seapy.couplings.couplingsurfaceplateacoustical.CouplingSurfacePlateAcoustical

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

Bases: seapy.couplings.coupling.Coupling

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
clf[source]

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.

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