OPTIMIZATION OF KEY GEAR PARAMETERS OF NEW VARIABLE PITCH WIND TURBINE BASED ON STATIC ANALYSIS

Wang Peng; Bao Daorina; Wu Shengsheng; Wang Tianbo; Zhang Shaohua; Tang Di

doi:10.19912/j.0254-0096.tynxb.2022-0327

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (7) : 456-462. DOI: 10.19912/j.0254-0096.tynxb.2022-0327

OPTIMIZATION OF KEY GEAR PARAMETERS OF NEW VARIABLE PITCH WIND TURBINE BASED ON STATIC ANALYSIS

Wang Peng¹, Bao Daorina¹, Wu Shengsheng¹, Wang Tianbo², Zhang Shaohua³, Tang Di¹

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Abstract

Taking the new variable pitch wind turbine as the research object, the lightweight optimization design is carried out for the gear and rack components of its variable pitch regulating mechanism. Through finite element analysis, the blade torque and transmission rod thrust at different pitch angles are obtained, and the transmission rod thrust is verified by wind tunnel test method to determine the initial load conditions of gear optimization. Based on SolidWorks, the parametric modeling of gear and rack components was established. The response surface model was established with mass, bending strength of tooth root and contact strength of tooth surface as optimization objectives, and modulus, tooth number and tooth width as design variables. The multi-objective genetic algorithm （MOGA） was used for optimization design. The optimization results show that the mass of the gear rack component is reduced by 43%, the bending stress of the tooth root is increased by 23%, and the contact stress of the tooth surface is reduced by 17%. The optimization makes the pitch adjustment mechanism design of the wind turbine more reasonable.

Key words

wind turbines / gear / variable pitch angle / multi-objective optimization / response surface methhodology

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Wang Peng, Bao Daorina, Wu Shengsheng, Wang Tianbo, Zhang Shaohua, Tang Di. OPTIMIZATION OF KEY GEAR PARAMETERS OF NEW VARIABLE PITCH WIND TURBINE BASED ON STATIC ANALYSIS[J]. Acta Energiae Solaris Sinica. 2023, 44(7): 456-462 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0327

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