seapy.couplings.couplingsurfaceplateacoustical.CouplingSurfacePlateAcoustical¶

class seapy.couplings.couplingsurfaceplateacoustical.CouplingSurfacePlateAcoustical(name, system, **properties)[source]¶

A model describing the coupling between a plate and a cavity.

__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.
`CouplingSurfacePlateAcoustical.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 plate to cavity radiation.
`critical_frequency`	Critical frequency.
`critical_wavelength`	Wavelength belonging to critical frequency.
`enabled`	Switch indicating whether the object is enabled.
`frequency`	Frequency.
`impedance_from`
`impedance_to`
`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`
`radiation_efficiency`	Radiation efficiency of a plate for bending waves.
`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`

Coupling loss factor for plate to cavity radiation.

$\eta_{plate, cavity} = \frac{\rho_0 c_0 \sigma}{\omega m^{''}}$

Attention

Which speed of sound???

See BAC, equation 3.6

critical_frequency[source]¶

Critical frequency.

$f_c = \frac{ c_0^2 } {1.8 c_L t}$

See BAC, 3.2.2 script.

critical_wavelength[source]¶: Wavelength belonging to critical frequency.

$\lambda_c = c_{g} / f_c$

radiation_efficiency[source]¶: Radiation efficiency of a plate for bending waves.