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Filton Low Speed Wind Tunnel

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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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Presentation Transcript
slide2

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
slide3

Why Low Speed Wind Tunnel Testing is Needed

  • Take of and landing
  • Refuelling of aircraft in the air
  • Testing ground effects
slide8

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
slide9

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
slide10

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
slide11

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
slide12

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
slide13

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
slide14

Biggest Success

  • DAQ Instrumentation for use with real live projects
  • Worst Mistake
  • Destruction of actuator costing around £10,000
slide15

Most usefull module

  • Digital Signal Processing-2nd year
  • Embedded systems -2nd year
  • Analogue circuit principles -1st year
  • Least useful module
  • Group project management
slide16

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
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