seapy.couplings.couplingsurfaceacoustical.CouplingSurfaceAcoustical¶

class seapy.couplings.couplingsurfaceacoustical.CouplingSurfaceAcoustical(name, system, **properties)[source]¶

Coupling for cavity3D to cavity transmission.

__init__(name, system, **properties)¶

Constructor.

Parameters:	name (string) – Identifier junction (`seapy.junctions.junction`) – junction subsystem_from (`seapy.subsystems.Subsystem`) – subsystem from subsystem_to (`seapy.subsystems.Subsystem`) – subsystem_to

Methods

`__init__`(name, system, **properties)	Constructor.
`CouplingSurfaceAcoustical.df`
`disable`([subsystems])	Disable this coupling.
`enable`([subsystems])	Enable this coupling.
`info`([attributes])	Return dataframe.
`plot`(quantity[, yscale])	Plot quantity.

Attributes

`SORT`	str(object=’‘) -> str
`classname`	Name of class of the object.
`clf`	Coupling loss factor for transmission from a 3D cavity to a 3D cavity.
`CouplingSurfaceAcoustical.density`
`enabled`	Switch indicating whether the object is enabled.
`frequency`	Frequency.
`impedance_from`	Choses the right impedance of subsystem_from.
`impedance_to`	Choses the right impedance of subsystem_from.
`included`	Indicates whether the object is included in the analysis.
`junction`
`mobility_from`	Mobility of `subsystem_from` corrected for the type of coupling.
`mobility_to`	Mobility of `subsystem_to` corrected for the type of coupling.
`modal_coupling_factor`	Modal coupling factor of the coupling.
`name`
`reciproce`	Reciproce or inverse coupling.
`resistance_from`	Resistance of `subsystem_from` corrected for the type of coupling.
`resistance_to`	Resistance of `subsystem_to` corrected for the type of coupling.
`subsystem_from`
`subsystem_to`
`tau`	Non-resonant transmission coefficient by Leppington et al (1987).

Coupling loss factor for transmission from a 3D cavity to a 3D cavity.

$\eta_{12} = \frac{c S \tau_{12}}{8 \pi f V}$

See Craik, equation 4.20, page 100.

impedance_from[source]¶: Choses the right impedance of subsystem_from. Applies boundary conditions correction as well.

impedance_to[source]¶: Choses the right impedance of subsystem_from. Applies boundary conditions correction as well.

sound_reduction_index[source]¶

Sound reduction index.

$R_{12} = 10 \log_{10}{\frac{1}{\tau_{12}}}$

with:

See Craik, equation 1.26, page 10.

tau[source]¶: Non-resonant transmission coefficient by Leppington et al (1987).

See also

seapy.couplings.couplingsurfaceacoustical.tau()