达里厄垂直轴风力发电机风轮结构转动惯量大、起停比较频繁，对其机械结构安

The Darius vertical axis wind turbine has a large rotating inertia and frequent start and stop, which requires high safety and reliability of its mechanical structure, and it is of great significance to carry out analysis of its mechanical structure performance. Establish the FEA model of the wind wheel structure, and determine the weak links of the wind wheel structure through the static analysis of its typical working conditions; through the wind wheel structure under the random wind load, the system's wind vibration response characteristics and the periodic wind load excitation system The nonlinear vibration characteristics provide a basis for the overall mass distribution and local structural modification of the wind wheel structure. The structural analysis method of the vertical axis wind turbine wind wheel proposed in this paper has strong theoretical significance and reference value for improving the wind turbine operation reliability and structural analysis method.

达里厄垂直轴风力发电机风轮结构转动惯量大、起停比较频繁，对其机械结构安全可靠性要求很高，开展其机械结构性能分析具有重要意义。建立风轮结构的FEA模型，通过其典型工况结构静力学分析确定风轮结构的薄弱环节；通过风轮结构在随机风载荷作用下系统的风振响应特性和周期性风载激励作用下系统的非线性振动特性，为风轮结构整体质量分布及局部结构修改提供依据。本文提出的垂直轴风力机风轮的结构分析方法对于提高风力机运行可靠性以及结构分析方法具有较强的理论意义和参考价值。

Due to the large moment of inertia and frequent starting and stopping of wind turbine structure, the safety and reliability of its mechanical structure are highly required, so it is of great significance to carry out the performance analysis of its mechanical structure. The FEA model of the wind turbine structure is established, and the weak link of the wind turbine structure is determined by the static analysis of its typical working condition structure; the wind-induced response characteristics of the wind turbine structure under the random wind load and the nonlinear vibration characteristics of the system under the periodic wind load excitation provide the basis for the overall quality distribution of the wind turbine structure and the modification of the local structure. The structural analysis method of vertical axis wind turbine proposed in this paper has strong theoretical significance and reference value for improving the operation reliability and structural analysis method of wind turbine.