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Fly By Wire

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Fly By Wire

  1. 1. T.E. MINI PROJECT Design and Fabrication of Fly-by-Wire System for Flight Control JUBIN GOEL (T8023065) ANKIT KARMAKAR (T8023069) YOGESH SONULE (T8023155) Internal Guide – Prof. Alwin Anuse
  2. 2. Wire By Fly FLIGHT USING ELECTRONIC CONTROL
  3. 3. HOW DOES IT WORK  Input from various Pilot Controls:  Steer Column  Foot Pedals  Throttle Control is taken in the form of analog inputs, converted to electronic signals which is sent via the Flight Computer to the actuators controlling the Flight Surfaces.
  4. 4. CURRENT TRENDS Almost all Military and Civil Aircraft are now using this technology. State-of-the-Art military aircraft like the F-22 Raptor of the USAF and milestone civilian aircraft like the A380 from Airbus rely on highly advanced FBW systems. Power-By Wire Fly-By Optics
  5. 5. SCOPE Fly-By Wireless FBW systems are under test for incorporation with REMOTE FLIGHT ASSISTANCE SYSTEMS in case of emergencies. More sophisticated and ‘SMARTER’ Flight Computers for increased performance and safety.
  6. 6. The 3 Critical Flight Parameters that we need to control YAW MOVEMENT PITCH MOVEMENT ROLL MOVEMENT
  7. 7. How do we do it? We have attached 3 servo-motors with three wooden ‘wings’. By sending precise ON-OFF Pulse trains to the servo, we plan to move the Elevators and the Rudder of the model, to and fro of the stable position. The magnitude and direction of these movements will be determined by the use of 6 Push-switches.
  8. 8. BLOCK DIAGRAM UP DOWN RIGHT LEFT BANKING LEFT RIGHT BANKING A T M E G A 8 M1 => Left Wing Flap M2=> Right Wing Flap M3 => Tail-plane Motor Motor Motor M1 M2 M3
  9. 9. SYSTEM ALGORITHM START INITIALIZE I/P & O/P OF µC INITIALIZE ALL SERVOS TO THEIR INITIAL POSITIONS SCAN ALL JOYSTICK KEYS GET KEYCODE OF RESP. KEY PRESSED ROTATE SERVOS TO DESIRED POSITIONS & HOLD UNTILL KEY IS RELEASED
  10. 10. COMPONENT SELECTION CRITERIA  µController: ATMEGA8 1. 3 PWM control required 2. Compactness of circuit 3. Resources available – availability of hardware and software needed for programming and construction of ckt. 4. 6 Analog Inputs 5. Cost-effective
  11. 11. Actuator: SERVO MOTOR – FUTABA S3003 1. Positioning Control by rotation around an axis 2. Precise control over rotary movement 3. Reasonable power consumption 4. Lightweight 5. Sufficient Torque 6. Market availability in case of Damage or needed replacement. COMPONENT SELECTION CRITERIA
  12. 12. SIMULATION IN PROTEUS
  13. 13. SIMULATION WAVEFORMS
  14. 14. SYSTEM SPECIFICATIONS  Input Power Supply: DC 12V, 2A µController: ATMEGA8 System Operating Frequency: 1MHz (Internal Clock) Servo Ratings: 4.8V-6V, 500mA Servo Motor Frequency: 414.66Hz Joystick Input Voltage: 5V DC Servo Motor Rotation Range: -30˚to +30˚ w.r.t. horizontal level
  15. 15. RESULT DISCUSSION Type of Aircraft Rotation Range Commercial Airliners (-14˚ to 14˚) Fighter Jets (-35˚ to 35˚) Our Prototype (-30˚ to 30˚)
  16. 16. REFERENCES Websites: 1. www.electronics-lab.com 2. www.et06.com/atmega_timers 3. www.avrfreaks.net 4. www.extremelectronics.co.in Books: The AVR Microcontrollers and Embedded Systems Using Assembly And C -By Muhammad Ali Mazidi Sarmad Naimi Sepher Naimi
  17. 17. THANK YOU…

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