Remote inspection of wind turbine blades using UAV with photogrammetry payload

D. Zhang, K. Burnham, L. Mcdonald, C. Macleod, G. Dobie, R. Summan, G. Pierce

Research output: Contribution to conferenceProceeding

3 Citations (Scopus)
68 Downloads (Pure)

Abstract

Visual Inspection is regularly used as a method of non-destructive testing (NDT) to find defects in large component structures. Wind turbine blades, regularly located in isolated environments, are typically difficult to access. In order to reduce operational and maintenance costs and extend asset lifetime, a project for the remote inspection of blades to accurately assess surface integrity is being undertaken. The remote inspection solution combines an unmanned aerial vehicle (UAV) with a photogrammetry payload to provide visual reconstruction of a blade for a holistic condition overview. Photogrammetric software is used to process the captured images to generate a 3D blade profile. A waypoint guidance algorithm controls the UAV to complete a full blade surface capture at constant distance, minimising motion blur. The results provide an accurate 3D reconstruction of the used blade complete with defects, discontinuities and markings and hence visual inspection using UAV combined with photogrammetry has been successfully implemented.
Original languageEnglish
Number of pages11
Publication statusPublished - 4 Sep 2017
Event56th Annual British Conference of Non-Destructive Testing - NDT 2017 - Telford, United Kingdom
Duration: 4 Sep 20177 Sep 2017

Conference

Conference56th Annual British Conference of Non-Destructive Testing - NDT 2017
CountryUnited Kingdom
CityTelford
Period4/09/177/09/17

Keywords

  • visual inspection
  • NDT
  • non-destructive testing
  • wind turbines
  • turbine blades
  • unmanned aerial vehicles
  • UAVs
  • photogrammetry

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