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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 $
00022 // $Date: 2000/12/13 04:44:25 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/analysis/analysis/VariableTimeStepDirectIntegrationAnalysis.h,v $
00024                                                                         
00025                                                                         
00026 #ifndef VariableTimeStepDirectIntegrationAnalysis_h
00027 #define VariableTimeStepDirectIntegrationAnalysis_h
00028 
00029 // File: ~/analysis/analysis/VariableTimeStepDirectIntegrationAnalysis.h
00030 // 
00031 // Written: fmk 
00032 // Created: 10/00
00033 // Revision: A
00034 //
00035 // Description: This file contains the class definition for 
00036 // VariableTimeStepDirectIntegrationAnalysis. VariableTimeStepDirectIntegrationAnalysis 
00037 // is a subclass of DirectIntegrationAnalysis. It is used to perform a 
00038 // dynamic analysis on the FE\_Model using a direct integration scheme.  
00039 //
00040 // What: "@(#) VariableTimeStepDirectIntegrationAnalysis.h, revA"
00041 
00042 #include <DirectIntegrationAnalysis.h>
00043 
00044 #include <ConstraintHandler.h>
00045 #include <DOF_Numberer.h>
00046 #include <AnalysisModel.h>
00047 #include <TransientIntegrator.h>
00048 #include <LinearSOE.h>
00049 #include <EquiSolnAlgo.h>
00050 #include <ConvergenceTest.h>
00051 
00053 class VariableTimeStepDirectIntegrationAnalysis: public DirectIntegrationAnalysis
00054 {
00055   public:
00057     VariableTimeStepDirectIntegrationAnalysis(Domain &theDomain,
00058            ConstraintHandler &theHandler,
00059            DOF_Numberer &theNumberer,
00060            AnalysisModel &theModel,
00061            EquiSolnAlgo &theSolnAlgo,
00062            LinearSOE &theSOE,
00063            TransientIntegrator &theIntegrator);
00065     virtual ~VariableTimeStepDirectIntegrationAnalysis();
00066 
00068     int analyze(int numSteps, double dT, double dtMin, double dtMax, double perCent);
00069 
00070   protected:
00072     virtual double determineDt(double dT, double dtMin, double dtMax, double perCent,
00073           ConvergenceTest *theTest);
00074 
00075   private:
00076 };
00077 
00078 #endif
00079 
00080 ÿ