-/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
- Module: FGPropulsion.cpp\r
- Author: Jon S. Berndt\r
- Date started: 08/20/00\r
- Purpose: Encapsulates the set of engines, tanks, and thrusters associated\r
- with this aircraft\r
-\r
- ------------- Copyright (C) 2000 Jon S. Berndt (jsb@hal-pc.org) -------------\r
-\r
- This program is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License as published by the Free Software\r
- Foundation; either version 2 of the License, or (at your option) any later\r
- version.\r
-\r
- This program is distributed in the hope that it will be useful, but WITHOUT\r
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
- FOR A PARTICULAR PURPOSE. See the GNU General Public License for more\r
- details.\r
-\r
- You should have received a copy of the GNU General Public License along with\r
- this program; if not, write to the Free Software Foundation, Inc., 59 Temple\r
- Place - Suite 330, Boston, MA 02111-1307, USA.\r
-\r
- Further information about the GNU General Public License can also be found on\r
- the world wide web at http://www.gnu.org.\r
-\r
-FUNCTIONAL DESCRIPTION\r
---------------------------------------------------------------------------------\r
-The Propulsion class is the container for the entire propulsion system, which is\r
-comprised of engines, tanks, and "thrusters" (the device that transforms the\r
-engine power into a force that acts on the aircraft, such as a nozzle or\r
-propeller). Once the Propulsion class gets the config file, it reads in\r
-information which is specific to a type of engine. Then:\r
-\r
-1) The appropriate engine type instance is created\r
-2) A thruster object is instantiated, and is linked to the engine\r
-3) At least one tank object is created, and is linked to an engine.\r
-\r
-At Run time each engines Calculate() method is called to return the excess power\r
-generated during that iteration. The drag from the previous iteration is sub-\r
-tracted to give the excess power available for thrust this pass. That quantity\r
-is passed to the thrusters associated with a particular engine - perhaps with a\r
-scaling mechanism (gearing?) to allow the engine to give its associated thrust-\r
-ers specific distributed portions of the excess power.\r
-\r
-HISTORY\r
---------------------------------------------------------------------------------\r
-08/20/00 JSB Created\r
-\r
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-INCLUDES\r
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/\r
-\r
-#include "FGPropulsion.h"\r
-#include "FGPropertyManager.h"\r
-\r
-\r
-static const char *IdSrc = "$Id$";\r
-static const char *IdHdr = ID_PROPULSION;\r
-\r
-extern short debug_lvl;\r
-\r
-#if defined (__APPLE__)\r
-/* Not all systems have the gcvt function */\r
-inline char* gcvt (double value, int ndigits, char *buf) {\r
- /* note that this is not exactly what gcvt is supposed to do! */\r
- snprintf (buf, ndigits+1, "%f", value);\r
- return buf;\r
-}\r
-#endif\r
-\r
-\r
-/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-CLASS IMPLEMENTATION\r
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/\r
-\r
-FGPropulsion::FGPropulsion(FGFDMExec* exec) : FGModel(exec)\r
-{\r
- Name = "FGPropulsion";\r
- numSelectedFuelTanks = numSelectedOxiTanks = 0;\r
- numTanks = numEngines = numThrusters = 0;\r
- numOxiTanks = numFuelTanks = 0;\r
- dt = 0.0;\r
- ActiveEngine = -1; // -1: ALL, 0: Engine 1, 1: Engine 2 ...\r
- bind();\r
- Debug(0);\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-FGPropulsion::~FGPropulsion()\r
-{\r
- for (unsigned int i=0; i<Engines.size(); i++) delete Engines[i];\r
- Engines.clear();\r
- unbind();\r
- Debug(1);\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-bool FGPropulsion::Run(void)\r
-{\r
- double PowerAvailable;\r
- dt = State->Getdt();\r
-\r
- vForces.InitMatrix();\r
- vMoments.InitMatrix();\r
-\r
- if (!FGModel::Run()) {\r
- for (unsigned int i=0; i<numEngines; i++) {\r
- Thrusters[i]->SetdeltaT(dt*rate);\r
- PowerAvailable = Engines[i]->Calculate(Thrusters[i]->GetPowerRequired());\r
- Thrusters[i]->Calculate(PowerAvailable);\r
- vForces += Thrusters[i]->GetBodyForces(); // sum body frame forces\r
- vMoments += Thrusters[i]->GetMoments(); // sum body frame moments\r
- }\r
- return false;\r
- } else {\r
- return true;\r
- }\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-bool FGPropulsion::GetSteadyState(void)\r
-{\r
- double PowerAvailable;\r
- double currentThrust = 0, lastThrust=-1;\r
- dt = State->Getdt();\r
- int steady_count,j=0;\r
- bool steady=false;\r
-\r
- vForces.InitMatrix();\r
- vMoments.InitMatrix();\r
-\r
- if (!FGModel::Run()) {\r
- for (unsigned int i=0; i<numEngines; i++) {\r
- Engines[i]->SetTrimMode(true);\r
- Thrusters[i]->SetdeltaT(dt*rate);\r
- steady=false;\r
- steady_count=0;\r
- while (!steady && j < 6000) {\r
- PowerAvailable = Engines[i]->Calculate(Thrusters[i]->GetPowerRequired());\r
- lastThrust = currentThrust;\r
