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Flight Control System Design of a Tail-less UAV

Flight Control System Design of a Tail-less UAVProject Members: Zain Waqar (120101001)Umar Saeed Malik (120101020)Supervisor:Dr. Jamshed RiazExternal Supervisor:Dr. Shakil Ahmed, NESCOMCo-Supervisor: Mr. Hafiz Zeeshan Iqbal Khan

11ContentsBackground Problems & ChallengesAims DeliverablesTimeline BenefitsFuture Projects

2

BackgroundSince the invention of flying vehicles, scientists looked for ways to reduce drag acting on the aircraft.Tail largely contributes to the total parasitic drag.There came the idea of Tailless aircraft.

3Background (Cont.)Further studies showed that tailless aircraft have good stealth characteristics.This made them even more important.Other Advantages are as follows:Greater performance at higher angles of attack.Better at combat manoeuvers.

4Background (Cont.) But the lack of inherent stability let them down.With the advent of modern controls, it was now possible to provide stability artificially.B-2 Spirit Bomber is the most famous example of a tailless aircraft with artificial stability.

55Problems & Challenges Lateral and Longitudinal stability.

Low efficiency of drag ruddersDifferential Configuration of Split Drag-rudders with Variable Bias for Directional Control of Flying-wing (Jahanzeb Rajput, Weiguo Zhang, Xiaobo Qu)

66Problems & Challenges (Cont.)Ground station Work load.

Control A Back-stepping based Flight Control Design for an over-actuated Flying Wing Aircraft (Jahanzeb Rajput, Zhang Weiguo and, Shi Jingping)

Flight Control Design for a Tailless Aircraft Using Eigen-structure Assignment (Clara Nieto-Wire and Kenneth Sobel)

7AimsThe project is aimed at flight control system design for cruise phase of a Tailless UAV. Different controller design schemes would be exploited and evaluated for performance and robustness in lateral and longitudinal channels.

8DeliverablesController for Longitudinal and lateral modes in cruise phase.Control law design implementation and evaluation for performance on non-linear simulation.

9

Timeline

10BenefitsDrag ReductionGood Stealth CharacteristicsLongitudinal and Lateral StabilityAutomation

11Future ProjectsHardware implementation of the project.Flight control system design for other flight segments which include:LandingTake-off

12Thank You 13Q & A14


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