Design and flight-testing of non-linear formation control laws

Development of a compression system dynamic simulation code for testing and designing of anti-surge control system

In recent years, several research activities have been conducted to develop knowledge in analysis, design and optimization of compressor anti-surge control system. Since the anti-surge control testing on a full-scale compressor is limited to possible consequences of failure, and also the experimental facility can be expensive to set up control strategies and logic, design process often involves...

Optimal nonlinear control of flight faults in manned aircrafts in the presence of fault and failure of control actuato

Control actuators' faults are among the major reasons to lose aircraft control while flights. The plane dynamics is severely dependent upon faults and errors in flight control systems and if the reformed control order is not issued by the fault tolerant controller there would be unpleasant outcomes such as inconsistency and the reduction of system performance and some dreadful aerial accide...

Near - Optimal Tunning of Linear Controllers Based on Genetic Algorithm and Swarm Intelligence: A Flight Control Example

Linear Parameter Varying Control for the X-53 Active Aeroelastic Wing

Fuel efficiency, endurance, and noise requirements are pushing modern aircraft to lighter, more flexible designs. This causes the structural modes to occur at lower frequencies increasing the coupling with the rigid body dynamics. The traditional approach to handle aeroservoelastic interaction is to design gain-scheduled flight control laws based on the rigid body dynamics and then use filters ...

Static and Dynamic Wind Tunnel Testing of Air Vehicles In Close Proximity

Bihrle Applied Research Inc. has developed unique capabilities for investigating the aerodynamic effects on aircraft in close formation. Wind-tunnel experiments were conducted at the Langley Full-Scale Tunnel using special hardware and computer equipment developed specifically for formation testing. It was demonstrated that static and dynamic force and moment data, as well as surface pressure d...