- currentThrust = Thrusters[i]->Calculate(PowerAvailable);\r
- if (fabs(lastThrust-currentThrust) < 0.0001) {\r
- steady_count++;\r
- if (steady_count > 120) { steady=true; }\r
- } else {\r
- steady_count=0;\r
- }\r
- j++; \r
- }\r
- vForces += Thrusters[i]->GetBodyForces(); // sum body frame forces\r
- vMoments += Thrusters[i]->GetMoments(); // sum body frame moments\r
- Engines[i]->SetTrimMode(false);\r
- }\r
-\r
- return false;\r
- } else {\r
- return true;\r
- }\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-bool FGPropulsion::ICEngineStart(void)\r
-{\r
- double PowerAvailable;\r
- int j;\r
- dt = State->Getdt();\r
-\r
- vForces.InitMatrix();\r
- vMoments.InitMatrix();\r
- \r
- for (unsigned int i=0; i<numEngines; i++) {\r
- Engines[i]->SetTrimMode(true);\r
- Thrusters[i]->SetdeltaT(dt*rate);\r
- j=0;\r
- while (!Engines[i]->GetRunning() && j < 2000) {\r
- PowerAvailable = Engines[i]->Calculate(Thrusters[i]->GetPowerRequired());\r
- Thrusters[i]->Calculate(PowerAvailable);\r
- j++; \r
- }\r
- vForces += Thrusters[i]->GetBodyForces(); // sum body frame forces\r
- vMoments += Thrusters[i]->GetMoments(); // sum body frame moments\r
- Engines[i]->SetTrimMode(false);\r
- }\r
- return true;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-bool FGPropulsion::Load(FGConfigFile* AC_cfg)\r
-{\r
- string token, fullpath;\r
- string engineFileName, engType;\r
- string thrusterFileName, thrType;\r
- string parameter;\r
- string enginePath = FDMExec->GetEnginePath();\r
- double xLoc, yLoc, zLoc, Pitch, Yaw;\r
- double P_Factor = 0, Sense = 0.0;\r
- int Feed;\r
- bool ThrottleAdded = false;\r
-\r
-# ifndef macintosh\r
- fullpath = enginePath + "/";\r
-# else\r
- fullpath = enginePath + ";";\r
-# endif\r
-\r
- AC_cfg->GetNextConfigLine();\r
-\r
- while ((token = AC_cfg->GetValue()) != string("/PROPULSION")) {\r
-\r
- if (token == "AC_ENGINE") { // ============ READING ENGINES\r
-\r
- engineFileName = AC_cfg->GetValue("FILE");\r
-\r
- if (debug_lvl > 0) cout << "\n Reading engine from file: " << fullpath\r
- + engineFileName + ".xml"<< endl;\r
- FGConfigFile Eng_cfg(fullpath + engineFileName + ".xml");\r
-\r
- if (Eng_cfg.IsOpen()) {\r
- Eng_cfg.GetNextConfigLine();\r
- engType = Eng_cfg.GetValue();\r
-\r
- FCS->AddThrottle();\r
- ThrottleAdded = true;\r
-\r
- if (engType == "FG_ROCKET") {\r
- Engines.push_back(new FGRocket(FDMExec, &Eng_cfg));\r
- } else if (engType == "FG_PISTON") {\r
- Engines.push_back(new FGPiston(FDMExec, &Eng_cfg));\r
- } else if (engType == "FG_TURBOJET") {\r
- Engines.push_back(new FGTurboJet(FDMExec, &Eng_cfg));\r
- } else if (engType == "FG_TURBOSHAFT") {\r
- Engines.push_back(new FGTurboShaft(FDMExec, &Eng_cfg));\r
- } else if (engType == "FG_TURBOPROP") {\r
- Engines.push_back(new FGTurboProp(FDMExec, &Eng_cfg));\r
- } else {\r
- cerr << fgred << " Unrecognized engine type: " << underon << engType\r
- << underoff << " found in config file." << fgdef << endl;\r
- return false;\r
- }\r
-\r
- AC_cfg->GetNextConfigLine();\r
- while ((token = AC_cfg->GetValue()) != string("/AC_ENGINE")) {\r
- *AC_cfg >> token;\r
- if (token == "XLOC") { *AC_cfg >> xLoc; }\r
- else if (token == "YLOC") { *AC_cfg >> yLoc; }\r
- else if (token == "ZLOC") { *AC_cfg >> zLoc; }\r
- else if (token == "PITCH") { *AC_cfg >> Pitch;}\r
- else if (token == "YAW") { *AC_cfg >> Yaw;}\r
- else if (token == "FEED") {\r
- *AC_cfg >> Feed;\r
- Engines[numEngines]->AddFeedTank(Feed);\r
- if (debug_lvl > 0) cout << " Feed tank: " << Feed << endl;\r
- } else cerr << "Unknown identifier: " << token << " in engine file: "\r
- << engineFileName << endl;\r
- }\r
-\r
- if (debug_lvl > 0) {\r
- cout << " X = " << xLoc << endl;\r
- cout << " Y = " << yLoc << endl;\r
- cout << " Z = " << zLoc << endl;\r
- cout << " Pitch = " << Pitch << endl;\r
- cout << " Yaw = " << Yaw << endl;\r
- }\r
-\r
- Engines[numEngines]->SetPlacement(xLoc, yLoc, zLoc, Pitch, Yaw);\r
- Engines[numEngines]->SetEngineNumber(numEngines);\r
- numEngines++;\r
-\r
- } else {\r
-\r
- cerr << fgred << "\n Could not read engine config file: " << underon <<\r
- fullpath + engineFileName + ".xml" << underoff << fgdef << endl;\r
- return false;\r
- }\r
-\r
- } else if (token == "AC_TANK") { // ============== READING TANKS\r
-\r
- if (debug_lvl > 0) cout << "\n Reading tank definition" << endl;\r
- Tanks.push_back(new FGTank(AC_cfg));\r
- switch(Tanks[numTanks]->GetType()) {\r
- case FGTank::ttFUEL:\r
- numSelectedFuelTanks++;\r
- numFuelTanks++;\r
- break;\r
- case FGTank::ttOXIDIZER:\r
- numSelectedOxiTanks++;\r
- numOxiTanks++;\r
- break;\r
- }\r
-\r
- numTanks++;\r
-\r
- } else if (token == "AC_THRUSTER") { // ========== READING THRUSTERS\r
-\r
- thrusterFileName = AC_cfg->GetValue("FILE");\r
-\r
- if (debug_lvl > 0) cout << "\n Reading thruster from file: " <<\r
- fullpath + thrusterFileName + ".xml" << endl;\r
- FGConfigFile Thruster_cfg(fullpath + thrusterFileName + ".xml");\r
-\r
- if (Thruster_cfg.IsOpen()) {\r
- Thruster_cfg.GetNextConfigLine();\r
