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sixDoFRigidBodyMotion
sixDoFRigidBodyMotionRestraint
linearSpring
linearSpring.H
Go to the documentation of this file.
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::sixDoFRigidBodyMotionRestraints::linearSpring
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Description
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sixDoFRigidBodyMotionRestraints model. Linear spring.
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SourceFiles
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linearSpring.C
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\*---------------------------------------------------------------------------*/
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#ifndef linearSpring_H
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#define linearSpring_H
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#include <
forces/sixDoFRigidBodyMotionRestraint.H
>
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#include <
OpenFOAM/point.H
>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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namespace
sixDoFRigidBodyMotionRestraints
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{
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/*---------------------------------------------------------------------------*\
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Class linearSpring Declaration
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\*---------------------------------------------------------------------------*/
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class
linearSpring
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:
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public
sixDoFRigidBodyMotionRestraint
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{
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// Private data
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//- Anchor point, where the spring is attached to an immovable
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// object
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point
anchor_;
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//- Reference point of attachment to the solid body
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point
refAttachmentPt_;
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//- Spring stiffness coefficient (N/m)
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scalar stiffness_;
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//- Damping coefficient (Ns/m)
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scalar damping_;
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//- Rest length - length of spring when no forces are applied to it
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scalar restLength_;
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public
:
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//- Runtime type information
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TypeName
(
"linearSpring"
);
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// Constructors
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//- Construct from components
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linearSpring
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(
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const
dictionary
& sDoFRBMRDict
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);
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//- Construct and return a clone
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virtual
autoPtr<sixDoFRigidBodyMotionRestraint>
clone
()
const
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{
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return
autoPtr<sixDoFRigidBodyMotionRestraint>
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(
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new
linearSpring
(*
this
)
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);
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}
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// Destructor
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virtual
~linearSpring
();
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// Member Functions
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//- Calculate the restraint position, force and moment.
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// Global reference frame vectors.
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virtual
void
restrain
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(
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const
sixDoFRigidBodyMotion
& motion,
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vector
& restraintPosition,
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vector
& restraintForce,
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vector
& restraintMoment
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)
const
;
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//- Update properties from given dictionary
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virtual
bool
read
(
const
dictionary
& sDoFRBMRCoeff);
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//- Write
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virtual
void
write
(
Ostream
&)
const
;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace solidBodyMotionFunctions
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}
// End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************ vim: set sw=4 sts=4 et: ************************ //