Autors: Genov, J. A., Kralov, I. M., Angelov, I. A.
Title: Dynamic stress analysis of a blade of wind turbine generator taking into account vertical wind speed gradient
Keywords: Turbine Blades | Flutter | Momentum Theory

Abstract: The wind turbines are an important part of the decrease in air pollution by reducing carbon dioxide emissions in the air. Increasing their operational reliability and avoidance the occurrence of accidents are extremely important factors for their efficiency and a key task in their design. For the large wind turbines, with power in the order of megawatts, the authors in their research had been obtained, that due to the wind speed change in a vertical direction, arise dynamical variable loads of the turbine blades that are functions of the azimuth angle (the angle of rotation). Also, the longitudinal turbulence of the wind speed introduces additional dynamic excitation. As a result, they cause significant fatigue loads, impaired work performance and reduction of the inter-repair periods, and last but not least, excite a strong increase in the vibration and acoustic emission transmitted to the environment, with all the ensuing harmful consequences.

References

  1. Rao, S.S. Vibration of Continuous Systems (Open Access) (2007) Vibration of Continuous Systems, pp. 1-720. Cited 1050 times. http://onlinelibrary.wiley.com/book/10.1002/9780470117866 ISBN: 0471771716; 978-047177171-5 doi: 10.1002/9780470117866
  2. Rao, S. (2011) Mechanical Vibrations Fifth Edition. Cited 1630 times. Prentice Hall
  3. Hamdi, H., Mrad, C., Nasri, R., Hamdi, A. Static and Dynamic Study of a Wind Turbine Blade with Horizontal Axis (2011) J Environ Sci Eng Technol, 5, p. 1167
  4. Mohammad, F. (2012) Linear and Non-Linear Deformations of a Wind Turbine considering Warping and All Aeroelastic Load Couplings PhD Thesis, Wayne State University
  5. Wang, L. (2015) Nonlinear Aeroelastic Modelling of Large Wind Turbine Composite Blades. Cited 8 times. PhD Thesis
  6. Ganguli, R. Physics based finite element interpolation functions for rotating beams (Open Access) (2016) Proceedings of the Indian National Science Academy, 82 (2), pp. 257-270. Cited 2 times. http://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/2016_Art18.pdf doi: 10.16943/ptinsa/2016/48418
  7. Ganguli, R. (2017) Finite Element Analysis of Rotating Beams – Physics Based Interpolation. Cited 7 times. Springer Science+Business Media, Singapore
  8. Rao, S.S. (2018) The Finite Element Method in Engineering. Cited 609 times. 6th ed. edition. Pearson Education Ltd
  9. Genov, J., Kralov, I., Angelov, I. Blade element momentum theory adaptation taking into account non-uniform, non-stationary wind field (2019) Journal of Environmental Protection and Ecology, 20 (3), pp. 1270-1281.
  10. Kralov, I., Genov, J., Angelov, I. Modified bem theory application for determining the aerodynamic forces acting on the blade of wind turbine (2019) Journal of Environmental Protection and Ecology, 20 (3), pp. 1255-1269.
  11. Younsi, R., El-Batanony, I., Tritsch, J.-B., Naji, H., Landjerit, B. Dynamic study of a wind turbine blade with horizontal axis (2001) European Journal of Mechanics, A/Solids, 20 (2), pp. 241-252. Cited 40 times. doi: 10.1016/S0997-7538(00)01127-X
  12. Bicak, M., Belek, H. Modeling of Rotating Blades for Vibration Analysis (2011) Proceedings of the Inter Noise 2011 Osaka, Japan 4–7 September
  13. Stoychev, G. (2000) Finite Element Method. Cited 3 times. Strength and Deformation Analysis. TU – Sofia, Sofia, (in Bulgarian)
  14. Genov, J., Gilev, B., Slavchev, Y., Venkov, G. Modeling and control of windtTurbine tower vibrations (2010) AIP Conference Proceedings, 1293, pp. 30-38. Cited 13 times. ISBN: 978-073540850-0 doi: 10.1063/1.3515600
  15. Jonkman, J., Butterfield, S., Musial, W., Scott, G. Definition of a 5-MW Reference Wind Turbine for Offshore System Development (2009) Technical Report NREL/TP-500-38060.
  16. Kandeva, M., Kamburov, V., Zadorozhnaya, E., Kalitchin, Z. Abrasion Wear of Electroless Nickel Composite Coatings Modified with Boron Nitride Nanoparticles (2018) J Environ Prot Ecol, 19 (4), p. 1690.
  17. Kandeva, M., Svoboda, P., Kalitchin, Z., Penyashki, T., Kostadinov, G. Wear of gas-flame composite coatings with tungsten and nickel matrix. Part i. abrasive wear (2019) Journal of Environmental Protection and Ecology, 20 (2), pp. 811-822

Issue

Journal of Environmental Protection and Ecology, vol. 20, issue 4, pp. 1970-1986, 2019, Bulgaria, Scibulcom Ltd., ISSN 13115065

Copyright Scibulcom Ltd.

Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus