# Vibroacoustics
#
# E.Rohan, V.Lukeš
# Homogenization of the vibro–acoustic transmission on periodically
# perforated elastic plates with arrays of resonators.
# https://arxiv.org/abs/2104.01367 (arXiv:2104.01367v1)

import os.path as op
import numpy as nm
from acoustics_macro_utils import get_homogmat
from sfepy.homogenization.utils import define_box_regions
from sfepy.discrete.fem import Mesh
from sfepy.discrete.fem.periodic import match_y_plane, match_x_plane

wdir = op.dirname(__file__)


def get_regions(filename_mesh):
    mesh = 
Mesh.from_file(filename_mesh)