]> git.mxchange.org Git - flightgear.git/blobdiff - src/FDM/JSBSim/FGAuxiliary.cpp
Rob Deters: UIUC updates from March 1, 2004.
[flightgear.git] / src / FDM / JSBSim / FGAuxiliary.cpp
index 46f157545c833f24a6c346f4c58306d7410a02ad..09b2aefc74dc08993f3dc40adb88e43302d18545 100644 (file)
@@ -41,19 +41,17 @@ INCLUDES
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
 #include "FGAuxiliary.h"
+#include "FGAerodynamics.h"
 #include "FGTranslation.h"
 #include "FGRotation.h"
 #include "FGAtmosphere.h"
 #include "FGState.h"
 #include "FGFDMExec.h"
-#include "FGFCS.h"
 #include "FGAircraft.h"
-#include "FGPosition.h"
-#include "FGOutput.h"
 #include "FGInertial.h"
-#include "FGMatrix33.h"
-#include "FGColumnVector3.h"
-#include "FGColumnVector4.h"
+#include "FGPropertyManager.h"
+
+namespace JSBSim {
 
 static const char *IdSrc = "$Id$";
 static const char *IdHdr = ID_AUXILIARY;
@@ -63,23 +61,26 @@ CLASS IMPLEMENTATION
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
 
-FGAuxiliary::FGAuxiliary(FGFDMExec* fdmex) : FGModel(fdmex),
-  vPilotAccel(3),
-  vToEyePt(3)
+FGAuxiliary::FGAuxiliary(FGFDMExec* fdmex) : FGModel(fdmex)
 {
   Name = "FGAuxiliary";
-  vcas = veas = mach = qbar = pt = 0;
+  vcas = veas = mach = qbar = pt = tat = 0;
   psl = rhosl = 1;
   earthPosAngle = 0.0;
   
-  if (debug_lvl & 2) cout << "Instantiated: " << Name << endl;
+  vPilotAccelN.InitMatrix();
+  
+  bind();
+  
+  Debug(0);
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 FGAuxiliary::~FGAuxiliary()
 {
-  if (debug_lvl & 2) cout << "Destroyed:    FGAuxiliary" << endl;
+  unbind();
+  Debug(1);
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -90,25 +91,34 @@ bool FGAuxiliary::Run()
 
   if (!FGModel::Run()) {
     GetState();
+    
+    //calculate total temperature assuming isentropic flow
+    tat=sat*(1 + 0.2*mach*mach);
+    tatc=RankineToCelsius(tat);
+    
     if (mach < 1) {   //calculate total pressure assuming isentropic flow
-      pt=p*pow((1 + 0.2*mach*mach),3.5);
+      pt = p*pow((1 + 0.2*machU*machU),3.5);
     } else {
       // shock in front of pitot tube, we'll assume its normal and use
       // the Rayleigh Pitot Tube Formula, i.e. the ratio of total
       // pressure behind the shock to the static pressure in front
 
-      B = 5.76*mach*mach/(5.6*mach*mach - 0.8);
+      B = 5.76*machU*machU/(5.6*machU*machU - 0.8);
 
       // The denominator above is zero for Mach ~ 0.38, for which
       // we'll never be here, so we're safe
 
-      D = (2.8*mach*mach-0.4)*0.4167;
+      D = (2.8*machU*machU-0.4)*0.4167;
       pt = p*pow(B,3.5)*D;
     }
 
     A = pow(((pt-p)/psl+1),0.28571);
-    vcas = sqrt(7*psl/rhosl*(A-1));
-    veas = sqrt(2*qbar/rhosl);
+    if (machU > 0.0) {
+      vcas = sqrt(7*psl/rhosl*(A-1));
+      veas = sqrt(2*qbar/rhosl);
+    } else {
+      vcas = veas = 0.0;
+    }
 
     // Pilot sensed accelerations are calculated here. This is used
     // for the coordinated turn ball instrument. Motion base platforms sometimes
@@ -147,13 +157,21 @@ bool FGAuxiliary::Run()
     // mass, the acceleration vector is calculated. The term wdot is equivalent
     // to the JSBSim vPQRdot vector, and the w parameter is equivalent to vPQR.
     // The radius R is calculated below in the vector vToEyePt.
-        
-    vToEyePt = Aircraft->GetXYZep() - MassBalance->GetXYZcg();
+    
+    vPilotAccel.InitMatrix();   
+    if ( Translation->GetVt() > 1 ) {
+       vPilotAccel =  Aerodynamics->GetForces() 
+                      +  Propulsion->GetForces()
+                      +  GroundReactions->GetForces();
+       vPilotAccel /= MassBalance->GetMass();
+       vToEyePt = MassBalance->StructuralToBody(Aircraft->GetXYZep());
+       vPilotAccel += Rotation->GetPQRdot() * vToEyePt;
+       vPilotAccel += Rotation->GetPQR() * (Rotation->GetPQR() * vToEyePt);
+    } else {
+       vPilotAccel = -1*( State->GetTl2b() * Inertial->GetGravity() );
+    }   
 
-    vPilotAccel = Aircraft->GetBodyAccel()
-                  + Rotation->GetPQRdot() * vToEyePt
-                  + Rotation->GetPQR() * (Rotation->GetPQR() * vToEyePt)
-                  + Inertial->GetGravity();
+    vPilotAccelN = vPilotAccel/Inertial->gravity();
 
     earthPosAngle += State->Getdt()*Inertial->omega();
     return false;
@@ -190,16 +208,69 @@ double FGAuxiliary::GetCrossWind(void)
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-FGColumnVector3 FGAuxiliary::GetNpilot(void)
+void FGAuxiliary::bind(void)
 {
-  return vPilotAccel/Inertial->gravity();
+  typedef double (FGAuxiliary::*PMF)(int) const;
+  PropertyManager->Tie("velocities/vc-fps", this,
+                       &FGAuxiliary::GetVcalibratedFPS);
+  PropertyManager->Tie("velocities/vc-kts", this,
+                       &FGAuxiliary::GetVcalibratedKTS);
+  PropertyManager->Tie("velocities/ve-fps", this,
+                       &FGAuxiliary::GetVequivalentFPS);
+  PropertyManager->Tie("velocities/ve-kts", this,
+                       &FGAuxiliary::GetVequivalentKTS);
+  PropertyManager->Tie("velocities/machU", this,
+                       &FGAuxiliary::GetMachU);
+  PropertyManager->Tie("velocities/tat-r", this,
+                       &FGAuxiliary::GetTotalTemperature);
+  PropertyManager->Tie("velocities/tat-c", this,
+                       &FGAuxiliary::GetTAT_C);
+  PropertyManager->Tie("velocities/pt-lbs_sqft", this,
+                       &FGAuxiliary::GetTotalPressure);
+                     
+  PropertyManager->Tie("accelerations/a-pilot-x-ft_sec2", this,1,
+                       (PMF)&FGAuxiliary::GetPilotAccel);
+  PropertyManager->Tie("accelerations/a-pilot-y-ft_sec2", this,2,
+                       (PMF)&FGAuxiliary::GetPilotAccel);
+  PropertyManager->Tie("accelerations/a-pilot-z-ft_sec2", this,3,
+                       (PMF)&FGAuxiliary::GetPilotAccel);
+  PropertyManager->Tie("accelerations/n-pilot-x-norm", this,1,
+                       (PMF)&FGAuxiliary::GetNpilot);
+  PropertyManager->Tie("accelerations/n-pilot-y-norm", this,2,
+                       (PMF)&FGAuxiliary::GetNpilot);
+  PropertyManager->Tie("accelerations/n-pilot-z-norm", this,3,
+                       (PMF)&FGAuxiliary::GetNpilot);
+  PropertyManager->Tie("position/epa-rad", this,
+                       &FGAuxiliary::GetEarthPositionAngle);
+  /* PropertyManager->Tie("atmosphere/headwind-fps", this,
+                       &FGAuxiliary::GetHeadWind,
+                       true);
+  PropertyManager->Tie("atmosphere/crosswind-fps", this,
+                       &FGAuxiliary::GetCrossWind,
+                       true); */
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-double FGAuxiliary::GetNpilot(int idx)
+void FGAuxiliary::unbind(void)
 {
-  return (vPilotAccel/Inertial->gravity())(idx);
+  PropertyManager->Untie("velocities/vc-fps");
+  PropertyManager->Untie("velocities/vc-kts");
+  PropertyManager->Untie("velocities/ve-fps");
+  PropertyManager->Untie("velocities/ve-kts");
+  PropertyManager->Untie("velocities/machU");
+  PropertyManager->Untie("velocities/tat-r");
+  PropertyManager->Untie("velocities/tat-c");
+  PropertyManager->Untie("accelerations/a-pilot-x-ft_sec2");
+  PropertyManager->Untie("accelerations/a-pilot-y-ft_sec2");
+  PropertyManager->Untie("accelerations/a-pilot-z-ft_sec2");
+  PropertyManager->Untie("accelerations/n-pilot-x-norm");
+  PropertyManager->Untie("accelerations/n-pilot-y-norm");
+  PropertyManager->Untie("accelerations/n-pilot-z-norm");
+  PropertyManager->Untie("position/epa-rad");
+  /* PropertyManager->Untie("atmosphere/headwind-fps");
+  PropertyManager->Untie("atmosphere/crosswind-fps"); */
+
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -208,15 +279,57 @@ void FGAuxiliary::GetState(void)
 {
   qbar = Translation->Getqbar();
   mach = Translation->GetMach();
+  machU= Translation->GetMachU();
   p = Atmosphere->GetPressure();
   rhosl = Atmosphere->GetDensitySL();
   psl = Atmosphere->GetPressureSL();
+  sat = Atmosphere->GetTemperature();
 }
 
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-void FGAuxiliary::Debug(void)
+//    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 FGAuxiliary::Debug(int from)
 {
-    //TODO: Add your source code here
+  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: FGAuxiliary" << endl;
+    if (from == 1) cout << "Destroyed:    FGAuxiliary" << 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;
+    }
+  }
 }
 
+} // namespace JSBSim