STUDY ON STRESS STRAIN CHARACTERISTICS OF VARIABLE ECCENTRIC DISTANCE WIND TURBINES

Bao Daorina; Liu Xujiang; Wang Shuailong; Liu Jiawen; Liu Dong; Wu Shengsheng

doi:10.19912/j.0254-0096.tynxb.2020-0914

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (5) : 296-304. DOI: 10.19912/j.0254-0096.tynxb.2020-0914

STUDY ON STRESS STRAIN CHARACTERISTICS OF VARIABLE ECCENTRIC DISTANCE WIND TURBINES

Bao Daorina, Liu Xujiang, Wang Shuailong, Liu Jiawen, Liu Dong, Wu Shengsheng

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Abstract

For the new variable eccentric distance wind turbine, the influence of eccentric distance on the force of wind turbine, tower barrel and side-bias regulation mechanism is studied by numerical simulation and experimental testing. The results show that under the condition of increasing the inflow wind speed, the variable eccentric distance wind turbine can reduce the blade force by increasing the eccentric distance. The maximum stress on the blade at the right eccentric distance of 100 mm is 86% of the uneccentric distance of the wind turbine. As the eccentric distance increases, the trend of force growth in the tilt direction of the tower slows down. Influenced by the increase of the angle of the wind wheel, the pressure of the tower barrel in the direction of the side bend is continuously increasing. In the process of increasing the distance to the right eccentricity, the stress and strain of the side adjustment mechanism of the wind wheel gradually concentrate to the right, and the maximum stress and strain are always in the middle area. The results verify the feasibility and safety of eccentric distance regulation methode.

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wind turbines / stress / aerodynamics / numerical simulation / load / eccentric distance

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Bao Daorina, Liu Xujiang, Wang Shuailong, Liu Jiawen, Liu Dong, Wu Shengsheng. STUDY ON STRESS STRAIN CHARACTERISTICS OF VARIABLE ECCENTRIC DISTANCE WIND TURBINES[J]. Acta Energiae Solaris Sinica. 2022, 43(5): 296-304 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0914

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