Innovative Ultrasonic Wind Rotor Blade Inspection

The quality of glass- and carbon fiber reinforced composite structures in wind turbine blades is an important topic for both manufactures and turbine operators. However, quality assessments of rotor blades have been a challenge for the entire wind community due to: (1) lack of inspection standards, (2) a demand for a more cost effective production and (3) a limited accessibility to the blades. The paper discusses a number of non-destructive automated ultrasonic solutions for inspection of the wind rotor blade throughout its lifetime. Different aspects of automated ultrasonic inspection are discussed addressing problems related to the design, manufacturing and operation of wind rotor blades. It is concluded that quality assessments of wind rotor blades will benefit from automated ultrasonic inspection throughout their lifetime.

References
  1. S.A. Nielsen and M. Troedsson, “Advancements in non-destructive testing of wind rotor blades,” Proceedings of the 53rd Annual Conference of the British Institute for Non-destructive testing (BINDT 2014), ISBN: 9781634395038, Manchester, UK, September 9-11, 2014, Curran Associates, pp. 1-10.
  2. ASTM E2580 – 12. Standard practice for ultrasonic testing of flat panel composites and sandwich core materials used in aerospace applications.
  3. S.A. Nielsen, M. Troedsson, O. Olsdal, and L. Jeppesen, “Reliable automated NDT of wind rotor blades,” Proceedings of the 11th European Conference on Non-Destructive Testing (ECNDT 2014), ISBN: 9781634395045, Prague, Czech Republic, October 6-10, 2014, Curran Associates, Vol 3, pp. 2063-2072.
  4. P-scan Stack System and scanners (www.P-scan.com)
  5. M. Troedsson, Application of Viable Inspection Methods for On-Site Blade Assessment, Windpower Monthly, Blade Inspection, Damage & Repair Forum, 2013.
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