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.


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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