- thrType = Thruster_cfg.GetValue();\r
-\r
- if (thrType == "FG_PROPELLER") {\r
- Thrusters.push_back(new FGPropeller(FDMExec, &Thruster_cfg));\r
- } else if (thrType == "FG_NOZZLE") {\r
- Thrusters.push_back(new FGNozzle(FDMExec, &Thruster_cfg));\r
- }\r
-\r
- AC_cfg->GetNextConfigLine();\r
- while ((token = AC_cfg->GetValue()) != string("/AC_THRUSTER")) {\r
- *AC_cfg >> token;\r
- if (token == "XLOC") *AC_cfg >> xLoc;\r
- else if (token == "YLOC") *AC_cfg >> yLoc;\r
- else if (token == "ZLOC") *AC_cfg >> zLoc;\r
- else if (token == "PITCH") *AC_cfg >> Pitch;\r
- else if (token == "YAW") *AC_cfg >> Yaw;\r
- else if (token == "P_FACTOR") *AC_cfg >> P_Factor;\r
- else if (token == "SENSE") *AC_cfg >> Sense;\r
- else cerr << "Unknown identifier: " << token << " in engine file: "\r
- << engineFileName << endl;\r
- }\r
-\r
- Thrusters[numThrusters]->SetLocation(xLoc, yLoc, zLoc);\r
- Thrusters[numThrusters]->SetAnglesToBody(0, Pitch, Yaw);\r
- if (thrType == "FG_PROPELLER" && P_Factor > 0.001) {\r
- ((FGPropeller*)Thrusters[numThrusters])->SetPFactor(P_Factor);\r
- if (debug_lvl > 0) cout << " P-Factor: " << P_Factor << endl;\r
- ((FGPropeller*)Thrusters[numThrusters])->SetSense(fabs(Sense)/Sense);\r
- if (debug_lvl > 0) cout << " Sense: " << Sense << endl;\r
- }\r
- Thrusters[numThrusters]->SetdeltaT(dt*rate);\r
- Thrusters[numThrusters]->SetThrusterNumber(numThrusters);\r
- numThrusters++;\r
-\r
- } else {\r
- cerr << "Could not read thruster config file: " << fullpath\r
- + thrusterFileName + ".xml" << endl;\r
- return false;\r
- }\r
-\r
- }\r
- AC_cfg->GetNextConfigLine();\r
- }\r
-\r
- if (!ThrottleAdded) FCS->AddThrottle(); // need to have at least one throttle\r
-\r
- return true;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-string FGPropulsion::GetPropulsionStrings(void)\r
-{\r
- string PropulsionStrings = "";\r
- bool firstime = true;\r
- char buffer[5];\r
-\r
- for (unsigned int i=0;i<Engines.size();i++) {\r
- if (firstime) firstime = false;\r
- else PropulsionStrings += ", ";\r
-\r
- sprintf(buffer, "%d", i);\r
-\r
- switch(Engines[i]->GetType()) {\r
- case FGEngine::etPiston:\r
- PropulsionStrings += (Engines[i]->GetName() + "_PwrAvail[" + buffer + "]");\r
- break;\r
- case FGEngine::etRocket:\r
- PropulsionStrings += (Engines[i]->GetName() + "_ChamberPress[" + buffer + "]");\r
- break;\r
- case FGEngine::etTurboJet:\r
- case FGEngine::etTurboProp:\r
- case FGEngine::etTurboShaft:\r
- break;\r
- default:\r
- PropulsionStrings += "INVALID ENGINE TYPE";\r
- break;\r
- }\r
-\r
- PropulsionStrings += ", ";\r
-\r
- FGPropeller* Propeller = (FGPropeller*)Thrusters[i];\r
- switch(Thrusters[i]->GetType()) {\r
- case FGThruster::ttNozzle:\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_Thrust[" + buffer + "]");\r
- break;\r
- case FGThruster::ttRotor:\r
- break;\r
- case FGThruster::ttPropeller:\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_Torque[" + buffer + "], ");\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_PFactor_Roll[" + buffer + "], ");\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_PFactor_Pitch[" + buffer + "], ");\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_PFactor_Yaw[" + buffer + "], ");\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_Thrust[" + buffer + "], ");\r
- if (Propeller->IsVPitch())\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_Pitch[" + buffer + "], ");\r
- PropulsionStrings += (Thrusters[i]->GetName() + "_RPM[" + buffer + "]");\r
- break;\r
- default:\r
- PropulsionStrings += "INVALID THRUSTER TYPE";\r
- break;\r
- } \r
- }\r
-\r
- return PropulsionStrings;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-string FGPropulsion::GetPropulsionValues(void)\r
-{\r
- char buff[20];\r
- string PropulsionValues = "";\r
- bool firstime = true;\r
-\r
- for (unsigned int i=0;i<Engines.size();i++) {\r
- if (firstime) firstime = false;\r
- else PropulsionValues += ", ";\r
-\r
- switch(Engines[i]->GetType()) {\r
- case FGEngine::etPiston:\r
- PropulsionValues += (string(gcvt(((FGPiston*)Engines[i])->GetPowerAvailable(), 10, buff)));\r
- break;\r
- case FGEngine::etRocket:\r
- PropulsionValues += (string(gcvt(((FGRocket*)Engines[i])->GetChamberPressure(), 10, buff)));\r
- break;\r
- case FGEngine::etTurboJet:\r
- case FGEngine::etTurboProp:\r
- case FGEngine::etTurboShaft:\r
- break;\r
- }\r
-\r
- PropulsionValues += ", ";\r
-\r
- switch(Thrusters[i]->GetType()) {\r
- case FGThruster::ttNozzle:\r
- PropulsionValues += (string(gcvt(((FGNozzle*)Thrusters[i])->GetThrust(), 10, buff)));\r
- break;\r
- case FGThruster::ttRotor:\r
- break;\r
- case FGThruster::ttPropeller:\r
- FGPropeller* Propeller = (FGPropeller*)Thrusters[i];\r
- FGColumnVector3 vPFactor = Propeller->GetPFactor();\r
- PropulsionValues += string(gcvt(Propeller->GetTorque(), 10, buff)) + ", ";\r
- PropulsionValues += string(gcvt(vPFactor(eRoll), 10, buff)) + ", ";\r
- PropulsionValues += string(gcvt(vPFactor(ePitch), 10, buff)) + ", ";\r
- PropulsionValues += string(gcvt(vPFactor(eYaw), 10, buff)) + ", ";\r
- PropulsionValues += string(gcvt(Propeller->GetThrust(), 10, buff)) + ", ";\r
- if (Propeller->IsVPitch())\r
- PropulsionValues += string(gcvt(Propeller->GetPitch(), 10, buff)) + ", ";\r
- PropulsionValues += string(gcvt(Propeller->GetRPM(), 10, buff));\r
- break;\r
- }\r
- }\r
-\r
- return PropulsionValues;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-FGColumnVector3& FGPropulsion::GetTanksMoment(void)\r
-{\r
- iTank = Tanks.begin();\r
- vXYZtank.InitMatrix();\r
- while (iTank < Tanks.end()) {\r
- vXYZtank(eX) += (*iTank)->GetX()*(*iTank)->GetContents();\r
- vXYZtank(eY) += (*iTank)->GetY()*(*iTank)->GetContents();\r
- vXYZtank(eZ) += (*iTank)->GetZ()*(*iTank)->GetContents();\r
- iTank++;\r
- }\r
- return vXYZtank;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-double FGPropulsion::GetTanksWeight(void)\r
-{\r
- double Tw = 0.0;\r
-\r
- iTank = Tanks.begin();\r
- while (iTank < Tanks.end()) {\r
- Tw += (*iTank)->GetContents();\r
- iTank++;\r
- }\r
- return Tw;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-double FGPropulsion::GetTanksIxx(const FGColumnVector3& vXYZcg)\r
-{\r
- double I = 0.0;\r
- iTank = Tanks.begin();\r
- while (iTank < Tanks.end()) {\r
- I += ((*iTank)->GetX() - vXYZcg(eX))*((*iTank)->GetX() - vXYZcg(eX)) * (*iTank)->GetContents()/(144.0*Inertial->gravity());\r
- iTank++;\r
- }\r
- return I;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-double FGPropulsion::GetTanksIyy(const FGColumnVector3& vXYZcg)\r
-{\r
- double I = 0.0;\r
- iTank = Tanks.begin();\r
- while (iTank < Tanks.end()) {\r
- I += ((*iTank)->GetY() - vXYZcg(eY))*((*iTank)->GetY() - vXYZcg(eY)) * (*iTank)->GetContents()/(144.0*Inertial->gravity());\r
- iTank++;\r
- }\r
- return I;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-double FGPropulsion::GetTanksIzz(const FGColumnVector3& vXYZcg)\r
-{\r
- double I = 0.0;\r
- iTank = Tanks.begin();\r
- while (iTank < Tanks.end()) {\r
- I += ((*iTank)->GetZ() - vXYZcg(eZ))*((*iTank)->GetZ() - vXYZcg(eZ)) * (*iTank)->GetContents()/(144.0*Inertial->gravity());\r
- iTank++;\r
- }\r
- return I;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-double FGPropulsion::GetTanksIxz(const FGColumnVector3& vXYZcg)\r
-{\r
- double I = 0.0;\r
- iTank = Tanks.begin();\r
- while (iTank < Tanks.end()) {\r
- I += ((*iTank)->GetX() - vXYZcg(eX))*((*iTank)->GetZ() - vXYZcg(eZ)) * (*iTank)->GetContents()/(144.0*Inertial->gravity());\r
- iTank++;\r
- }\r
- return I;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-double FGPropulsion::GetTanksIxy(const FGColumnVector3& vXYZcg)\r
-{\r
- double I = 0.0;\r
- iTank = Tanks.begin();\r
- while (iTank != Tanks.end()) {\r
- I += ((*iTank)->GetX() - vXYZcg(eX))*((*iTank)->GetY() - vXYZcg(eY)) * (*iTank)->GetContents()/(144.0*Inertial->gravity());\r
- iTank++;\r
- }\r
- return I;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-void FGPropulsion::SetMagnetos(int setting)\r
-{\r
- if (ActiveEngine == -1) {\r
- for (unsigned i=0; i<Engines.size(); i++) {\r
- Engines[i]->SetMagnetos(setting);\r
- }\r
- } else {\r
- Engines[ActiveEngine]->SetMagnetos(setting);\r
- }\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-void FGPropulsion::SetStarter(int setting)\r
-{\r
- if (ActiveEngine == -1) {\r
- for (unsigned i=0; i<Engines.size(); i++) {\r
- Engines[i]->SetStarter(setting);\r
- }\r
- } else {\r
- if (setting == 0)\r
- Engines[ActiveEngine]->SetStarter(false);\r
- else\r
- Engines[ActiveEngine]->SetStarter(true);\r
- }\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-void FGPropulsion::SetActiveEngine(int engine)\r
-{\r
- if ( unsigned(engine) > Engines.size())\r
- ActiveEngine = -1;\r
- else\r
- ActiveEngine = engine;\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-void FGPropulsion::bind(void)\r
-{\r
- typedef double (FGPropulsion::*PMF)(int) const;\r
- typedef int (FGPropulsion::*iPMF)(void) const;\r
- /* PropertyManager->Tie("propulsion/num-engines", this,\r
- &FGPropulsion::GetNumEngines);\r
- PropertyManager->Tie("propulsion/num-tanks", this,\r
- &FGPropulsion::GetNumTanks); */\r
-\r
- PropertyManager->Tie("propulsion/magneto_cmd", this,\r
- (iPMF)0,\r
- &FGPropulsion::SetMagnetos,\r
- true);\r
- PropertyManager->Tie("propulsion/starter_cmd", this,\r
- (iPMF)0,\r
- &FGPropulsion::SetStarter,\r
- true);\r
- PropertyManager->Tie("propulsion/active_engine", this,\r
- (iPMF)0,\r
- &FGPropulsion::SetActiveEngine,\r
- true);\r
-\r
- PropertyManager->Tie("propulsion/num-sel-fuel-tanks", this,\r
- &FGPropulsion::GetnumSelectedFuelTanks);\r
- PropertyManager->Tie("propulsion/num-sel-ox-tanks", this,\r
- &FGPropulsion::GetnumSelectedOxiTanks);\r
- PropertyManager->Tie("forces/fbx-prop-lbs", this,1,\r
- (PMF)&FGPropulsion::GetForces);\r
- PropertyManager->Tie("forces/fby-prop-lbs", this,2,\r
- (PMF)&FGPropulsion::GetForces);\r
- PropertyManager->Tie("forces/fbz-prop-lbs", this,3,\r
- (PMF)&FGPropulsion::GetForces);\r
- PropertyManager->Tie("moments/l-prop-lbsft", this,1,\r
- (PMF)&FGPropulsion::GetMoments);\r
- PropertyManager->Tie("moments/m-prop-lbsft", this,2,\r
- (PMF)&FGPropulsion::GetMoments);\r
- PropertyManager->Tie("moments/n-prop-lbsft", this,3,\r
- (PMF)&FGPropulsion::GetMoments);\r
- //PropertyManager->Tie("propulsion/tanks-weight-lbs", this,\r
- // &FGPropulsion::GetTanksWeight);\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-\r
-void FGPropulsion::unbind(void)\r
-{\r
- /* PropertyManager->Untie("propulsion/num-engines");\r
- PropertyManager->Untie("propulsion/num-tanks"); */\r
- PropertyManager->Untie("propulsion/num-sel-fuel-tanks");\r
- PropertyManager->Untie("propulsion/num-sel-ox-tanks");\r
- PropertyManager->Untie("propulsion/magneto_cmd");\r
- PropertyManager->Untie("propulsion/starter_cmd");\r
- PropertyManager->Untie("propulsion/active_engine");\r
- PropertyManager->Untie("forces/fbx-prop-lbs");\r
- PropertyManager->Untie("forces/fby-prop-lbs");\r
- PropertyManager->Untie("forces/fbz-prop-lbs");\r
- PropertyManager->Untie("moments/l-prop-lbsft");\r
- PropertyManager->Untie("moments/m-prop-lbsft");\r
- PropertyManager->Untie("moments/n-prop-lbsft");\r
- //PropertyManager->Untie("propulsion/tanks-weight-lbs");\r
-}\r
-\r
-//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\r
-// The bitmasked value choices are as follows:\r
-// unset: In this case (the default) JSBSim would only print\r
-// out the normally expected messages, essentially echoing\r
-// the config files as they are read. If the environment\r
-// variable is not set, debug_lvl is set to 1 internally\r
-// 0: This requests JSBSim not to output any messages\r
-// whatsoever.\r
-// 1: This value explicity requests the normal JSBSim\r
-// startup messages\r
-// 2: This value asks for a message to be printed out when\r
-// a class is instantiated\r
-// 4: When this value is set, a message is displayed when a\r
-// FGModel object executes its Run() method\r
-// 8: When this value is set, various runtime state variables\r
-// are printed out periodically\r
-// 16: When set various parameters are sanity checked and\r
-// a message is printed out when they go out of bounds\r
-\r
-void FGPropulsion::Debug(int from)\r
-{\r
- if (debug_lvl <= 0) return;\r
-\r
- if (debug_lvl & 1) { // Standard console startup message output\r
- if (from == 0) { // Constructor\r
-\r
- }\r
- }\r
- if (debug_lvl & 2 ) { // Instantiation/Destruction notification\r
- if (from == 0) cout << "Instantiated: FGPropulsion" << endl;\r
- if (from == 1) cout << "Destroyed: FGPropulsion" << endl;\r
- }\r
- if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects\r
- }\r
- if (debug_lvl & 8 ) { // Runtime state variables\r
- }\r
- if (debug_lvl & 16) { // Sanity checking\r
- }\r
- if (debug_lvl & 64) {\r
- if (from == 0) { // Constructor\r
- cout << IdSrc << endl;\r
- cout << IdHdr << endl;\r
- }\r
- }\r
-}\r
-\r
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+ Module: FGPropulsion.cpp
+ Author: Jon S. Berndt
+ Date started: 08/20/00
+ Purpose: Encapsulates the set of engines and tanks associated
+ with this aircraft
+
+ ------------- Copyright (C) 2000 Jon S. Berndt (jsb@hal-pc.org) -------------
+
+ 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 2 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, write to the Free Software Foundation, Inc., 59 Temple
+ Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Further information about the GNU General Public License can also be found on
+ the world wide web at http://www.gnu.org.
+
+FUNCTIONAL DESCRIPTION
+--------------------------------------------------------------------------------
+The Propulsion class is the container for the entire propulsion system, which is
+comprised of engines and tanks. Once the Propulsion class gets the config file,
+it reads in information which is specific to a type of engine. Then:
+
+1) The appropriate engine type instance is created
+2) At least one tank object is created, and is linked to an engine.
+
+At Run time each engines Calculate() method is called.
+
+HISTORY
+--------------------------------------------------------------------------------
+08/20/00 JSB Created
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+INCLUDES
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+#include "FGPropulsion.h"
+#include "FGRocket.h"
+#include "FGTurbine.h"
+#include "FGPiston.h"
+#include "FGElectric.h"
+#include "FGPropertyManager.h"
+#include <sstream>
+
+namespace JSBSim {
+
+static const char *IdSrc = "$Id$";
+static const char *IdHdr = ID_PROPULSION;
+
+extern short debug_lvl;
+
+
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+CLASS IMPLEMENTATION
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+FGPropulsion::FGPropulsion(FGFDMExec* exec) : FGModel(exec)
+{
+ Name = "FGPropulsion";
+
+ numSelectedFuelTanks = numSelectedOxiTanks = 0;
+ numTanks = numEngines = 0;
+ numOxiTanks = numFuelTanks = 0;
+ ActiveEngine = -1; // -1: ALL, 0: Engine 1, 1: Engine 2 ...
+ tankJ.InitMatrix();
+ refuel = false;
+ fuel_freeze = false;
+
+ bind();
+
+ Debug(0);
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+FGPropulsion::~FGPropulsion()
+{
+ for (unsigned int i=0; i<Engines.size(); i++) delete Engines[i];
+ Engines.clear();
+ unbind();
+ Debug(1);
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+bool FGPropulsion::Run(void)
+{
+ unsigned int i;
+
+ if (FGModel::Run()) return true;
+
+ double dt = State->Getdt();
+
+ vForces.InitMatrix();
+ vMoments.InitMatrix();
+
+ for (i=0; i<numEngines; i++) {
+ Engines[i]->Calculate();
+ vForces += Engines[i]->GetBodyForces(); // sum body frame forces
+ vMoments += Engines[i]->GetMoments(); // sum body frame moments
+ }
+
+ for (i=0; i<numTanks; i++) {
+ Tanks[i]->Calculate( dt * rate );
+ }
+
+ if (refuel) DoRefuel( dt * rate );
+
+ return false;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+bool FGPropulsion::GetSteadyState(void)
+{
+ double currentThrust = 0, lastThrust=-1;
+ int steady_count,j=0;
+ bool steady=false;
+
+ vForces.InitMatrix();
+ vMoments.InitMatrix();
+
+ if (!FGModel::Run()) {
+ for (unsigned int i=0; i<numEngines; i++) {
+ Engines[i]->SetTrimMode(true);
+ steady=false;
+ steady_count=0;
+ while (!steady && j < 6000) {
+ Engines[i]->Calculate();
+ lastThrust = currentThrust;
+ currentThrust = Engines[i]->GetThrust();
+ if (fabs(lastThrust-currentThrust) < 0.0001) {
+ steady_count++;
+ if (steady_count > 120) { steady=true; }
+ } else {
+ steady_count=0;
+ }
+ j++;
+ }
+ vForces += Engines[i]->GetBodyForces(); // sum body frame forces
+ vMoments += Engines[i]->GetMoments(); // sum body frame moments
+ Engines[i]->SetTrimMode(false);
+ }
+
+ return false;
+ } else {
+ return true;
+ }
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+bool FGPropulsion::ICEngineStart(void)
+{
+ int j;
+
+ vForces.InitMatrix();
+ vMoments.InitMatrix();
+
+ for (unsigned int i=0; i<numEngines; i++) {
+ Engines[i]->SetTrimMode(true);
+ j=0;
+ while (!Engines[i]->GetRunning() && j < 2000) {
+ Engines[i]->Calculate();
+ j++;
+ }
+ vForces += Engines[i]->GetBodyForces(); // sum body frame forces
+ vMoments += Engines[i]->GetMoments(); // sum body frame moments
+ Engines[i]->SetTrimMode(false);
+ }
+ return true;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+bool FGPropulsion::Load(FGConfigFile* AC_cfg)
+{
+ string token, fullpath, localpath;
+ string engineFileName, engType;
+ string parameter;
+ string enginePath = FDMExec->GetEnginePath();
+ string aircraftPath = FDMExec->GetAircraftPath();
+ double xLoc, yLoc, zLoc, Pitch, Yaw;
+ int Feed;
+ bool ThrottleAdded = false;
+ FGConfigFile* Cfg_ptr = 0;
+
+# ifndef macintosh
+ fullpath = enginePath + "/";
+ localpath = aircraftPath + "/Engines/";
+# else
+ fullpath = enginePath + ";";
+ localpath = aircraftPath + ";Engines;";
+# endif
+
+ AC_cfg->GetNextConfigLine();
+
+ while ((token = AC_cfg->GetValue()) != string("/PROPULSION")) {
+
+ if (token == "AC_ENGINE") { // ============ READING ENGINES
+
+ engineFileName = AC_cfg->GetValue("FILE");
+
+ // Look in the Aircraft/Engines directory first
+ Cfg_ptr = 0;
+ FGConfigFile Local_cfg(localpath + engineFileName + ".xml");
+ FGConfigFile Eng_cfg(fullpath + engineFileName + ".xml");
+ if (Local_cfg.IsOpen()) {
+ Cfg_ptr = &Local_cfg;
+ if (debug_lvl > 0) cout << "\n Reading engine from file: " << localpath
+ + engineFileName + ".xml"<< endl;
+ } else {
+ if (Eng_cfg.IsOpen()) {
+ Cfg_ptr = &Eng_cfg;
+ if (debug_lvl > 0) cout << "\n Reading engine from file: " << fullpath
+ + engineFileName + ".xml"<< endl;
+ }
+ }
+
+ if (Cfg_ptr) {
+ Cfg_ptr->GetNextConfigLine();
+ engType = Cfg_ptr->GetValue();
+
+ FCS->AddThrottle();
+ ThrottleAdded = true;
+
+ if (engType == "FG_ROCKET") {
+ Engines.push_back(new FGRocket(FDMExec, Cfg_ptr, numEngines));
+ } else if (engType == "FG_PISTON") {
+ Engines.push_back(new FGPiston(FDMExec, Cfg_ptr, numEngines));
+ } else if (engType == "FG_TURBINE") {
+ Engines.push_back(new FGTurbine(FDMExec, Cfg_ptr, numEngines));
+ } else if (engType == "FG_SIMTURBINE") {
+ cerr << endl;
+ cerr << "The FG_SIMTURBINE engine type has been renamed to FG_TURBINE." << endl;
+ cerr << "To fix this problem, simply replace the FG_SIMTURBINE name " << endl;
+ cerr << "in your engine file to FG_TURBINE." << endl;
+ cerr << endl;
+ Engines.push_back(new FGTurbine(FDMExec, Cfg_ptr, numEngines));
+ } else if (engType == "FG_ELECTRIC") {
+ Engines.push_back(new FGElectric(FDMExec, Cfg_ptr, numEngines));
+ } else {
+ cerr << fgred << " Unrecognized engine type: " << underon << engType
+ << underoff << " found in config file." << fgdef << endl;
+ return false;
+ }
+
+ AC_cfg->GetNextConfigLine();
+ while ((token = AC_cfg->GetValue()) != string("/AC_ENGINE")) {
+ *AC_cfg >> token;
