107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Module: FGMassBalance.cpp
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Author: Jon S. Berndt
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Date started: 09/12/2000
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Purpose: This module models weight and balance
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------------- Copyright (C) 2000 Jon S. Berndt (jsb@hal-pc.org) --------------
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place - Suite 330, Boston, MA 02111-1307, USA.
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Further information about the GNU General Public License can also be found on
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the world wide web at http://www.gnu.org.
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FUNCTIONAL DESCRIPTION
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--------------------------------------------------------------------------------
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This class models the change in weight and balance of the aircraft due to fuel
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burnoff, etc.
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HISTORY
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--------------------------------------------------------------------------------
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09/12/2000 JSB Created
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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INCLUDES
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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#include "FGMassBalance.h"
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static const char *IdSrc = "$Id$";
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static const char *IdHdr = ID_MASSBALANCE;
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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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CLASS IMPLEMENTATION
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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FGMassBalance::FGMassBalance(FGFDMExec* fdmex) : FGModel(fdmex)
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{
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Name = "FGMassBalance";
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if (debug_lvl & 2) cout << "Instantiated: FGMassBalance" << endl;
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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FGMassBalance::~FGMassBalance()
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{
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if (debug_lvl & 2) cout << "Destroyed: FGMassBalance" << endl;
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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bool FGMassBalance::Run(void)
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{
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if (!FGModel::Run()) {
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Weight = EmptyWeight + Propulsion->GetTanksWeight();
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Mass = Weight / Inertial->gravity();
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// Calculate new CG here.
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vXYZcg = (Propulsion->GetTanksCG() + EmptyWeight*vbaseXYZcg) / Weight;
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// Calculate new moments of inertia here
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Ixx = baseIxx + Propulsion->GetTanksIxx(vXYZcg);
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Iyy = baseIyy + Propulsion->GetTanksIyy(vXYZcg);
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Izz = baseIzz + Propulsion->GetTanksIzz(vXYZcg);
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Ixz = baseIxz + Propulsion->GetTanksIxz(vXYZcg);
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if (debug_lvl > 1) Debug();
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return false;
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} else {
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return true;
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}
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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void FGMassBalance::Debug(void)
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{
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if (debug_lvl & 16) { // Sanity check variables
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if (EmptyWeight <= 0.0 || EmptyWeight > 1e9)
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cout << "MassBalance::EmptyWeight out of bounds: " << EmptyWeight << endl;
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if (Weight <= 0.0 || Weight > 1e9)
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cout << "MassBalance::Weight out of bounds: " << Weight << endl;
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if (Mass <= 0.0 || Mass > 1e9)
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cout << "MassBalance::Mass out of bounds: " << Mass << endl;
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}
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}
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