LeeNewmarkIterative.h

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/*******************************************************************************
 * Copyright (C) 2017-2025 Theodore Chang
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
#ifndef LEENEWMARKITERATIVE_H
#define LEENEWMARKITERATIVE_H
 
#include "../Newmark.h"
 
#include <Domain/Factory.hpp>
#include <Domain/MetaMat/MetaMat.hpp>
 
class LeeNewmarkIterative final : public Newmark {
public:
    enum class Type {
        T0,
        T1,
        T2,
        T3,
        T4
    };
 
    struct Mode {
        Type t;
        vec p;
        double zeta, omega;
    };
 
private:
    unsigned n_block{0};
 
    std::vector<Mode> damping_mode;
 
    shared_ptr<Factory<double>> factory = nullptr;
 
    shared_ptr<MetaMat<double>> current_mass = nullptr;
    shared_ptr<MetaMat<double>> current_stiffness = nullptr;
 
    unique_ptr<MetaMat<double>> worker = nullptr;
 
    void init_worker(unsigned, unsigned);
 
    void assemble(const shared_ptr<MetaMat<double>>&, uword, uword, double) const;
 
    void assemble_mass(uword, uword, double) const;
    void assemble_stiffness(uword, uword, double) const;
    void assemble_mass(const std::vector<sword>&, const std::vector<sword>&, const std::vector<double>&) const;
    void assemble_stiffness(const std::vector<sword>&, const std::vector<sword>&, const std::vector<double>&) const;
 
    void formulate_block(sword&, double, double, int) const;
    void formulate_block(sword&, const std::vector<double>&, const std::vector<double>&, const std::vector<int>&) const;
 
    [[nodiscard]] vec update_by_mode_one(double, double, int) const;
    [[nodiscard]] vec update_by_mode_two(double, double, int, int);
    [[nodiscard]] vec update_by_mode_three(double, double, double);
    [[nodiscard]] vec update_by_mode_four(double, double, int, int, int, int, double);
 
    void update_damping_force();
 
public:
    LeeNewmarkIterative(unsigned, std::vector<Mode>&&, double, double);
 
    int initialize() override;
 
    [[nodiscard]] int process_constraint() override;
    [[nodiscard]] int process_constraint_resistance() override;
 
    void assemble_matrix() override;
 
    void print() override;
};
 
#endif