+ if (token == "XLOC") { *AC_cfg >> xLoc; }
+ else if (token == "YLOC") { *AC_cfg >> yLoc; }
+ else if (token == "ZLOC") { *AC_cfg >> zLoc; }
+ else if (token == "PITCH") { *AC_cfg >> Pitch;}
+ else if (token == "YAW") { *AC_cfg >> Yaw; }
+ else if (token.find("AC_THRUSTER") != string::npos) {
+ if (debug_lvl > 0) cout << "\n Reading thruster definition" << endl;
+ Engines.back()->LoadThruster(AC_cfg);
+ AC_cfg->GetNextConfigLine();
+ }
+ else if (token == "FEED") {
+ *AC_cfg >> Feed;
+ Engines[numEngines]->AddFeedTank(Feed);
+ if (debug_lvl > 0) cout << " Feed tank: " << Feed << endl;
+ } else cerr << "Unknown identifier: " << token << " in engine file: "
+ << engineFileName << endl;
+ }
+
+ if (debug_lvl > 0) {
+ cout << " X = " << xLoc << endl;
+ cout << " Y = " << yLoc << endl;
+ cout << " Z = " << zLoc << endl;
+ cout << " Pitch = " << Pitch << endl;
+ cout << " Yaw = " << Yaw << endl;
+ }
+
+ Engines[numEngines]->SetPlacement(xLoc, yLoc, zLoc, Pitch, Yaw);
+ numEngines++;
+
+ } else {
+
+ cerr << fgred << "\n Could not read engine config file: " << underon <<
+ engineFileName + ".xml" << underoff << fgdef << endl;
+ return false;
+ }
+
+ } else if (token == "AC_TANK") { // ============== READING TANKS
+
+ if (debug_lvl > 0) cout << "\n Reading tank definition" << endl;
+ Tanks.push_back(new FGTank(AC_cfg, FDMExec));
+ switch(Tanks[numTanks]->GetType()) {
+ case FGTank::ttFUEL:
+ numSelectedFuelTanks++;
+ numFuelTanks++;
+ break;
+ case FGTank::ttOXIDIZER:
+ numSelectedOxiTanks++;
+ numOxiTanks++;
+ break;
+ }
+
+ numTanks++;
+ }
+ AC_cfg->GetNextConfigLine();
+ }
+
+ CalculateTankInertias();
+ if (!ThrottleAdded) FCS->AddThrottle(); // need to have at least one throttle
+
+ return true;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+string FGPropulsion::GetPropulsionStrings(string delimeter)
+{
+ unsigned int i;
+
+ string PropulsionStrings = "";
+ bool firstime = true;
+ stringstream buf;
+
+ for (i=0; i<Engines.size(); i++) {
+ if (firstime) firstime = false;
+ else PropulsionStrings += delimeter;
+
+ PropulsionStrings += Engines[i]->GetEngineLabels(delimeter);
+ }
+ for (i=0; i<Tanks.size(); i++) {
+ if (Tanks[i]->GetType() == FGTank::ttFUEL) buf << delimeter << "Fuel Tank " << i;
+ else if (Tanks[i]->GetType() == FGTank::ttOXIDIZER) buf << delimeter << "Oxidizer Tank " << i;
+ }
+
+ return PropulsionStrings;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+string FGPropulsion::GetPropulsionValues(string delimeter)
+{
+ unsigned int i;
+
+ string PropulsionValues = "";
+ bool firstime = true;
+ stringstream buf;
+
+ for (i=0; i<Engines.size(); i++) {
+ if (firstime) firstime = false;
+ else PropulsionValues += delimeter;
+
+ PropulsionValues += Engines[i]->GetEngineValues(delimeter);
+ }
+ for (i=0; i<Tanks.size(); i++) {
+ buf << delimeter;
+ buf << Tanks[i]->GetContents();
+ }
+
+ return PropulsionValues;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+FGColumnVector3& FGPropulsion::GetTanksMoment(void)
+{
+ iTank = Tanks.begin();
+ vXYZtank_arm.InitMatrix();
+ while (iTank < Tanks.end()) {
+ vXYZtank_arm(eX) += (*iTank)->GetXYZ(eX)*(*iTank)->GetContents();
+ vXYZtank_arm(eY) += (*iTank)->GetXYZ(eY)*(*iTank)->GetContents();
+ vXYZtank_arm(eZ) += (*iTank)->GetXYZ(eZ)*(*iTank)->GetContents();
+ iTank++;
+ }
+ return vXYZtank_arm;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+double FGPropulsion::GetTanksWeight(void)
+{
+ double Tw = 0.0;
+
+ iTank = Tanks.begin();
+ while (iTank < Tanks.end()) {
+ Tw += (*iTank)->GetContents();
+ iTank++;
+ }
+ return Tw;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+FGMatrix33& FGPropulsion::CalculateTankInertias(void)
+{
+ unsigned int size;
+
+ size = Tanks.size();
+ if (size == 0) return tankJ;
+
+ tankJ = FGMatrix33();
+
+ for (unsigned int i=0; i<size; i++)
+ tankJ += MassBalance->GetPointmassInertia( lbtoslug * Tanks[i]->GetContents(),
+ Tanks[i]->GetXYZ() );
+
+ return tankJ;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::SetMagnetos(int setting)
+{
+ if (ActiveEngine < 0) {
+ for (unsigned i=0; i<Engines.size(); i++) {
+ ((FGPiston*)Engines[i])->SetMagnetos(setting);
+ }
+ } else {
+ ((FGPiston*)Engines[ActiveEngine])->SetMagnetos(setting);
+ }
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::SetStarter(int setting)
+{
+ if (ActiveEngine < 0) {
+ for (unsigned i=0; i<Engines.size(); i++) {
+ if (setting == 0)
+ Engines[i]->SetStarter(false);
+ else
+ Engines[i]->SetStarter(true);
+ }
+ } else {
+ if (setting == 0)
+ Engines[ActiveEngine]->SetStarter(false);
+ else
+ Engines[ActiveEngine]->SetStarter(true);
+ }
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::SetCutoff(int setting)
+{
+ if (ActiveEngine < 0) {
+ for (unsigned i=0; i<Engines.size(); i++) {
+ if (setting == 0)
