Parametric modeling and strength analysis of large-size wind turbine blades embedded root connection

doi:10.19936/j.cnki.2096-8000.20221028.003

Abstract

Abstract: A finite element modeling script for wind turbine blade embedded root connection was developed based on Python, through the parameterized geometric model of the wind turbine blade embedded root connection, the material properties, contact settings, grid mesh and loads constraint were set automatically, and realized the parameterized finite element modeling of the wind turbine blade embedded root connection. The pretension is applied to the blade bolt and hub bolt by finite element analysis software. Under the pretension and the external loads, contact nonlinear calculation is performed according to the finite element calculation results. The static and fatigue strength of the embedded root connection bolt and insert connection in laminate is analyzed through GL 2010 and VDI 2230 standard, providing guidance for the wind turbine blade embedded root connection design optimization. Embedded root connection finite element modeling script developed on Python significantly shortened the detail design and structural strength verification cycle of the wind turbine blade embedded root connection.

Key words: embedded root connection, parametric modeling, Python, finite element analysis

CLC Number:

TB332

WANG Zhen-gang, TANG Xue, JIANG Chuan-hong, LI Xiao, ZHANG Shi-qiang, XIE Lei. Parametric modeling and strength analysis of large-size wind turbine blades embedded root connection[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(10): 20-24.

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