chrono::fea::AverageSectionParameters Struct Reference

## Description

The aeverage section properties of tapered section could be stored in this struct.

`#include <ChBeamSectionTaperedTimoshenko.h>`

Collaboration diagram for chrono::fea::AverageSectionParameters:

## Public Attributes | |

double | mu |

mass per unit length | |

double | alpha |

section rotation about elastic center[rad] | |

double | Cy |

elastic center y displacement respect to centerline | |

double | Cz |

elastic center z displacement respect to centerline | |

double | Sy |

shear center y displacement respect to centerline | |

double | Sz |

shear center z displacement respect to centerline | |

double | My |

mass center y displacement respect to centerline | |

double | Mz |

mass center z displacement respect to centerline | |

double | Jyy |

inertia Jyy per unit lenght, in centerline reference, measured along centerline main axes | |

double | Jzz |

inertia Jzz per unit lenght, in centerline reference, measured along centerline main axes | |

double | Jyz |

inertia Jyz per unit lenght, in centerline reference, measured along centerline main axes | |

double | Jxx |

inertia Jxx per unit lenght, in centerline reference, measured along centerline main axes | |

double | Qy |

mass moment of area along yy, in centerline reference, measured along centerline main axes | |

double | Qz |

mass moment of area along zz, in centerline reference, measured along centerline main axes | |

double | mass_phi |

rotation angle of mass principal axis about elastic center[rad] | |

double | Jmyy |

inertia Jyy per unit lenght, in mass center reference, measured along mass principal axes | |

double | Jmzz |

inertia Jzz per unit lenght, in mass center reference, measured along mass principal axes | |

double | Jmyz |

inertia Jyz per unit lenght, in mass center reference, measured along mass principal axes | |

double | Jmxx |

inertia Jxx per unit lenght, in mass center reference, measured along mass principal axes | |

double | Qmy |

mass moment of area along yy, in mass center reference, measured along mass principal axes, which is exactly zero in theory. | |

double | Qmz |

mass moment of area along zz, in mass center reference, measured along mass principal axes, which is exactly zero in theory. | |

double | EA |

axial rigidity | |

double | GJ |

torsion rigidity | |

double | GAyy |

shear regidity along yy, evaluated in the elastic center and elastic principal axis. GAyy=ky*G*A | |

double | GAzz |

shear regidity along zz, evaluated in the elastic center and elastic principal axis. GAzz=kz*G*A | |

double | EIyy |

bending regidity about yy, evaluated in the elastic center and elastic principal axis | |

double | EIzz |

bending rigidity about zz, evaluated in the elastic center and elastic principal axis | |

double | GAmyy |

shear regidity along yy, evaluated in the mass center and mass principal axis | |

double | GAmzz |

shear regidity along zz, evaluated in the mass center and mass principal axis | |

double | EImyy |

bending regidity about yy, evaluated in the mass center and mass principal axis | |

double | EImzz |

bending rigidity about zz, evaluated in the mass center and mass principal axis | |

double | phimy |

shear-deformation parameter, phimy = 12*EImzz/(GAmyy*L*L) | |

double | phimz |

shear-deformation parameter, phimz = 12*EImyy/(GAmzz*L*L) | |

double | phiy |

shear-deformation parameter, phiy = 12*EIzz/(GAyy*L*L) | |

double | phiz |

shear-deformation parameter, phiz = 12*EIyy/(GAzz*L*L) | |

DampingCoefficients | rdamping_coeff |

damping parameters | |

double | artificial_factor_for_shear_damping |

An artificial factor to modify the damping coefficient in the shear deformation, which may be helpful to improve the numerical stability of Timoshenko beam. More... | |

## Member Data Documentation

## ◆ artificial_factor_for_shear_damping

double chrono::fea::AverageSectionParameters::artificial_factor_for_shear_damping |

An artificial factor to modify the damping coefficient in the shear deformation, which may be helpful to improve the numerical stability of Timoshenko beam.

But you need to take care of the final structural damping ratio of your model after assigning this factor.

The documentation for this struct was generated from the following file:

- /builds/uwsbel/chrono/src/chrono/fea/ChBeamSectionTaperedTimoshenko.h