+ ((FGTurbine*)Engines[i])->SetCutoff(false);
+ else
+ ((FGTurbine*)Engines[i])->SetCutoff(true);
+ }
+ } else {
+ if (setting == 0)
+ ((FGTurbine*)Engines[ActiveEngine])->SetCutoff(false);
+ else
+ ((FGTurbine*)Engines[ActiveEngine])->SetCutoff(true);
+ }
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::SetActiveEngine(int engine)
+{
+ if (engine >= Engines.size() || engine < 0)
+ ActiveEngine = -1;
+ else
+ ActiveEngine = engine;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+double FGPropulsion::Transfer(int source, int target, double amount)
+{
+ double shortage, overage;
+
+ if (source == -1) {
+ shortage = 0.0;
+ } else {
+ shortage = Tanks[source]->Drain(amount);
+ }
+ if (target == -1) {
+ overage = 0.0;
+ } else {
+ overage = Tanks[target]->Fill(amount - shortage);
+ }
+ return overage;
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::DoRefuel(double time_slice)
+{
+ double fillrate = 100 * time_slice; // 100 lbs/sec = 6000 lbs/min
+ int TanksNotFull = 0;
+
+ for (unsigned int i=0; i<numTanks; i++) {
+ if (Tanks[i]->GetPctFull() < 99.99) ++TanksNotFull;
+ }
+
+ if (TanksNotFull) {
+ for (unsigned int i=0; i<numTanks; i++) {
+ if (Tanks[i]->GetPctFull() < 99.99)
+ Transfer(-1, i, fillrate/TanksNotFull);
+ }
+ }
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::SetFuelFreeze(bool f)
+{
+ fuel_freeze = f;
+ for (unsigned int i=0; i<numEngines; i++) {
+ Engines[i]->SetFuelFreeze(f);
+ }
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::bind(void)
+{
+ typedef double (FGPropulsion::*PMF)(int) const;
+ typedef int (FGPropulsion::*iPMF)(void) const;
+
+ PropertyManager->Tie("propulsion/magneto_cmd", this,
+ (iPMF)0, &FGPropulsion::SetMagnetos, true);
+ PropertyManager->Tie("propulsion/starter_cmd", this,
+ (iPMF)0, &FGPropulsion::SetStarter, true);
+ PropertyManager->Tie("propulsion/cutoff_cmd", this,
+ (iPMF)0, &FGPropulsion::SetCutoff, true);
+
+ PropertyManager->Tie("forces/fbx-prop-lbs", this,1,
+ (PMF)&FGPropulsion::GetForces);
+ PropertyManager->Tie("forces/fby-prop-lbs", this,2,
+ (PMF)&FGPropulsion::GetForces);
+ PropertyManager->Tie("forces/fbz-prop-lbs", this,3,
+ (PMF)&FGPropulsion::GetForces);
+ PropertyManager->Tie("moments/l-prop-lbsft", this,1,
+ (PMF)&FGPropulsion::GetMoments);
+ PropertyManager->Tie("moments/m-prop-lbsft", this,2,
+ (PMF)&FGPropulsion::GetMoments);
+ PropertyManager->Tie("moments/n-prop-lbsft", this,3,
+ (PMF)&FGPropulsion::GetMoments);
+
+ PropertyManager->Tie("propulsion/active_engine", this,
+ (iPMF)&FGPropulsion::GetActiveEngine, &FGPropulsion::SetActiveEngine, true);
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGPropulsion::unbind(void)
+{
+ PropertyManager->Untie("propulsion/magneto_cmd");
+ PropertyManager->Untie("propulsion/starter_cmd");
+ PropertyManager->Untie("propulsion/cutoff_cmd");
+ PropertyManager->Untie("propulsion/active_engine");
+ PropertyManager->Untie("forces/fbx-prop-lbs");
+ PropertyManager->Untie("forces/fby-prop-lbs");
+ PropertyManager->Untie("forces/fbz-prop-lbs");
+ PropertyManager->Untie("moments/l-prop-lbsft");
+ PropertyManager->Untie("moments/m-prop-lbsft");
+ PropertyManager->Untie("moments/n-prop-lbsft");
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+// The bitmasked value choices are as follows:
+// unset: In this case (the default) JSBSim would only print
+// out the normally expected messages, essentially echoing
+// the config files as they are read. If the environment
+// variable is not set, debug_lvl is set to 1 internally
+// 0: This requests JSBSim not to output any messages
+// whatsoever.
+// 1: This value explicity requests the normal JSBSim
+// startup messages
+// 2: This value asks for a message to be printed out when
+// a class is instantiated
+// 4: When this value is set, a message is displayed when a
+// FGModel object executes its Run() method
+// 8: When this value is set, various runtime state variables
+// are printed out periodically
+// 16: When set various parameters are sanity checked and
+// a message is printed out when they go out of bounds
+
+void FGPropulsion::Debug(int from)
+{
+ if (debug_lvl <= 0) return;
+
+ if (debug_lvl & 1) { // Standard console startup message output
+ if (from == 0) { // Constructor
+
+ }
+ }
+ if (debug_lvl & 2 ) { // Instantiation/Destruction notification
+ if (from == 0) cout << "Instantiated: FGPropulsion" << endl;
+ if (from == 1) cout << "Destroyed: FGPropulsion" << endl;
+ }
+ if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
+ }
+ if (debug_lvl & 8 ) { // Runtime state variables
+ }
+ if (debug_lvl & 16) { // Sanity checking
+ }
+ if (debug_lvl & 64) {
+ if (from == 0) { // Constructor
+ cout << IdSrc << endl;
+ cout << IdHdr << endl;
+ }
+ }
+}
+}
projects / flightgear.git / blobdiff