JSBSim Flight Dynamics Model
1.0 (02 March 2017)
An Open Source Flight Dynamics and Control Software Library in C++
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Encapsulates various uncategorized scheduled functions. More...
#include <FGAuxiliary.h>
Classes | |
struct | Inputs |
Public Member Functions | |
FGAuxiliary (FGFDMExec *Executive) | |
Constructor. More... | |
~FGAuxiliary () | |
Destructor. | |
double | Getadot (void) const |
double | Getadot (int unit) const |
double | GetAeroPQR (int axis) const |
const FGColumnVector3 & | GetAeroPQR (void) const |
const FGColumnVector3 & | GetAeroUVW (void) const |
double | GetAeroUVW (int idx) const |
double | Getalpha (void) const |
double | Getalpha (int unit) const |
double | Getbdot (void) const |
double | Getbdot (int unit) const |
double | Getbeta (void) const |
double | Getbeta (int unit) const |
double | GetCrossWind (void) const |
int | GetDayOfYear (void) const |
double | GetDistanceRelativePosition (void) const |
double | GetEulerRates (int axis) const |
const FGColumnVector3 & | GetEulerRates (void) const |
double | GetGamma (void) const |
double | GetGroundTrack (void) const |
double | GetHeadWind (void) const |
double | GetHOverBCG (void) const |
double | GetHOverBMAC (void) const |
double | GethVRP (void) const |
double | GetLatitudeRelativePosition (void) const |
const FGLocation & | GetLocationVRP (void) const |
double | GetLongitudeRelativePosition (void) const |
double | GetMach (void) const |
Gets the Mach number. More... | |
double | GetMachU (void) const |
The mach number calculated using the vehicle X axis velocity. More... | |
double | GetMagBeta (void) const |
double | GetMagBeta (int unit) const |
const FGColumnVector3 & | GetNcg (void) const |
double | GetNcg (int idx) const |
double | GetNlf (void) const |
double | GetNpilot (int idx) const |
const FGColumnVector3 & | GetNpilot (void) const |
const FGColumnVector3 & | GetNwcg (void) const |
double | GetNy (void) const |
The lateral acceleration in g's of the aircraft center of gravity. More... | |
double | GetNz (void) const |
The vertical acceleration in g's of the aircraft center of gravity. More... | |
double | GetPilotAccel (int idx) const |
const FGColumnVector3 & | GetPilotAccel (void) const |
double | Getqbar (void) const |
double | GetqbarUV (void) const |
double | GetqbarUW (void) const |
double | GetReynoldsNumber (void) const |
double | GetSecondsInDay (void) const |
double | GetTAT_C (void) const |
const FGMatrix33 & | GetTb2w (void) |
Calculates and returns the body-to-wind axis transformation matrix. More... | |
double | GetTotalPressure (void) const |
Returns the total pressure. More... | |
double | GetTotalTemperature (void) const |
Returns the total temperature. More... | |
const FGMatrix33 & | GetTw2b (void) |
Calculates and returns the wind-to-body axis transformation matrix. More... | |
double | GetVcalibratedFPS (void) const |
Returns Calibrated airspeed in feet/second. More... | |
double | GetVcalibratedKTS (void) const |
Returns Calibrated airspeed in knots. More... | |
double | GetVequivalentFPS (void) const |
Returns equivalent airspeed in feet/second. More... | |
double | GetVequivalentKTS (void) const |
Returns equivalent airspeed in knots. More... | |
double | GetVground (void) const |
Gets the ground speed in feet per second. More... | |
double | GetVt (void) const |
Gets the magnitude of total vehicle velocity including wind effects in feet per second. More... | |
double | GetVtrueFPS () const |
Returns the true airspeed in feet per second. More... | |
double | GetVtrueKTS () const |
Returns the true airspeed in knots. More... | |
bool | InitModel (void) |
bool | Run (bool Holding) |
Runs the Auxiliary routines; called by the Executive Can pass in a value indicating if the executive is directing the simulation to Hold. More... | |
void | SetAeroPQR (const FGColumnVector3 &tt) |
void | SetDayOfYear (int doy) |
void | SetSecondsInDay (double sid) |
Public Member Functions inherited from FGModel | |
FGModel (FGFDMExec *) | |
Constructor. | |
virtual | ~FGModel () |
Destructor. | |
virtual SGPath | FindFullPathName (const SGPath &path) const |
