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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.1.1.1 $
00022 // $Date: 2000/09/15 08:23:16 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/analysis/fe_ele/transformation/TransformationFE.h,v $
00024                                                                         
00025                                                                         
00026 #ifndef TransformationFE_h
00027 #define TransformationFE_h
00028 
00029 // File: ~/analysis/fe_ele/transformation/TransformationFE.h
00030 // 
00031 // Written: fmk 
00032 // Created: 05/99
00033 // Revision: A
00034 //
00035 // Description: This file contains the class definition for TransformationFE.
00036 // TransformationFE objects handle MP_Constraints using the transformation
00037 // method T^t K T. SP_Constraints are handled by the TransformationConstraintHandler.
00038 //
00039 // What: "@(#) TransformationFE.h, revA"
00040 
00041 #include <FE_Element.h>
00042 #include <SP_Constraint.h>
00043 #include <DOF_Group.h>
00044 #include <TransformationConstraintHandler.h>
00045 
00061 class TransformationFE: public FE_Element
00062 {
00063   public:
00069     TransformationFE(Element *theElement, 
00070 
00071        TransformationConstraintHandler &theHandler);
00077     ~TransformationFE();    
00078 
00079 
00081     virtual const ID &getDOFtags(void) const;
00083     virtual const ID &getID(void) const;
00084 
00086     void setAnalysisModel(AnalysisModel &theModel);
00088     virtual int setID(void);
00089     
00091     virtual const Matrix &getTangent(Integrator *theIntegrator);
00093     virtual const Vector &getResidual(Integrator *theIntegrator);
00095     virtual void  addKtForce(const Vector &disp,  double fact = 1.0);
00097     virtual void  addKsForce(const Vector &disp,  double fact = 1.0);    
00099     virtual void  addKcForce(const Vector &disp,  double fact = 1.0);        
00101     virtual void  addKiForce(const Vector &disp,  double fact = 1.0);            
00103     virtual void  addD_Force(const Vector &vel,   double fact = 1.0);
00105     virtual void  addM_Force(const Vector &accel, double fact = 1.0);    
00106     
00108     virtual const Vector &getTangForce(const Vector &x, double fact = 1.0);
00110     virtual const Vector &getKtForce(const Vector &disp, double fcat = 1.0);
00112     virtual const Vector &getKsForce(const Vector &disp, double fcat = 1.0);    
00114     virtual const Vector &getD_Force(const Vector &vel, double fcat = 1.0);    
00116     virtual const Vector &getM_Force(const Vector &accel, double fcat = 1.0);
00118     virtual const Vector &getLastResponse(void);
00119 
00121     int addSP(SP_Constraint &theSP);
00122     
00123   protected:
00125     int transformResponse(const Vector &modResponse, Vector &unmodResponse);
00126     
00127   private:
00128     
00130     DOF_Group **theDOFs;
00132     int numSPs;
00134     SP_Constraint **theSPs;
00136     ID *modID;
00138     Matrix *modTangent;
00140     Vector *modResidual;
00142     int numGroups;
00144     int numEleNodalDOF;
00146     TransformationConstraintHandler *theHandler;
00147     
00149     static Matrix **modMatrices; 
00150     static Vector **modVectors;  
00151     static Matrix **theTransformations; 
00152     static int numTransFE;     
00153     static int transCounter;   
00154     static int sizeTransformations; 
00155     static double *dataBuffer;
00157     static double *localKbuffer;
00159     static int sizeBuffer;
00160 };
00161 
00162 #endif
00163 
00164 
00165 
00166