ANALYSIS AND OPTIMIZATION DESIGN OF SUPPORT STIFFNESS OF FLOATING COMPONENTS OF WIND TURBINE GEARBOX

Tian De; Hu Yue; Tao Lizhuang

doi:10.19912/j.0254-0096.tynxb.2022-0418

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (4) : 195-202. DOI: 10.19912/j.0254-0096.tynxb.2022-0418

ANALYSIS AND OPTIMIZATION DESIGN OF SUPPORT STIFFNESS OF FLOATING COMPONENTS OF WIND TURBINE GEARBOX

Tian De, Hu Yue, Tao Lizhuang

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Abstract

Taking two-stage planetary and one-stage parallel shaft gearbox of the 9 MW offshore wind turbine as the research objective, the multi-body dynamic model for the gearbox is established by using the lumped parameter method. The impact of support stiffness of the floating sun gear and ring gear on the load-sharing of the two-stage planetary and the vibration characteristics of the floating components were researched. Based on the orthogonal test method, the influence of the support stiffness on the vibration of transmission shafts was obtained and the optimization design was carried out. The results show that the support stiffness of the floating components significantly affects the vibration characteristics of the gearbox in the range where the two-stage load sharing coefficient is sensitive to the support stiffness. Compared with only considering the load sharing characteristics, the overall vibration index of the gearbox is reduced by 8.9% after optimization.

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offshore wind turbines / dynamic analysis / vibration / gearbox / support stiffness

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Tian De, Hu Yue, Tao Lizhuang. ANALYSIS AND OPTIMIZATION DESIGN OF SUPPORT STIFFNESS OF FLOATING COMPONENTS OF WIND TURBINE GEARBOX[J]. Acta Energiae Solaris Sinica. 2023, 44(4): 195-202 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0418

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