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Newmark.H
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Newmark.H
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2016 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::RBD::rigidBodySolvers::Newmark
Description
Newmark 2nd-order time-integrator for 6DoF solid-body motion.
Reference:
\verbatim
Newmark, N. M. (1959).
A method of computation for structural dynamics.
Journal of the Engineering Mechanics Division, 85(3), 67-94.
\endverbatim
Example specification in dynamicMeshDict:
\verbatim
solver
{
type Newmark;
gamma 0.5; // Velocity integration coefficient
beta 0.25; // Position integration coefficient
}
\endverbatim
SourceFiles
Newmark.C
\*---------------------------------------------------------------------------*/
#ifndef Newmark_H
#define Newmark_H
#include "rigidBodySolver.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace RBD
{
namespace rigidBodySolvers
{
/*---------------------------------------------------------------------------*\
Class Newmark Declaration
\*---------------------------------------------------------------------------*/
class Newmark
:
public rigidBodySolver
{
// Private data
//- Coefficient for velocity integration (default: 0.5)
const scalar gamma_;
//- Coefficient for position and orientation integration (default: 0.25)
const scalar beta_;
public:
//- Runtime type information
TypeName("Newmark");
// Constructors
//- Construct for the given body from dictionary
Newmark
(
rigidBodyMotion& body,
const dictionary& dict
);
//- Destructor
virtual ~Newmark();
// Member Functions
//- Integrate the rigid-body motion for one time-step
virtual void solve
(
const scalarField& tau,
const Field<spatialVector>& fx
);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace rigidBodySolvers
} // End namespace RBD
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //