Abstract :
The control system is a system that can command, direct and manage
components and devices to work as desired. The control system is also present in
aircraft which aims to control the aircraft while in the air, one of which is the
ailerons. The aileron function is to perform rolling movements on the lateral axis,
from this movement there are several types of movements, one of which is the
Dutch roll. When an airplane is moving in the air, the control of the aircraft through
the ailerons becomes unstable due to irregular air (turbulence). Therefore we need
a method to stabilize the problem state so that the aircraft can move smoothly and
safely. Dutch roll is the movement between the rolling control linkage and the
lateral axis caused by the movement of the ailerons. The Dutch roll specification is
known through the parameter data of the lateral motion of the Boeing 747 aircraft.
The parameter data is used to calculate the transfer function value where this value
will be simulated on a simulink to obtain the root locus point. The root locus point
will be used to calculate the damping value which then calculates the lead
compensator value which functions to stabilize the dutch roll control system. The
results of this Dutch roll control system were tested using the lead compensator
method to produce a better level of stability, in testing with the root locus it gets 5
% more stable than without lead compesator, then tested on the bode diagram
analysis to get 10% more stable results than the previous test (root locus), then on
the 5% bode diagram analysis test, got more stable results than the previous bode
diagram analysis test (10 %) and in the bode diagram analysis test 2.5%, the result
is more stable than the previous bode diagram analysis test (5%).