Aerodynamic damping in the model of blade

• Autorzy: Pawlak M. , Mężyk A.
• Konferencja: Modelling and optimization of physical systems/International Seminar of Applied Mechanics (9 ; 27.05-29.05.2005 ; Wisła, Polska)
• Języki publikacji: EN

Abstrakty

EN

In this article is presented the modal analysis of the blade in pitch regulated horizontal axis wind turbine. The structural model of the blade is modelled as beam elements in MSC Nastran. As a result of modal analysis are received the mode shapes with the frequencies of blade vibration. Than is made attempt to describe the influence of the aerodynamic damping phenomena on dynamics of the blade. To calculate the wind components and aerodynamic damping coefficients is used the modified blade element momenthum method. The final result is the modal damping expressed by logarithmic decrement in a function of the blade's pitch angle and the free-stream wind velocity.

Słowa kluczowe

EN

wind turbine; wind turbine blade; modeling; aerodynamical damping

PL

elektrownia wiatrowa; skrzydło turbiny wiatrowej; modelowanie; tłumienie aerodynamiczne

• Wydawca: Wydawnictwo Katedry Mechaniki Stosowanej
• Czasopismo: Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
• Rocznik: 2005
• Tom: z. 28
• Strony: 115--120
• Opis fizyczny: Bibliogr. 3 poz.

Twórcy

autor

Pawlak M.

• Department of Applied Mechanics, Silesian University of Technology

autor

Mężyk A.

• Department of Applied Mechanics, Silesian University of Technology

Bibliografia

• [1] Hansen Martin O. L.: Aerodynamics of wind turbines. Published by James & James, London 2002.
• [2] Pawlak M.: Aerodynamic forces and Horizontal Axis Wind Turbines, 6th International Scientific Conference, Applied Mechanics 2004, Slovakia.
• [3] Petersen J. T., Madsen H. A. and others: Prediction of dynamic loads and induced vibrations in stall. Risø-R-1045 (EN). Risø National Laboratory, Roskilde. Denmark 1998.