deidynamic.h

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/*
 *
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 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2025   Borek Patzak
 *
 *
 *
 *       Czech Technical University, Faculty of Civil Engineering,
 *   Department of Structural Mechanics, 166 29 Prague, Czech Republic
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
#ifndef deidynamic_h
#define deidynamic_h
 
#include "sm/EngineeringModels/structengngmodel.h"


#define _IFT_DEIDynamic_Name "deidynamic"
#define _IFT_DEIDynamic_dumpcoef "dumpcoef"
#define _IFT_DEIDynamic_deltat "deltat"
 
namespace oofem {
class DEIDynamic : public StructuralEngngModel
{
protected:
    FloatArray massMatrix;
    FloatArray loadVector;
    FloatArray nextDisplacementVector;
    FloatArray displacementVector, velocityVector, accelerationVector;
    double dumpingCoef, deltaT;
 
public:
    DEIDynamic(int i, EngngModel *master = nullptr) : StructuralEngngModel(i, master), massMatrix(), loadVector(),
        nextDisplacementVector(), displacementVector(), velocityVector(), accelerationVector() {
        ndomains = 1;
    }
    virtual ~DEIDynamic();
 
    void solveYourselfAt(TimeStep *tStep) override;
 
    double giveUnknownComponent(ValueModeType type, TimeStep *tStep, Domain *d, Dof *dof) override;
    void initializeFrom(InputRecord &ir) override;
    TimeStep *giveNextStep() override;
    NumericalMethod *giveNumericalMethod(MetaStep *mStep) override;
 
    void printDofOutputAt(FILE *stream, Dof *iDof, TimeStep *tStep) override;
 
    // identification
    const char *giveClassName() const override { return "DEIDynamic"; }
    const char *giveInputRecordName() const { return _IFT_DEIDynamic_Name; }
    fMode giveFormulation() override { return TL; }
    int giveNumberOfFirstStep(bool force = false) override { return 0; }
};
} // end namespace oofem
#endif // deidynamic_h