In this paper, one of the foundations of wind turbine in a wind farm is taken as an example. Through ABAQUS three-dimensional finite element analysis software, the plastic damage model is used to simulate the reinforcement effect of different schemes, which provides theoretical support for the foundation reinforcement design of actual wind turbine. By comparing and analyzing the changes of maximum stress, damage degree and reinforcement stress of foundation after reinforcement of ring beam with different sizes, it is found that increasing the height of ring beam can effectively improve the bearing capacity of foundation structure, and increasing the width of ring beam can improve the bearing capacity of foundation structure to a certain extent. When the height of ring beam is 1.2 m and the width is 0.6 m, the reinforcement effect is the best which is verified in practical engineering. It is suggested that the finite element method should be used to simulate different reinforcement schemes, compare the reinforcement effects and determine the optimal reinforcement scheme.
Key words
wind turbines /
ABAQUS /
reinforcement /
damage degree /
ring beam
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