FGFDMExec * | GetExec (void) |
unsigned int | GetRate (void) |
Get the output rate for the model in frames. | |
void | SetPropertyManager (FGPropertyManager *fgpm) |
void | SetRate (unsigned int tt) |
Set the ouput rate for the model in frames. | |
Public Member Functions inherited from FGModelFunctions | |
std::string | GetFunctionStrings (const std::string &delimeter) const |
Gets the strings for the current set of functions. More... | |
std::string | GetFunctionValues (const std::string &delimeter) const |
Gets the function values. More... | |
FGFunction * | GetPreFunction (const std::string &name) |
Get one of the "pre" function. More... | |
bool | Load (Element *el, FGPropertyManager *PropertyManager, std::string prefix="") |
void | PostLoad (Element *el, FGPropertyManager *PropertyManager, std::string prefix="") |
void | PreLoad (Element *el, FGPropertyManager *PropertyManager, std::string prefix="") |
void | RunPostFunctions (void) |
void | RunPreFunctions (void) |
Public Member Functions inherited from FGJSBBase | |
FGJSBBase () | |
Constructor for FGJSBBase. | |
virtual | ~FGJSBBase () |
Destructor for FGJSBBase. | |
void | disableHighLighting (void) |
Disables highlighting in the console output. | |
std::string | GetVersion (void) |
Returns the version number of JSBSim. More... | |
void | PutMessage (const Message &msg) |
Places a Message structure on the Message queue. More... | |
void | PutMessage (const std::string &text) |
Creates a message with the given text and places it on the queue. More... | |
void | PutMessage (const std::string &text, bool bVal) |
Creates a message with the given text and boolean value and places it on the queue. More... | |
void | PutMessage (const std::string &text, int iVal) |
Creates a message with the given text and integer value and places it on the queue. More... | |
void | PutMessage (const std::string &text, double dVal) |
Creates a message with the given text and double value and places it on the queue. More... | |
int | SomeMessages (void) |
Reads the message on the queue (but does not delete it). More... | |
void | ProcessMessage (void) |
Reads the message on the queue and removes it from the queue. More... | |
Message * | ProcessNextMessage (void) |
Reads the next message on the queue and removes it from the queue. More... | |
Public Attributes | |
struct JSBSim::FGAuxiliary::Inputs | in |
Public Attributes inherited from FGModel | |
std::string | Name |
Additional Inherited Members | |
Public Types inherited from FGJSBBase | |
enum | { eL = 1, eM, eN } |
Moments L, M, N. | |
enum | { eP = 1, eQ, eR } |
Rates P, Q, R. | |
enum | { eU = 1, eV, eW } |
Velocities U, V, W. | |
enum | { eX = 1, eY, eZ } |
Positions X, Y, Z. | |
enum | { ePhi = 1, eTht, ePsi } |
Euler angles Phi, Theta, Psi. | |
enum | { eDrag = 1, eSide, eLift } |
Stability axis forces, Drag, Side force, Lift. | |
enum | { eRoll = 1, ePitch, eYaw } |
Local frame orientation Roll, Pitch, Yaw. | |
enum | { eNorth = 1, eEast, eDown } |
Local frame position North, East, Down. | |
enum | { eLat = 1, eLong, eRad } |
Locations Radius, Latitude, Longitude. | |
enum | { inNone = 0, inDegrees, inRadians, inMeters, inFeet } |
Conversion specifiers. | |
Static Public Member Functions inherited from FGJSBBase | |
static double | CelsiusToFahrenheit (double celsius) |
Converts from degrees Celsius to degrees Fahrenheit. More... | |
static double | CelsiusToKelvin (double celsius) |
Converts from degrees Celsius to degrees Kelvin. More... | |
static double | CelsiusToRankine (double celsius) |
Converts from degrees Celsius to degrees Rankine. More... | |
static double | Constrain (double min, double value, double max) |
Constrain a value between a minimum and a maximum value. | |
static bool | EqualToRoundoff (double a, double b) |
Finite precision comparison. More... | |
static bool | EqualToRoundoff (float a, float b) |
Finite precision comparison. More... | |
static bool | EqualToRoundoff (float a, double b) |
Finite precision comparison. More... | |
static bool | EqualToRoundoff (double a, float b) |
Finite precision comparison. More... | |
static double | FahrenheitToCelsius (double fahrenheit) |
