BCC点阵结构优化及防撞应用

Optimization on BCC Lattice Structure and Its Anti-collision Application

为研究优化后的BCC点阵结构在海上风力发电机单桩基础碰撞中的应用,设计了一种防撞装置模型。基于Workbench分析平台,对BCC点阵结构的单胞尺寸进行多目标优化,并将优化前后的仿真结果进行对比,验证了优化尺寸的可靠性;利用渐进均匀化理论,建立BCC点阵结构等效模型,对比分析海上风力发电机单桩基础防撞装置模型在碰撞中的仿真性能。研究表明,该防撞装置不仅具有缓冲性,还能有效减少单桩基础遭遇碰撞后的损伤程度。

In order to study the application of optimized BCC lattice structure in single pile foundation collision of offshore wind turbine,an anti-collision device model is designed.Firstly,based on the Workbench analysis platform,the unit cell size of the BCC lattice structure is optimized by multi-objective method,and the simulation results before and after optimization are compared to verify the reliability of the optimized size.Subsequently,the equivalent model of BCC lattice structure is established by using the asymptotic homogenization theory,and the simulation performance of the anti-collision device model of single pile foundation of offshore wind turbine in collision is compared and analyzed.The research shows that the anti-collision device not only has buffering property,but also can effectively reduce the damage degree of single pile foundation after collision.