
- •Term Paper
- •Automatic control of the center of mass in the horizontal plane
- •Systems of co-ordinates, applied in navigation complexes
- •Methods for determining the coordinates of the location of aircraft. Structure of a typical navigation system
- •Management practices the center of mass of aircraft on the route
- •The composition and control laws acs
- •The dynamic properties of the system, "acs - the plane" in trajectory control in the horizontal plane
- •The work of acs in continuous-path mode in the horizontal plane
- •The influence of external disturbances on the control of the aircraft in the horizontal plane
- •Speed control of flight
- •Automatic control of the flight altitude
- •Control laws and the principle of automatic control system for managing the flight altitude
- •The dynamic properties of the system, "acs - airplane" mode of stabilization altitude
- •The influence of external disturbances on the control loop height
- •4.Automatic control of the airplane during landing 4.1. Means of providing landing
- •4.2. Control of the airplane during landing
Management practices the center of mass of aircraft on the route
Automated output LA at a given point (goal, AMP, etc.) using the CND may be performed roadway, course and route method, and a combination thereof. The choice of method is determined by the kind of control the trajectory of the aircraft, which is assigned with the goals and solve tactical problems. Track method provides ground speed vector orientation towards a certain goal or waypoint from an arbitrary initial position. With this method, the aircraft displayed at a given point on the line of the shortest path.
Control signal for the ACS is formed as follows (Figure 4):
,
where
the
bearing
of
a
given
navigation
point
is calculated
from
the known
(dead
reckoning) aircraft
position
coordinates
,
and
unknown
(entered
in the onboard
computer
memory)
coordinates
of the point
,
.
Signal given course worked through the channel bank ACS. Foreign exchange method can be considered as a special case of track, when not taken into account the drift angle. In exchange method, the longitudinal axis of the aircraft sent to the navigation point, ie.
.
A distinctive feature of this method is that the trajectory of the CM aircraft, dubbed radiodromii. Radiodromiya characterized in that, because of the wind the aircraft deviates from the original course line connecting the navigation point. Therefore, the aircraft must be constantly turn on target. In the vicinity of the set point delta angle is undergoing drastic changes. Therefore, at some distance from the set point signal set course record. The downside limit and course management is not returning the aircraft to the original line of the path after accidental or deliberate deviations. Output at a given point continues with a new direction. Thus, the line of the actual path may take a random position. Entering the target with a given direction is not provided.
The
essence
of
the method is
a
route
that
the
coordinates
and
length
of
the
route
is
determined by the
line
of
a
given path
(LGP),
the aircraft is
transferred to
the
line and
continues
to
fly
on
it.
Aircraft
control
is
performed
by
one parameter -
the
lateral deviation
,
which
is most
easily
obtained
by
dead
reckoning
in
particular
orthodromic
coordinates.
In
the case of
a
common system
of
coordinates
lateral
deviation
of
LZP
can
be
calculated
as follows
(Figure
5)
,
where
;
;
,
-
Calculus
coordinates
center
of mass motion of the aircraft.
ACS
to
stabilize the
aircraft
to
LZP
uses
signals
and
or
.
Shuttle control method provides flight LZP and access to the target with a given direction. Thus, the motion control of CM in a shuttle flight involves addressing three interrelated tasks :
obtain information on the current status of aircraft (dead reckoning coordinates and correction);
formation of lateral movement of the control signal in the form of aircraft and ;
testing of the control signals.
The first two tasks are solved CND. Testing of the control signals performs ACS (Figure 6)