NDT.net - September 2002, Vol. 7 No.09

REAL-TIME EVALUATION OF WIND TURBINE BLADES WITH ACOUSTIC EMISSION MONITORING DURING CERTIFICATION TESTS

A. A. Anastassopoulos, D. A. Kouroussis
Envirocoustics S.A., Athens, Greece, www.envirocoustics.gr, tech@envirocoustics.gr
A. G. Dutton, M. J. Blanch
Energy Research Unit, CLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon. OX11 0QX, UK
P. Vionis, D. J. Lekou
CRES, Wind Energy Department, 19th km Marathon Avenue, Pikermi 19009, Attiki, Greece
D R V van Delft, P. A. Joosse
Delft University of Technology, WMC-Group, Stevinweg 1, 2628 CN Delft, The Netherlands
A. Proust
Euro Physical Acoustics SA, ZAC des Portes de Sucy, 27 rue Magellan, Sucy-en-Brie F-94373, France
T. P. Philippidis
Dept of Mechanical Engineering & Aeronautics, University of Patras, P.O.Box 1401, Patras 265 00, Greece
T Kossivas
Geobiologiki S.A., 62 Thrakomakedonon Str, 136 71 Acharnai, Athens, Greece
G Fernando
Engineering Systems Department, Cranfield University (RMCS), Shrivenham, Swindon SN6 8LA, UK
Corresponding Author Contact:
Email: dak@envirocoustics.gr , Web: www.envirocoustics.gr

ABSTRACT

1. INTRODUCTION

DERIVATION OF THE GRADING METHOD

ANALYSIS OF SMALL BLADE #7

ANALYSIS OF LARGE BLADE #1

CONCLUSIONS

REFERENCES

  1. IEC 61400-1, Wind turbine generator systems - part 1: safety requirements, 1998.
  2. IEC 61400-23 TS Ed.1: Wind turbine generator systems - part 23: Full scale structural testing of rotor blades for WTGS's, draft 1999.
  3. Joosse, P., A., Blanch, M., J., Dutton, G., A., Kouroussis, D., A., Philippidis, T., P., Vionis, P., "Acoustic Emission Monitoring Of Small Wind Turbine Blades", 21st ASME Wind Energy Symposium, 14-17 January 2002, Reno, U.S.A.
  4. Blanch, M., J., et al, "Analysis of Acoustic Emission, Acousto-Ultrasonic and Infra Red Thermography Data from Ten Small Wind Turbine Blade Tests", Global Windpower, 2-5 April 2002, Paris, France.
  5. Nikolaidis, V., N., Kouroussis, D., A., Anastassopoulos, A., A., "AEGIS Software Manual", Envirocoustics A.B.E.E. Technical Report, Ref:TR-015-10/2000, Athens, October 2000.
  6. Philippidis, T. P., Nikolaidis, V. N., Anastassopoulos, A. A., "Damage Characterisation of C/C laminates using Neural Network Techniques on AE signals", NDT&E International, Vol. 31, No 5, Elsevier 1998, pp. 329-340.
  7. Anastassopoulos, A. A., Nikolaidis, V. N. and Philippidis, T. P., "A Comparative study of Pattern Recognition Algorithms for Classification of Ultrasonic Signals", Neural Computing & Applications, 1999, Vol. 8, pp 53-61.

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