ChVariablesBodyAddedMass.h

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// =============================================================================
// PROJECT CHRONO - http://projectchrono.org
//
// Copyright (c) 2014 projectchrono.org
// All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file at the top level of the distribution and at
// http://projectchrono.org/license-chrono.txt.
//
// =============================================================================
// Authors: Tristan de Lataillade
// =============================================================================
 
#ifndef CHVARIABLESBODYADDEDMASS_H
#define CHVARIABLESBODYADDEDMASS_H
 
#include "chrono/solver/ChVariablesBodyOwnMass.h"
 
namespace chrono {
 
 
        class ChApi ChVariablesBodyAddedMass : public ChVariablesBodyOwnMass {
 
        private:
                int ndof;
                ChMatrixDynamic<> Mmass;
                ChMatrixDynamic<> Maddedmass;
                ChMatrixDynamic<> Mfullmass;
                ChMatrixDynamic<> inv_Mfullmass;
 
        public:
                ChVariablesBodyAddedMass();
                virtual ~ChVariablesBodyAddedMass() {}
 
                ChVariablesBodyAddedMass& operator=(const ChVariablesBodyAddedMass& other);
 
                /* /// Access the inertia matrix */
                /* ChMatrix<>& GetMaddedmass() { return Maddedmass; } */
 
                /* /// Access the inertia matrix */
                /* ChMatrix<>& GetMmass() { return Mmass; } */
 
                void SetMfullmass(ChMatrixDynamic<>& Mfullmass_in);
 
                ChMatrixDynamic<>& GetMfullmass() { return Mfullmass; }
 
                ChMatrixDynamic<>& GetInvMfullmass() { return inv_Mfullmass; }
 
                /* /// Set the inertia matrix */
                /* void SetBodyInertia(const ChMatrix33<>& minertia); */
 
                /* /// Set the mass associated with translation of body */
                /* void SetBodyMass(const double mmass); */
 
    /* /// Get the mass associated with translation of body */
    /* virtual double GetBodyMass() const override { return ChVariablesBodyOwnMass::mmass; } */
 
    /* /// Access the 3x3 inertia matrix */
    /* virtual ChMatrix33<>& GetBodyInertia() override { return ChVariablesBodyOwnInertia::inertia; } */
 
                /* /// Set the mass associated with translation of body */
                /* void SetBodyAddedMass(ChMatrixDynamic<>& Maddedmass_in); */
    
                virtual void Compute_invMb_v(ChVectorRef result, const ChVectorConstRef vect) const override;
 
                virtual void Compute_inc_invMb_v(ChVectorRef result, const ChVectorConstRef vect) const override;
 
                virtual void Compute_inc_Mb_v(ChVectorRef result, const ChVectorConstRef vect) const override;
 
                virtual void MultiplyAndAdd(ChVectorRef result,
                        const ChVectorConstRef vect,
                        const double c_a) const override;
 
                virtual void DiagonalAdd(ChVectorRef result, const double c_a) const override;
 
                virtual void Build_M(ChSparseMatrix& storage, int insrow, int inscol, const double c_a) override;
 
};
 
 
}  // end namespace chrono
 
#endif