PERFORMANCE ANALYSIS OF BLADE ROOT CONNECTION BASED ON PARAMETRIC MODELING

Abstract

Abstract: In view of the existing 2 MW wind turbine blade, the geometry structure and layer condition, were analyzed. The geometry dimension of every metal part connected with the blade root was set, the parameterized geometric model of wind turbine blade root connection was found through MATLAB and ANSYS secondary development, and material properties, grid mesh and contact pairs were set automatically. Based on GL 2010 standard load calculation results, the ultimate load condition of blade root was extracted, the nonlinear solution of the model was carried out according to the load step automatically under the maximum pretension force of bolt, and the load factor of bolt is obtained. The static strength of blade root bolt was validated according to VDI 2230 standard, the stress concentration effect in the drilling area was considered, the static strength of the composite material part of the blade root was validated and analyzed. The results show that the design of blade root connection could meet the ultimate load condition. The research analyzes the static performances of blade root connection every component comprehensively, which lays the foundation for the design of blade root connection to be optimized further.

Key words: wind turbine blade, parameterization, bolt, composite material, static strength analysis

CLC Number:

TB332

JIANG Chuan-hong, ZHANG Shi-qiang, PANG Xiao-ping, GU Duan. PERFORMANCE ANALYSIS OF BLADE ROOT CONNECTION BASED ON PARAMETRIC MODELING[J]. Composites Science and Engineering, 2020, 0(8): 32-37.

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