Videogrammetry is a low cost flexible and accurate near real time method to determine model geometry under load from s
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POC: Gary Fleming Email: [email protected] PowerPoint PPT Presentation


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D Z, inch. 0.08. 0.04. 0. -0.04. -0.08. Videogrammetry to Measure Model Geometry. Non-Metric positioning system. Three-Axis accelerometer system. Force Positioning System. Balance (Inside Fixture). Weight Application Rod. In-Flight. Facilities National Transonic

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POC: Gary Fleming Email: [email protected]

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Videogrammetry is a low cost flexible and accurate near real time method to determine model geometry under load from s

DZ, inch

0.08

0.04

0

-0.04

-0.08

Videogrammetry to Measure Model Geometry

Non-Metric positioning system

Three-Axis accelerometer system

Force Positioning System

Balance

(Inside Fixture)

Weight Application Rod

In-Flight

  • Facilities

  • National Transonic

  • Transonic Dynamics WT

  • 16-Ft Transonic WT

  • Unitary Plan WT

  • 14 by 22 Subsonic WT

  • Basic Aerodynamics Research Tunnel

  • Accuracy

  • Lab: < 0.005°

  • Tunnel: < 0.05°

F/A-18 Active Aeroelastic Wing

(under development)

(collaboration with NASA Dryden)

Applications

  • Main wing element

  • Control surfaces

  • Pitch angle

  • Sting bending

  • Spectral analyses

  • Installation repeatability

  • Aft-body bending

  • Horizontal stabilizer deformation

  • Test section wall deformation

  • Acquisition up to 1 KHz

Model geometry in near real-time with minimal impact

Videogrammetry is a low-cost, flexible, and accurate near real-time method to determine model geometry under load from subsonic to supersonic, with minimal impact to the data acquisition cycle

References: J. of Aircraft Vol. 38, No. 4 and No. 6, 2001; AIAA-2002-2794

POC: Gary Fleming

Email: [email protected]


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