00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd. 00006 \\/ M anipulation | 00007 ------------------------------------------------------------------------------- 00008 License 00009 This file is part of OpenFOAM. 00010 00011 OpenFOAM is free software: you can redistribute it and/or modify it 00012 under the terms of the GNU General Public License as published by 00013 the Free Software Foundation, either version 3 of the License, or 00014 (at your option) any later version. 00015 00016 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00018 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00019 for more details. 00020 00021 You should have received a copy of the GNU General Public License 00022 along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>. 00023 00024 Class 00025 Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring 00026 00027 Description 00028 sixDoFRigidBodyMotionRestraints model. Axial angular spring with moment 00029 values drawn from an interpolation table. Linear damping. 00030 00031 SourceFiles 00032 tabulatedAxialAngularSpring.C 00033 00034 \*---------------------------------------------------------------------------*/ 00035 00036 #ifndef tabulatedAxialAngularSpring_H 00037 #define tabulatedAxialAngularSpring_H 00038 00039 #include <forces/sixDoFRigidBodyMotionRestraint.H> 00040 #include <OpenFOAM/point.H> 00041 #include <OpenFOAM/tensor.H> 00042 #include <OpenFOAM/interpolationTable.H> 00043 00044 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00045 00046 namespace Foam 00047 { 00048 00049 namespace sixDoFRigidBodyMotionRestraints 00050 { 00051 00052 /*---------------------------------------------------------------------------*\ 00053 Class tabulatedAxialAngularSpring Declaration 00054 \*---------------------------------------------------------------------------*/ 00055 00056 class tabulatedAxialAngularSpring 00057 : 00058 public sixDoFRigidBodyMotionRestraint 00059 { 00060 // Private data 00061 00062 //- Reference orientation where there is no moment 00063 tensor refQ_; 00064 00065 //- Global unit axis around which the motion is sprung 00066 vector axis_; 00067 00068 //- Spring moment interpolation table, depending on angleFormat 00069 interpolationTable<scalar> moment_; 00070 00071 //- Boolean stating whether the angle around the axis needs to 00072 // be converted to degrees before asking the 00073 // interpolationTable for a moment value 00074 bool convertToDegrees_; 00075 00076 //- Damping coefficient (Nms/rad) 00077 scalar damping_; 00078 00079 00080 public: 00081 00082 //- Runtime type information 00083 TypeName("tabulatedAxialAngularSpring"); 00084 00085 00086 // Constructors 00087 00088 //- Construct from components 00089 tabulatedAxialAngularSpring 00090 ( 00091 const dictionary& sDoFRBMRDict 00092 ); 00093 00094 //- Construct and return a clone 00095 virtual autoPtr<sixDoFRigidBodyMotionRestraint> clone() const 00096 { 00097 return autoPtr<sixDoFRigidBodyMotionRestraint> 00098 ( 00099 new tabulatedAxialAngularSpring(*this) 00100 ); 00101 } 00102 00103 00104 // Destructor 00105 00106 virtual ~tabulatedAxialAngularSpring(); 00107 00108 00109 // Member Functions 00110 00111 //- Calculate the restraint position, force and moment. 00112 // Global reference frame vectors. 00113 virtual void restrain 00114 ( 00115 const sixDoFRigidBodyMotion& motion, 00116 vector& restraintPosition, 00117 vector& restraintForce, 00118 vector& restraintMoment 00119 ) const; 00120 00121 //- Update properties from given dictionary 00122 virtual bool read(const dictionary& sDoFRBMRCoeff); 00123 00124 //- Write 00125 virtual void write(Ostream&) const; 00126 }; 00127 00128 00129 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00130 00131 } // End namespace solidBodyMotionFunctions 00132 } // End namespace Foam 00133 00134 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00135 00136 #endif 00137 00138 // ************************ vim: set sw=4 sts=4 et: ************************ //
