Initial commit for version 2.0.x patch release
[OpenFOAM-2.0.x.git] / src / postProcessing / functionObjects / forces / pointPatchFields / derived / sixDoFRigidBodyMotion / sixDoFRigidBodyMotionRestraint / sphericalAngularSpring / sphericalAngularSpring.H
blob5031f432b806a1cdbdd4a815b35de43bf81a6b4b
1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
4    \\    /   O peration     |
5     \\  /    A nd           | Copyright (C) 2010-2011 OpenCFD Ltd.
6      \\/     M anipulation  |
7 -------------------------------------------------------------------------------
8 License
9     This file is part of OpenFOAM.
11     OpenFOAM is free software: you can redistribute it and/or modify it
12     under the terms of the GNU General Public License as published by
13     the Free Software Foundation, either version 3 of the License, or
14     (at your option) any later version.
16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
19     for more details.
21     You should have received a copy of the GNU General Public License
22     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
24 Class
25     Foam::sixDoFRigidBodyMotionRestraints::sphericalAngularSpring
27 Description
28     sixDoFRigidBodyMotionRestraints model.  Spherical angular spring.
30 SourceFiles
31     sphericalAngularSpring.C
33 \*---------------------------------------------------------------------------*/
35 #ifndef sphericalAngularSpring_H
36 #define sphericalAngularSpring_H
38 #include "sixDoFRigidBodyMotionRestraint.H"
39 #include "point.H"
40 #include "tensor.H"
42 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
44 namespace Foam
47 namespace sixDoFRigidBodyMotionRestraints
50 /*---------------------------------------------------------------------------*\
51                    Class sphericalAngularSpring Declaration
52 \*---------------------------------------------------------------------------*/
54 class sphericalAngularSpring
56     public sixDoFRigidBodyMotionRestraint
58     // Private data
60         //- Reference orientation where there is no moment
61         tensor refQ_;
63         //- Spring stiffness coefficient (Nm/rad)
64         scalar stiffness_;
66         //- Damping coefficient (Nms/rad)
67         scalar damping_;
70 public:
72     //- Runtime type information
73     TypeName("sphericalAngularSpring");
76     // Constructors
78         //- Construct from components
79         sphericalAngularSpring
80         (
81             const dictionary& sDoFRBMRDict
82         );
84         //- Construct and return a clone
85         virtual autoPtr<sixDoFRigidBodyMotionRestraint> clone() const
86         {
87             return autoPtr<sixDoFRigidBodyMotionRestraint>
88             (
89                 new sphericalAngularSpring(*this)
90             );
91         }
94     //- Destructor
95     virtual ~sphericalAngularSpring();
98     // Member Functions
100         //- Calculate the restraint position, force and moment.
101         //  Global reference frame vectors.
102         virtual void restrain
103         (
104             const sixDoFRigidBodyMotion& motion,
105             vector& restraintPosition,
106             vector& restraintForce,
107             vector& restraintMoment
108         ) const;
110         //- Update properties from given dictionary
111         virtual bool read(const dictionary& sDoFRBMRCoeff);
113         //- Write
114         virtual void write(Ostream&) const;
118 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
120 } // End namespace solidBodyMotionFunctions
121 } // End namespace Foam
123 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
125 #endif
127 // ************************************************************************* //