Converts from degrees Fahrenheit to degrees Celsius. More... | |
static double | FeetToMeters (double measure) |
Converts from feet to meters. More... | |
static double | GaussianRandomNumber (void) |
static double | KelvinToCelsius (double kelvin) |
Converts from degrees Kelvin to degrees Celsius. More... | |
static double | KelvinToFahrenheit (double kelvin) |
Converts from degrees Kelvin to degrees Fahrenheit. More... | |
static double | KelvinToRankine (double kelvin) |
Converts from degrees Kelvin to degrees Rankine. More... | |
static double | MachFromVcalibrated (double vcas, double p, double psl, double rhosl) |
Calculate the Mach number from the calibrated airspeed. More... | |
static double | PitotTotalPressure (double mach, double p) |
Compute the total pressure in front of the Pitot tube. More... | |
static double | RankineToCelsius (double rankine) |
Converts from degrees Rankine to degrees Celsius. More... | |
static double | RankineToKelvin (double rankine) |
Converts from degrees Rankine to degrees Kelvin. More... | |
static double | sign (double num) |
static double | VcalibratedFromMach (double mach, double p, double psl, double rhosl) |
Calculate the calibrated airspeed from the Mach number. More... | |
Static Public Attributes inherited from FGJSBBase | |
static short | debug_lvl = 1 |
static char | highint [5] = {27, '[', '1', 'm', '\0' } |
highlights text | |
static char | halfint [5] = {27, '[', '2', 'm', '\0' } |
low intensity text | |
static char | normint [6] = {27, '[', '2', '2', 'm', '\0' } |
normal intensity text | |
static char | reset [5] = {27, '[', '0', 'm', '\0' } |
resets text properties | |
static char | underon [5] = {27, '[', '4', 'm', '\0' } |
underlines text | |
static char | underoff [6] = {27, '[', '2', '4', 'm', '\0' } |
underline off | |
static char | fgblue [6] = {27, '[', '3', '4', 'm', '\0' } |
blue text | |
static char | fgcyan [6] = {27, '[', '3', '6', 'm', '\0' } |
cyan text | |
static char | fgred [6] = {27, '[', '3', '1', 'm', '\0' } |
red text | |
static char | fggreen [6] = {27, '[', '3', '2', 'm', '\0' } |
green text | |
static char | fgdef [6] = {27, '[', '3', '9', 'm', '\0' } |
default text | |
Protected Member Functions inherited from FGModel | |
virtual bool | Load (Element *el) |
Loads this model. More... | |
Protected Member Functions inherited from FGJSBBase | |
void | Debug (int) |
Static Protected Member Functions inherited from FGJSBBase | |
static std::string | CreateIndexedPropertyName (const std::string &Property, int index) |
Protected Attributes inherited from FGModel | |
unsigned int | exe_ctr |
FGFDMExec * | FDMExec |
FGPropertyManager * | PropertyManager |
unsigned int | rate |
Protected Attributes inherited from FGModelFunctions | |
FGPropertyReader | LocalProperties |
std::vector< FGFunction * > | PostFunctions |
std::vector< FGFunction * > | PreFunctions |
Static Protected Attributes inherited from FGJSBBase | |
static const double | degtorad = 0.017453292519943295769236907684886 |
static const double | fpstokts = 1.0/ktstofps |
static const double | fttom = 0.3048 |
static int | gaussian_random_number_phase = 0 |
static const double | hptoftlbssec = 550.0 |
static const double | in3tom3 = 1.638706E-5 |
static const double | inchtoft = 0.08333333 |
static const double | inhgtopa = 3386.38 |
static const std::string | JSBSim_version = "1.0 " __DATE__ " " __TIME__ |
static const double | kgtolb = 2.20462 |
static const double | kgtoslug = 0.06852168 |
static const double | ktstofps = 1.68781 |
static const double | lbtoslug = 1.0/slugtolb |
static Message | localMsg |
static const double | m3toft3 = 1.0/(fttom*fttom*fttom) |
static double | Mair = 28.9645 |
static unsigned int | messageId = 0 |
static std::queue< Message > | Messages |
static const std::string | needed_cfg_version = "2.0" |
static const double | psftoinhg = 0.014138 |
static const double | psftopa = 47.88 |
static const double | radtodeg = 57.295779513082320876798154814105 |
static double | Reng = 1716.56 |
static double | Rstar = 1545.348 |
static const double | SHRatio = 1.40 |
static const double | slugtolb = 32.174049 |
Encapsulates various uncategorized scheduled functions.
