%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
#include "FGAuxiliary.h"
+#include "FGAerodynamics.h"
#include "FGTranslation.h"
#include "FGRotation.h"
#include "FGAtmosphere.h"
#include "FGColumnVector4.h"
#include "FGPropertyManager.h"
+namespace JSBSim {
+
static const char *IdSrc = "$Id$";
static const char *IdHdr = ID_AUXILIARY;
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;
vPilotAccelN.InitMatrix();
+ bind();
+
Debug(0);
}
FGAuxiliary::~FGAuxiliary()
{
+ unbind();
Debug(1);
}
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
// The radius R is calculated below in the vector vToEyePt.
vPilotAccel.InitMatrix();
- if( Translation->GetVt() > 1 ) {
- vToEyePt = Aircraft->GetXYZep() - MassBalance->GetXYZcg();
- vToEyePt *= inchtoft;
- vPilotAccel = Aerodynamics->GetForces()
- + Propulsion->GetForces()
- + GroundReactions->GetForces();
- vPilotAccel /= MassBalance->GetMass();
- vPilotAccel += Rotation->GetPQRdot() * vToEyePt;
- vPilotAccel += Rotation->GetPQR() * (Rotation->GetPQR() * vToEyePt);
- //vPilotAccel(2)*=-1;
- vPilotAccelN = vPilotAccel/Inertial->gravity();
- }
+ 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() );
+ }
+
+ vPilotAccelN = vPilotAccel/Inertial->gravity();
+
earthPosAngle += State->Getdt()*Inertial->omega();
return false;
} else {
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+void FGAuxiliary::bind(void)
+{
+ 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); */
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+void FGAuxiliary::unbind(void)
+{
+ 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"); */
+
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
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::bind(void){
- 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("accelerations/a-pilot-x-ft_sec2", this,1,
- &FGAuxiliary::GetPilotAccel);
- PropertyManager->Tie("accelerations/a-pilot-y-ft_sec2", this,2,
- &FGAuxiliary::GetPilotAccel);
- PropertyManager->Tie("accelerations/a-pilot-z-ft_sec2", this,3,
- &FGAuxiliary::GetPilotAccel);
- PropertyManager->Tie("accelerations/n-pilot-x-norm", this,1,
- &FGAuxiliary::GetNpilot);
- PropertyManager->Tie("accelerations/n-pilot-y-norm", this,2,
- &FGAuxiliary::GetNpilot);
- PropertyManager->Tie("accelerations/n-pilot-z-norm", this,3,
- &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); */
-
-}
-
-void FGAuxiliary::unbind(void){
- PropertyManager->Untie("velocities/vc-fps");
- PropertyManager->Untie("velocities/vc-kts");
- PropertyManager->Untie("velocities/ve-fps");
- PropertyManager->Untie("velocities/ve-kts");
- 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"); */
-
-}
+} // namespace JSBSim