airdata1.hlp

来自「MATLAB在飞行动力学和控制中应用的工具」· HLP 代码 · 共 52 行

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AIRDATA1 is a masked Simulink subsystem, used to compute the
speed of sound a, the Mach number M, and the dynamic pressure
qdyn. The block AIRDATA1 is contained in the subsystem 'Airdata
Group' of the system BEAVER.

Inputvectors: x and yatm (the inputvariables which are not used
in AIRDATA1 are displayed between accolades).
==============================================================
  x    = [V alpha beta p q r psi theta phi xe ye H]'     (states)
  yatm = [rho ps T mu g]'   (atmospheric properties, computed in
                                               the block ATMOSPH)

where:

  V    : airspeed [m/s]
 {alpha: angle of attack [rad]                                  }
 {beta : sideslip angle [rad]                                   }
 {p    : roll rate [rad/s]                                      }
 {q    : pitch rate [rad/s]                                     }
 {r    : yaw rate [rad/s]                                       }
 {psi  : yaw angle [rad]                                        }
 {theta: pitch angle [rad]                                      }
 {phi  : roll angle [rad]                                       }
 {xe   : x-coordinate in Earth-fixed reference frame [m]        }
 {ye   : y-coordinate ''     ''          ''      ''  [m]        }
 {H    : altitude above sea-level [m]                           }

  rho  : airdensity [kg/m^3]
 {ps   : static pressure [N/m^2]                                }
  T    : temperature [K]
 {mu   : dynamic viscosity [kg/(m*s)]                           }
 {g    : acceleration of gravity [m/s^2]                        }

Outputvector: yad1.
===================
  yad1 = [a M qdyn]'

where:

  a    : speed of sound [m/s]
  M    : Mach number [-]
  qdyn : dynamic pressure [N/m^2]

More info:
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See also ATMOSPH.HLP, AIRDATA2.HLP, AIRDATA3.HLP, and ADGRP.HLP
(ADGRP = 'Airdata Group').

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The FDC toolbox, Copyright Marc Rauw 1994-1998.