13-04-2012, 01:39 PM
Aircraft arrester barrier system
aircraft.pdf (Size: 777.73 KB / Downloads: 140)
Various parts of AABS:-
Stanchion system
Energy Absorber System
Tape retrieval system
Tape and suspension system
Electrical systems and their Control systems
Problems of Existing Energy Absorbing System:-
There is no control on braking torque of Existing energy absorbing System.
The Existing EAS is highly nonlinear in nature. The initial braking torque is very high but once it starts
rotating, torque reduces to a significant low value.
For different types of aircrafts (weights) needs different aircraft arrester barrier systems or modified
energy absorbing system (i.e. different drum diameters).
All the energy is wasted in the form of heat.
Engagement with Barrier
As anticipated, the Smart Probes did collect a number of vertical
webbing elements as the nose of the aircraft passed through the
barrier during the engagement phase.
Below shows the vertical net elements (in green) caught around the
Smart Probes and the horizontal webbing strips (in red) becoming
detached from the steel Centre Support Cable and being dragged
downwards onto the front of the canopy.
Conclusion:-
In conclusion this study has demonstrated the successful application of advanced finite element modeling techniques to the
simulation of a high-speed impact event between an aircraft and a runway barrier net.
A total of eighteen combinations of approach velocity, aircraft AUM, and aircraft approach/yaw angle and engagement
position in relation to center line of barrier were analyzed during the course of this study.