pyva.systems.infiniteLayers.SolidLayer

class pyva.systems.infiniteLayers.SolidLayer(plate_prop)

Bases: AcousticLayer

Class for Modelling elastic solid material as InfiniteLayer.

prop

property of plate modelled as 3D layer

Type:

PlateProp

__init__(plate_prop)

Class contructor for SolidLayer objects.

Parameters:

plate_prop (PlateProp) – plate property of layer

Methods

__init__(plate_prop)

Class contructor for SolidLayer objects.

get_xdata(omega, kx)

Determine the appropriate xdata from omega and kx.

transfer_impedance(omega[, kx, ID, allard])

Transferimpedance of Solidlayer

Attributes

isequivalentfluid

Determine if layer is of type equivalent fluid

mass_per_area

Mass per area of SolidLayer.

static get_xdata(omega, kx)

Determine the appropriate xdata from omega and kx.

Infinite Layer theory often involves integration over wavenumber. Thus, the kx is the integration variable.

If omega is scalar xdata will be wavenumber in x (kx) if kx is scalar xdata will be angular frequency if kx and omega have same dimension it is assumed that kx belongs to a constant angle and is given by kx = omega/c0*sin(theta) and xdata will be angular frequency

Parameters:
  • omega (float or ndarray) – angular frequency

  • kx (float or ndarray) – wavenumber

Returns:

wavenumber or omega as DataAxis object

Return type:

DataAxis

property isequivalentfluid

Determine if layer is of type equivalent fluid

Defauls parameter is False

Returns:

False.

Return type:

bool

property mass_per_area

Mass per area of SolidLayer.

Returns:

mass per area.

Return type:

float

transfer_impedance(omega, kx=0, ID=[1, 2], allard=False)

Transferimpedance of Solidlayer

Implementation according to [1].

[1] A. Uthayasuriyan, Advanced vibro-acoustic condensed models for multi-layer structures, PhD Thesis, University de Lyon, Lyon, France, 2021.

Parameters:
  • omega (float or ndarray) – scalar angular frequency

  • kx (float or ndarray, optional) – In-plane wavenumber. The default is 0.

  • ID (list of int) – Left and right ID. The default is [1,2].

Returns:

[4 x 4] array of transferimpedance

Return type:

DynamicMatrix