Pilot sensed accelerations are calculated here. This is used for the coordinated turn ball instrument. Motion base platforms sometimes use the derivative of pilot sensed accelerations as the driving parameter, rather than straight accelerations.
The theory behind pilot-sensed calculations is presented:
For purposes of discussion and calculation, assume for a minute that the pilot is in space and motionless in inertial space. She will feel no accelerations. If the aircraft begins to accelerate along any axis or axes (without rotating), the pilot will sense those accelerations. If any rotational moment is applied, the pilot will sense an acceleration due to that motion in the amount:
[wdot X R] + [w X (w X R)] Term I Term II
where:
wdot = omegadot, the rotational acceleration rate vector w = omega, the rotational rate vector R = the vector from the aircraft CG to the pilot eyepoint
The sum total of these two terms plus the acceleration of the aircraft body axis gives the acceleration the pilot senses in inertial space. In the presence of a large body such as a planet, a gravity field also provides an accelerating attraction. This acceleration can be transformed from the reference frame of the planet so as to be expressed in the frame of reference of the aircraft. This gravity field accelerating attraction is felt by the pilot as a force on her tushie as she sits in her aircraft on the runway awaiting takeoff clearance.
In JSBSim the acceleration of the body frame in inertial space is given by the F = ma relation. If the vForces vector is divided by the aircraft mass, the acceleration vector is calculated. The term wdot is equivalent to the JSBSim vPQRdot vector, and the w parameter is equivalent to vPQR.
Definition at line 109 of file FGAuxiliary.h.
FGAuxiliary | ( | FGFDMExec * | Executive | ) |
Constructor.
Executive | a pointer to the parent executive object |
Definition at line 62 of file FGAuxiliary.cpp.
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Gets the Mach number.
Definition at line 220 of file FGAuxiliary.h.
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The mach number calculated using the vehicle X axis velocity.
Definition at line 223 of file FGAuxiliary.h.
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The lateral acceleration in g's of the aircraft center of gravity.
Definition at line 229 of file FGAuxiliary.h.
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The vertical acceleration in g's of the aircraft center of gravity.
Definition at line 226 of file FGAuxiliary.h.
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Calculates and returns the body-to-wind axis transformation matrix.
Definition at line 203 of file FGAuxiliary.h.
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Returns the total pressure.
Total pressure is freestream total pressure for subsonic only. For supersonic it is the 1D total pressure behind a normal shock.
Definition at line 149 of file FGAuxiliary.h.
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Returns the total temperature.
The total temperature ("tat", isentropic flow) is calculated:
(where "in.Temperature" is standard temperature calculated by the atmosphere model)
Definition at line 158 of file FGAuxiliary.h.
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Calculates and returns the wind-to-body axis transformation matrix.
Definition at line 198 of file FGAuxiliary.h.
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Returns Calibrated airspeed in feet/second.
Definition at line 133 of file FGAuxiliary.h.
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Returns Calibrated airspeed in knots.
Definition at line 135 of file FGAuxiliary.h.
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Returns equivalent airspeed in feet/second.
Definition at line 137 of file FGAuxiliary.h.
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Returns equivalent airspeed in knots.
Definition at line 139 of file FGAuxiliary.h.
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Gets the ground speed in feet per second.
The magnitude is the square root of the sum of the squares (RSS) of the vehicle north and east velocity components.
Definition at line 217 of file FGAuxiliary.h.
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Gets the magnitude of total vehicle velocity including wind effects in feet per second.
Definition at line 211 of file FGAuxiliary.h.
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Returns the true airspeed in feet per second.
Definition at line 141 of file FGAuxiliary.h.
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Returns the true airspeed in knots.
Definition at line 143 of file FGAuxiliary.h.
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Runs the Auxiliary routines; called by the Executive Can pass in a value indicating if the executive is directing the simulation to Hold.
Holding | if true, the executive has been directed to hold the sim from advancing time. Some models may ignore this flag, such as the Input model, which may need to be active to listen on a socket for the "Resume" command to be given. |
Reimplemented from FGModel.
Definition at line 140 of file FGAuxiliary.cpp.