风能作为一种清洁能源具有较大发展潜力。然而，在寒冷潮湿环境下，风力机叶片容易出现覆冰现象，导致风机支撑结构的整体力学性能发生变化。重点关注风力机叶片覆冰后支撑结构的冰振特性，为优化风电系统设计和提高结构安全性提供参考。首先，采用FENSAP-ICE软件模拟叶片覆冰过程，以明确不同环境条件下风机叶片覆冰特性。其次，采用增加质量和改变质心位置的等效质量分布方法，建立风机叶片覆冰后支撑结构的冰振响应分析方法。通过模拟研究，明确了不同环境条件下风机叶片覆冰的特性，并建立了支撑结构冰振响应分析方法。同时，选取单桩式海上风电基础结构，对不同风机叶片覆冰情况下支撑结构的力学性能进行了详细分析。3种覆冰工况与未覆冰工况下的基频结果表明，1号叶片覆冰时支撑结构一阶频率下降了0.87%，2、3号叶片覆冰时支撑结构一阶频率下降了0.23%，三叶片同时覆冰时支撑结构一阶频率下降了0.48%。

Wind energy, as a clean energy source, has great development potential. However, in cold and humid environments, wind turbine blades are prone to icing, which leads to changes in the overall mechanical performance of the wind turbine support structure. The ice-induced vibration characteristics of wind turbine support structures after blade icing was focused on, so as to provide references for optimizing wind power system design and enhancing structural safety. Firstly, the FENSAP-ICE software was employed to simulate the blade icing process to clarify the characteristics of wind turbine blade icing under different environmental conditions. Secondly, an equivalent mass distribution method, which involves adding mass and altering the center of mass, was utilized to establish an ice-induced vibration response analysis method for wind turbine support structures after blade icing. Through simulation studies, the characteristics of wind turbine blade icing under different environmental conditions was defined and an analysis method for support structure ice-induced vibration response was established. Moreover, a certain single-pile offshore wind turbine foundation structure was selected for a detailed analysis of the mechanical performance under different blade icing conditions. Results from three icing conditions and the non-icing condition show that the first-order frequency of the support structure decreases by 0.87% when blade 1 is iced, by 0.23% when blades 2 and 3 are iced, and by 0.48% when all three blades are iced.