LagrangeDOF_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: 1.2 $ 00022 // $Date: 2004/10/12 21:52:25 $ 00023 // $Source: /usr/local/cvs/OpenSees/SRC/analysis/dof_grp/LagrangeDOF_Group.h,v $ 00024 00025 00026 #ifndef LagrangeDOF_Group_h 00027 #define LagrangeDOF_Group_h 00028 00029 // File: ~/analysis/dof_grp/LagrangeDOF_Group.h 00030 // 00031 // Written: fmk 00032 // Created: 02/99 00033 // Revision: A 00034 // 00035 // Description: This file contains the class definition for LagrangeDOF_Group. 00036 // A LagrangeDOF_Group object is instantiated by a LagrangeConstraintHandler for 00037 // every constrained node in the domain. 00038 // 00039 // What: "@(#) LagrangeDOF_Group.h, revA" 00040 00041 #include <DOF_Group.h> 00042 class SP_Constraint; 00043 class MP_Constraint; 00044 00045 class LagrangeDOF_Group: public DOF_Group 00046 { 00047 public: 00048 LagrangeDOF_Group(int tag, SP_Constraint &spPtr); 00049 LagrangeDOF_Group(int tag, MP_Constraint &mpPtr); 00050 virtual ~LagrangeDOF_Group(); 00051 00052 // methods to form the tangent 00053 virtual const Matrix &getTangent(Integrator *theIntegrator); 00054 00055 // methods to form the unbalance 00056 virtual const Vector &getUnbalance(Integrator *theIntegrator); 00057 00058 // methods to obtain committed responses .. always 0 00059 virtual const Vector &getCommittedDisp(void); 00060 virtual const Vector &getCommittedVel(void); 00061 virtual const Vector &getCommittedAccel(void); 00062 00063 // methods to update the trial response at the nodes 00064 virtual void setNodeDisp(const Vector &u); 00065 virtual void setNodeVel(const Vector &udot); 00066 virtual void setNodeAccel(const Vector &udotdot); 00067 00068 virtual void incrNodeDisp(const Vector &u); 00069 virtual void incrNodeVel(const Vector &udot); 00070 virtual void incrNodeAccel(const Vector &udotdot); 00071 00072 virtual void zeroTangent(void); 00073 virtual void addMtoTang(double fact = 1.0); 00074 virtual void zeroUnbalance(void); 00075 virtual void addPtoUnbalance(double fact = 1.0); 00076 virtual void addPIncInertiaToUnbalance(double fact = 1.0); 00077 virtual void addM_Force(const Vector &Udotdot, double fact = 1.0); 00078 00079 virtual const Vector &getTangForce(const Vector &x, double fact = 1.0); 00080 virtual const Vector &getC_Force(const Vector &x, double fact = 1.0); 00081 virtual const Vector &getM_Force(const Vector &x, double fact = 1.0); 00082 00083 protected: 00084 00085 private: 00086 00087 }; 00088 00089 #endif 00090
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