考虑桩土相互作用的海上风电站防撞能力研究

Anti-collision Ability of Offshore Wind Turbine Considering Pile-soil Interaction

桩与土之间的相互作用对导管架式海上风电站结构的防撞能力有较大影响。本文针对不同的地基土特性,利用瞬态仿真程序MSC.Dytran对一艘5000 t多用途工作船撞击海上风电站的动态过程进行了数值计算。计算结果表明,地基土的软硬程度对海上风电站结构的损伤特性、碰撞载荷大小以及结构的能量吸收有比较明显的影响。

Pile-soil interaction has great influence on the anti-collision ability of offshore wind turbines.By using the transient simulation program MSC.DYTRAN,the dynamic process of a 5000t multi-purpose working ship impacting an offshore wind turbine in the lateral direction is numerically calculated based on different characteristics of foundation soil.Calculation results show that soil rigidity has obvious influence on the structural damage characteristics,collision load and energy absorption of offshore wind turbines.