pyva.properties.structuralPropertyClasses.BeamProp

class pyva.properties.structuralPropertyClasses.BeamProp(cross_section=<class 'pyva.properties.geometricalPropertyClasses.CrossSection'>, iso_mat=<class 'pyva.properties.materialClasses.IsoMat'>)

Bases: object

Class for beams.

The BeamProp class deals with the bending and longitudinal wave properties of beams. In future implementations all three motions of beams should be implemented.

__init__(cross_section=<class 'pyva.properties.geometricalPropertyClasses.CrossSection'>, iso_mat=<class 'pyva.properties.materialClasses.IsoMat'>)

Constructor of BeamProp.

Parameters:

cross_section (CrossSection, optional) – Cross section of beam. The default is geoPC.CrossSection.
iso_mat (IsoMat, optional) – Isotropic material of beam. The default is mc.IsoMat.

Return type:

None.

Methods

`__init__`([cross_section, iso_mat])	Constructor of BeamProp.
`c_group`(omega)	group wave speed for bending around x
`c_phase`(omega)	phase wave speed for bending around x
`kx`(omega)	wavenumber for bending around x
`ky`(omega)	wavenumber for bending around y
`stiffness_bending_x`(omega)	Point stiffness of half beam for bending in x
`stiffness_bending_y`(omega)	Point stiffness of half beam for bending in y
`stiffness_longitudinal_z`(omega)	Point stiffness of half beam for longitudinal in z.
`wavelength_x`(omega)	wavelength for bending around x
`wavelength_y`(omega)	wavelength for bending around y
`z_beam_inf_x`(omega)	Point impedance of half beam for bending in x
`z_beam_inf_y`(omega)	Point impedance of half beam for bending in y

Attributes

`Bx`	Bending stiffness around x-axis.
`By`	Bending stiffness in around x
`mass_per_length`	mass per beam length

property Bx

Bending stiffness around x-axis.

Returns:: bending stiffness.
Return type:: float

property By

Bending stiffness in around x

Returns:: bending stiffness.
Return type:: float

c_group(omega)

group wave speed for bending around x

Parameters:: omega (float) – angular frequency.
Returns:: phase wave speed.
Return type:: float

c_phase(omega)

phase wave speed for bending around x

Parameters:: omega (float) – angular frequency.
Returns:: phase wave speed.
Return type:: float

kx(omega)

wavenumber for bending around x

Parameters:: omega (float) – angular frequency.
Returns:: bending wavenumber.
Return type:: float

ky(omega)

wavenumber for bending around y

Parameters:: omega (float) – angular frequency.
Returns:: bending wavenumber.
Return type:: float

property mass_per_length

mass per beam length

Returns:: mass per length.
Return type:: float

stiffness_bending_x(omega)

Point stiffness of half beam for bending in x

Parameters:: omega (float) – angular frequency.
Returns:: half beam stiffness.
Return type:: complex

stiffness_bending_y(omega)

Point stiffness of half beam for bending in y

Parameters:: omega (float) – angular frequency.
Returns:: half beam stiffness.
Return type:: complex

stiffness_longitudinal_z(omega)

Point stiffness of half beam for longitudinal in z.

Parameters:: omega (float) – angular frequency.
Returns:: half beam stiffness.
Return type:: complex

wavelength_x(omega)

wavelength for bending around x

Parameters:: omega (float) – angular frequency.
Returns:: bending wavelength.
Return type:: float

wavelength_y(omega)

wavelength for bending around y

Parameters:: omega (float) – angular frequency.
Returns:: bending wavelength.
Return type:: float

z_beam_inf_x(omega)

Point impedance of half beam for bending in x

Parameters:: omega (float) – angular frequency.
Returns:: half beam impedance.
Return type:: complex

z_beam_inf_y(omega)

Point impedance of half beam for bending in y

Parameters:: omega (float) – angular frequency.
Returns:: half beam impedance.
Return type:: complex