Node.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: 1.10 $ 00022 // $Date: 2006/09/05 20:46:04 $ 00023 // $Source: /usr/local/cvs/OpenSees/SRC/domain/node/Node.h,v $ 00024 00025 00026 #ifndef Node_h 00027 #define Node_h 00028 00029 // Written: fmk 00030 // Created: 11/96 00031 // Revision: A 00032 // 00033 // Purpose: This file contains the class interface for Node. 00034 // A Node provides the abstraction for a node in the FEM. 00035 // Nodes have original position, trial displacement, velocity and 00036 // acceleration and committed displacement, velocity and acceleration 00037 // (the last committed() trial quantities). 00038 // 00039 // What: "@(#) Node.h, revA" 00040 00041 #include <DomainComponent.h> 00042 class Element; 00043 class Vector; 00044 class Matrix; 00045 class Channel; 00046 class Renderer; 00047 00048 class DOF_Group; 00049 00050 class Node : public DomainComponent 00051 { 00052 public: 00053 // constructors 00054 Node(int classTag); 00055 Node(int tag, int classTag); 00056 Node(int tag, int ndof, double Crd1); 00057 Node(int tag, int ndof, double Crd1, double Crd2); 00058 Node(int tag, int ndof, double Crd1, double Crd2, double Crd3); 00059 Node(const Node &theCopy, bool copyMass = true); 00060 00061 // destructor 00062 virtual ~Node(); 00063 00064 // public methods dealing with the DOF at the node 00065 virtual int getNumberDOF(void) const; 00066 virtual void setDOF_GroupPtr(DOF_Group *theDOF_Grp); 00067 virtual DOF_Group *getDOF_GroupPtr(void); 00068 00069 // public methods for obtaining the nodal coordinates 00070 virtual const Vector &getCrds(void) const; 00071 00072 // public methods for obtaining committed and trial 00073 // response quantities of the node 00074 virtual const Vector &getDisp(void); 00075 virtual const Vector &getVel(void); 00076 virtual const Vector &getAccel(void); 00077 virtual const Vector &getIncrDisp(void); 00078 virtual const Vector &getIncrDeltaDisp(void); 00079 00080 virtual const Vector &getTrialDisp(void); 00081 virtual const Vector &getTrialVel(void); 00082 virtual const Vector &getTrialAccel(void); 00083 00084 // public methods for updating the trial response quantities 00085 virtual int setTrialDisp(double value, int dof); 00086 virtual int setTrialDisp(const Vector &); 00087 virtual int setTrialVel(const Vector &); 00088 virtual int setTrialAccel(const Vector &); 00089 00090 virtual int incrTrialDisp(const Vector &); 00091 virtual int incrTrialVel(const Vector &); 00092 virtual int incrTrialAccel(const Vector &); 00093 00094 // public methods for adding and obtaining load information 00095 virtual void zeroUnbalancedLoad(void); 00096 virtual int addUnbalancedLoad(const Vector &load, double fact = 1.0); 00097 virtual int addInertiaLoadToUnbalance(const Vector &accel, double fact = 1.0); 00098 virtual const Vector &getUnbalancedLoad(void); 00099 virtual const Vector &getUnbalancedLoadIncInertia(void); 00100 00101 // public methods dealing with the committed state of the node 00102 virtual int commitState(); 00103 virtual int revertToLastCommit(); 00104 virtual int revertToStart(); 00105 00106 // public methods for dynamic analysis 00107 virtual const Matrix &getMass(void); 00108 virtual int setMass(const Matrix &theMass); 00109 virtual int setNumColR(int numCol); 00110 virtual int setR(int row, int col, double Value); 00111 virtual const Vector &getRV(const Vector &V); 00112 00113 virtual int setRayleighDampingFactor(double alphaM); 00114 virtual const Matrix &getDamp(void); 00115 00116 // public methods for eigen vector 00117 virtual int setNumEigenvectors(int numVectorsToStore); 00118 virtual int setEigenvector(int mode, const Vector &eigenVector); 00119 virtual const Matrix &getEigenvectors(void); 00120 00121 // public methods for output 00122 virtual int sendSelf(int commitTag, Channel &theChannel); 00123 virtual int recvSelf(int commitTag, Channel &theChannel, 00124 FEM_ObjectBroker &theBroker); 00125 virtual void Print(OPS_Stream &s, int flag = 0); 00126 virtual int displaySelf(Renderer &theRenderer, int displayMode, float fact); 00127 00128 // AddingSensitivity:BEGIN ///////////////////////////////////////// 00129 int addInertiaLoadSensitivityToUnbalance(const Vector &accel, 00130 double fact = 1.0, 00131 bool tag=false); 00132 Matrix getMassSensitivity(void); 00133 virtual const Matrix &getDampSensitivity(void); 00134 int getCrdsSensitivity(void); 00135 int saveSensitivity(Vector *v, Vector *vdot, Vector *vdotdot, int gradNum, int numGrads); 00136 double getDispSensitivity(int dof, int gradNum); 00137 double getVelSensitivity(int dof, int gradNum); 00138 double getAccSensitivity(int dof, int gradNum); 00139 int setParameter(const char **argv, int argc, Parameter ¶m); 00140 int updateParameter(int parameterID, Information &info); 00141 int activateParameter(int parameterID); 00142 00143 virtual const Vector &getReaction(); 00144 virtual int addReactionForce(const Vector &, double factor); 00145 virtual int resetReactionForce(bool inclInertia); 00146 // AddingSensitivity:END /////////////////////////////////////////// 00147 00148 private: 00149 // priavte methods used to create the Vector objects 00150 // for the committed and trial response quantaties. 00151 int createDisp(void); 00152 int createVel(void); 00153 int createAccel(void); 00154 00155 // private data associated with each node object 00156 int numberDOF; // number of dof at Node 00157 DOF_Group *theDOF_GroupPtr; // pointer to associated DOF_Group 00158 Vector *Crd; // original nodal coords 00159 Vector *commitDisp, *commitVel, *commitAccel; // commited quantities 00160 Vector *trialDisp, *trialVel, *trialAccel; // trial quantities 00161 Vector *unbalLoad; // unbalanced load 00162 Vector *incrDisp; 00163 Vector *incrDeltaDisp; 00164 00165 double *disp, *vel, *accel; // double arrays holding the displ, 00166 // vel and accel values 00167 00168 int dbTag1, dbTag2, dbTag3, dbTag4; // needed for database 00169 Matrix *R; // nodal participation matrix 00170 Matrix *mass; // pointer to mass matrix 00171 Vector *unbalLoadWithInertia; 00172 double alphaM; // rayleigh damping factor 00173 00174 Matrix *theEigenvectors; 00175 00176 // AddingSensitivity:BEGIN ///////////////////////////////////////// 00177 Matrix *dispSensitivity; 00178 Matrix *velSensitivity; 00179 Matrix *accSensitivity; 00180 int parameterID; 00181 // AddingSensitivity:END /////////////////////////////////////////// 00182 00183 static Matrix **theMatrices; 00184 static int numMatrices; 00185 int index; 00186 00187 Vector *reaction; 00188 }; 00189 00190 #endif 00191
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