Open AccessAnalyses of Dynamic Behavior of Vertical Axis Wind Turbine in Transient Regime
Author(s) -
Bacem Zghal,
Imen Bel Mabrouk,
Lassâad Walha,
Kamel Abboudi,
Mohamed Haddar
Publication year - 2019
Publication title -
advances in acoustics and vibration
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 14
eISSN - 1687-627X
pISSN - 1687-6261
DOI - 10.1155/2019/7015262
Subject(s) - aerodynamics , transient (computer programming) , torque , turbine , control theory (sociology) , mechanics , rotor (electric) , rotational speed , vertical axis wind turbine , stiffness , engineering , structural engineering , physics , computer science , mechanical engineering , control (management) , artificial intelligence , thermodynamics , operating system
In this paper, the dynamic behavior of a one-stage bevel gear used in vertical axis wind turbine in transient regime is investigated. Linear dynamic model is simulated by fourteen degrees of freedom. Gear excitation is induced by external and internal sources which are, respectively, the aerodynamic torque caused by the fluctuation of input wind speed in transient regime and the variation of gear mesh stiffness. In this study, the differential equations governing the system motion are solved using an implicit Newmark algorithm. In fact, there are some design parameters, which influence the performance of vertical axis wind turbine. In order to get the appropriate aerodynamic torque, the effect of each parameter is studied in this work. It was found that the rotational speed of the rotor shaft has a significant effect on the aerodynamic torque performance.