DOF_Group.hGo to the documentation of this file.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: 1.11 $ 00022 // $Date: 2005/11/28 21:40:46 $ 00023 // $Source: /usr/local/cvs/OpenSees/SRC/analysis/dof_grp/DOF_Group.h,v $ 00024 00025 00026 #ifndef DOF_Group_h 00027 #define DOF_Group_h 00028 00029 // File: ~/analysis/dof_grp/DOF_Group.h 00030 // 00031 // Written: fmk 00032 // Created: 11/96 00033 // Revision: A 00034 // 00035 // Description: This file contains the class definition for DOF_Group. 00036 // A DOF_Group object is instantiated by the ConstraintHandler for 00037 // every unconstrained node in the domain. The constrained nodes require 00038 // specialised types of DOF_Group; which deal with the constraints. DOF_Group 00039 // objects can handle 0 boundary constraints; if the eqn number of a DOF is 00040 // less than START_EQN_NUM a value of 0.0 is set for disp, vel and accel when 00041 // a setNode*(Vector &) is invoked. 00042 // 00043 // What: "@(#) DOF_Group.h, revA" 00044 00045 #include <ID.h> 00046 #include <TaggedObject.h> 00047 00048 class Node; 00049 class Vector; 00050 class Matrix; 00051 class TransientIntegrator; 00052 class Integrator; 00053 00054 class DOF_Group: public TaggedObject 00055 { 00056 public: 00057 DOF_Group(int tag, Node *myNode); 00058 DOF_Group(int tag, int ndof); 00059 virtual ~DOF_Group(); 00060 00061 virtual void setID(int dof, int value); 00062 virtual void setID(const ID &values); 00063 virtual const ID &getID(void) const; 00064 00065 virtual int getNodeTag(void) const; 00066 virtual int getNumDOF(void) const; 00067 virtual int getNumFreeDOF(void) const; 00068 virtual int getNumConstrainedDOF(void) const; 00069 00070 // methods to form the tangent 00071 virtual const Matrix &getTangent(Integrator *theIntegrator); 00072 virtual void zeroTangent(void); 00073 virtual void addMtoTang(double fact = 1.0); 00074 virtual void addCtoTang(double fact = 1.0); 00075 00076 // methods to form the unbalance 00077 virtual const Vector &getUnbalance(Integrator *theIntegrator); 00078 virtual void zeroUnbalance(void); 00079 virtual void addPtoUnbalance(double fact = 1.0); 00080 virtual void addPIncInertiaToUnbalance(double fact = 1.0); 00081 virtual void addM_Force(const Vector &Udotdot, double fact = 1.0); 00082 00083 virtual const Vector &getTangForce(const Vector &x, double fact = 1.0); 00084 virtual const Vector &getC_Force(const Vector &x, double fact = 1.0); 00085 virtual const Vector &getM_Force(const Vector &x, double fact = 1.0); 00086 00087 // methods to obtain committed responses from the nodes 00088 virtual const Vector & getCommittedDisp(void); 00089 virtual const Vector & getCommittedVel(void); 00090 virtual const Vector & getCommittedAccel(void); 00091 00092 // methods to update the trial response at the nodes 00093 virtual void setNodeDisp(const Vector &u); 00094 virtual void setNodeVel(const Vector &udot); 00095 virtual void setNodeAccel(const Vector &udotdot); 00096 00097 virtual void incrNodeDisp(const Vector &u); 00098 virtual void incrNodeVel(const Vector &udot); 00099 virtual void incrNodeAccel(const Vector &udotdot); 00100 00101 // methods to set the eigen vectors 00102 virtual void setEigenvector(int mode, const Vector &eigenvalue); 00103 00104 // method added for TransformationDOF_Groups 00105 virtual Matrix *getT(void); 00106 00107 // AddingSensitivity:BEGIN //////////////////////////////////// 00108 virtual void addM_ForceSensitivity(const Vector &Udotdot, double fact = 1.0); 00109 virtual void addD_ForceSensitivity(const Vector &vel, double fact = 1.0); 00110 virtual void addD_Force(const Vector &vel, double fact = 1.0); 00111 00112 virtual const Vector & getDispSensitivity(int gradNumber); 00113 virtual const Vector & getVelSensitivity(int gradNumber); 00114 virtual const Vector & getAccSensitivity(int gradNumber); 00115 virtual int saveSensitivity(Vector *v,Vector *vdot,Vector *vdotdot,int gradNum,int numGrads); 00116 // AddingSensitivity:END ////////////////////////////////////// 00117 virtual void Print(OPS_Stream&, int = 0) {return;}; 00118 virtual void resetNodePtr(void); 00119 00120 protected: 00121 void addLocalM_Force(const Vector &Udotdot, double fact = 1.0); 00122 00123 // protected variables - a copy for each object of the class 00124 Vector *unbalance; 00125 Matrix *tangent; 00126 Node *myNode; 00127 00128 private: 00129 // private variables - a copy for each object of the class 00130 ID myID; 00131 int numDOF; 00132 00133 // static variables - single copy for all objects of the class 00134 static Matrix errMatrix; 00135 static Vector errVect; 00136 static Matrix **theMatrices; // array of pointers to class wide matrices 00137 static Vector **theVectors; // array of pointers to class widde vectors 00138 static int numDOFs; // number of objects 00139 }; 00140 00141 #endif 00142
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