Abstract: : To enhance the transportation safety and reliability of wind turbine blade transport vehicles under heavy load conditions, the article conducts a topology optimization on its device. Using HyperMesh software, a finite element model of the dedicated transport device is established, and the base chassis and main reinforcing plates are optimized through the variable density method. The results show that the maximum displacement (17.05 mm) under full load occurs at the upper part of the quick-release chassis, and the maximum stress (557 MPa) is located at the bolt connection between the quick-release chassis and the slewing bearing. After topology optimization, the overall mass is reduced by 296.2 kg, achieving the goal of lightweighting while meeting the requirements of stiffness and strength. The research results can provide theoretical reference and guidance for the development of wind turbine transport devices.

Key words: blade transport vehicle; dedicated device; mechanical analysis; topological optimization

摘要： 为提高风机叶片运输车辆在重载工况下的运输安全性和可靠性，文章对其装置进行了 拓扑优化。利用 HyperMesh 软件，建立专用运输装置的有限元模型，通过变密度法对基座底 盘和主体加强板进行拓扑优化。结果表明，满载工况下的最大位移（17.05 mm）发生在快拆 底盘上部，最大应力（557 MPa）位于快拆底盘和回转支承的螺栓连接处。拓扑优化后的总体 质量减少了 296.2 kg，在满足刚度和强度的要求下，实现了轻量化的目标。研究结果可为风 机运输装置的开发提供理论参考和指导。

关键词: 叶片运输车辆；专用装置；力学分析；拓扑优化