accel.hlp

MATLAB在飞行动力学和控制中应用的工具

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ACCEL is a masked Simulink subsystem, used to compute the speci-
fic forces and accelerations of the aircraft, as measured in the
aircraft's centre of gravity. The block ACCEL is contained in the
subsystem 'Additional Outputs' of the system BEAVER. The outputs
from ACCEL are not needed to solve the state equations. Hence,
ACCEL can be removed from the system BEAVER without affecting
the solution of the state equations.

Inputvectors: Ftot and Fgrav.
=============================
  Ftot = [Fx Fy Fz]' (total body-axes forces, coming from FMSORT)

  Fgrav= [Xgr Ygr Zgr]' (body-axes forces due to gravity, coming
                                          from the block GRAVITY)
where:

  Fx, Fy, Fz   : total forces along the aircraft's body-axes [N]
  Xgr, Ygr, Zgr: gravity forces along the aircraft's body-axes [N]

Outputvector: yacc.
===================
  yacc = [Ax Ay Az axk ayk azk]'

where:

  Ax, Ay, Az   : specific forces (= outputs of accelerometers) in
                 the centre of gravity of the aircraft [m/s^2]
  axk, ayk, azk: components of the accelerations of the c.g. along
                 the body-axes [m/s^2]

Parameters which must be loaded in the Matlab Workspace.
========================================================
  GM1 = vector with some important geometrical properties of the
        'Beaver' aircraft, and the mass of the aircraft (which is
        assumed to be constant during the motions of interest).
        Here, the mass m is extracted from the vector GM1. The
        vector GM1 can be loaded from file by calling LOADER.M.
        If the datafile does not yet exist, run MODBUILD.M first.
        Type HELP LOADER or HELP MODBUILD for more details.

More info:
==========
See GRAVITY.HLP, FMSORT.HLP, for details about the determination
of the gravity forces and total external forces.

See MOREOUTS.HLP for help about the subsystem 'Additional Out-
puts'.

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The FDC toolbox, Copyright Marc Rauw 1994-1998.