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Filton Low Speed Wind Tunnel

Filton Low Speed Wind Tunnel . Lecture Overview. Why do we need low speed wind tunnel testing Wind tunnel technology Instrumentation overview Expected daily tasks Individual projects Conclusions Questions and answers. Why Low Speed W ind T unnel T esting is Needed.

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Filton Low Speed Wind Tunnel

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  1. Filton Low Speed Wind Tunnel

  2. Lecture Overview • Why do we need low speed wind tunnel testing • Wind tunnel technology • Instrumentation overview • Expected daily tasks • Individual projects • Conclusions • Questions and answers

  3. Why Low Speed Wind Tunnel Testing is Needed • Take of and landing • Refuelling of aircraft in the air • Testing ground effects

  4. Wind Tunnel technology 2

  5. Wind Tunnel technology 3

  6. Wind Tunnel technology 4

  7. Wind Tunnel technology 4 • Details • Date built 1955 • MAX.SPEED 97 m/s, 318 f/s, 218 m.p.h, 188 knots. (0.28 MACH No.) (EMPTY TUNNEL) • 6 - components, electro-mechanical, virtual centre under floor Balance • Fluorescent, Ultra Violet and Photo-floods • Used for tests on Concorde

  8. Wind Tunnel Instrumentation • Analogue to digital conversion • Tail plain pressures • Wing pressures • Fuselage pressures • Modal Temperature • Incidence • Vibration • Control and automation • Pitch • Yaw • Needle valve control for HP air engine simulation

  9. Wind Tunnel Instrumentation • Hardware used • NI instrument DAQ modules • NI PXI Software • PIC Microcontroller • PSI8000 System • GE Druck pressure sensors • Custom Built LOLA Actuator • Software • Lab view • MP Lab IDE • C Compiler • C++ For tunnel specific applications

  10. Wind tunnel Responsibilities • Report writing for every wind tunnel modal • Modal Instrumentation Report • Facility Instrumentation Report • Operations Report • Wind tunnel electrical stock control • Wind tunnel instrumentation support • Modal configuration support • Support from Co workers • Good team spirit • Every one willing to help • Manufacturing team a little hard sometimes

  11. Individual Projects 1 • Remote DVD Controller • PIC Microcontroller • RS232 communications • IR Interface • PWM Output • PCB component design and manufacturer • Modal position DAQ • PIC microcontroller • TCP/IP communication protocol • RS232 capability • 24 bit ADC implementation

  12. Individual Projects 2 • Remote control for DC Motor • Analogue circuit principles • Unipolar switching circuit for two directions • Limit and safety circuit implementation • HP Air (Torbar) DAQ • PIC Microcontroller • 64 bit ADC via SPI • RS232 protocol • TCP/IP Protocol • Time crucial code expectation • Used to test IPEKA Counter rotating prop blades for aircraft

  13. Biggest Success • DAQ Instrumentation for use with real live projects • Worst Mistake • Destruction of actuator costing around £10,000

  14. Most usefull module • Digital Signal Processing-2nd year • Embedded systems -2nd year • Analogue circuit principles -1st year • Least useful module • Group project management

  15. Conclusions • Valuable experience in the work place • Practical experience to enhance the subjects • learnt at UWE • Real sense of being part of a team • Real team work experience • Pressure to meet deadlines • Gave me a real interest in Engineering as a whole • Return job possibilities

  16. Questions ??

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