], l[1])
asserts.assertAlmostEqual(result['R'][0],
l[2] + 1j * l[3], tol)
if backing_func == backing.transmission:
asserts.assertAlmostEqual(result['T'][0],
l[4] + 1j * l[5], tol)
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
import sys
sys.path.append('../')
from pymls import from_yaml, Solver, Layer, backing
freq = 20
d = 200e-3
theta = 30
foam = from_yaml('materials/foam2.yaml')
S = Solver()
S.layers = [Layer(foam, d)]
S.backing = backing.rigid
result = S.solve(freq, theta)
pymls = result['R'][0]
print("pymls: R = ", pymls)