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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 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::solidBodyMotionFunctions::SDA
Description
Ship design analysis (SDA) 3DoF motion function.
Comprising sinusoidal roll (rotation about x), heave (z-translation)
and sway (y-translation) motions with changing amplitude and phase.
See also
Foam::solidBodyMotionFunctions::tabulated6DoFMotion
SourceFiles
SDA.C
\*---------------------------------------------------------------------------*/
#ifndef SDA_H
#define SDA_H
#include "solidBodyMotionFunction.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace solidBodyMotionFunctions
{
/*---------------------------------------------------------------------------*\
Class SDA Declaration
\*---------------------------------------------------------------------------*/
class SDA
:
public solidBodyMotionFunction
{
// Private Data
//- Center of gravity
vector CofG_;
//- Model scale ratio
scalar lambda_;
//- Max roll amplitude [rad]
scalar rollAmax_;
//- Min roll amplitude [rad]
scalar rollAmin_;
//- Heave amplitude [m]
scalar heaveA_;
//- Sway amplitude [m]
scalar swayA_;
//- Damping Coefficient [-]
scalar Q_;
//- Time Period for liquid [sec]
scalar Tp_;
//- Natural Period of Ship [sec]
scalar Tpn_;
//- Reference time step [sec]
scalar dTi_;
//- Incr. in Tp/unit 'dTi'[-]
scalar dTp_;
public:
//- Runtime type information
TypeName("SDA");
// Constructors
//- Construct from components
SDA
(
const word& name,
const dictionary& SBMFCoeffs,
const Time& runTime
);
//- Disallow default bitwise copy construction
SDA(const SDA&) = delete;
//- Construct and return a clone
virtual autoPtr<solidBodyMotionFunction> clone() const
{
return autoPtr<solidBodyMotionFunction>
(
new SDA
(
name_,
SBMFCoeffs_,
time_
)
);
}
//- Destructor
virtual ~SDA();
// Member Functions
//- Return the solid-body motion transformation septernion
virtual septernion transformation() const;
// Member Operators
//- Disallow default bitwise assignment
void operator=(const SDA&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace solidBodyMotionFunctions
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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