ZP350D自升式钻井平台桩腿围阱区域的细化研究与设计

自升式钻井平台的桩腿围阱区域是指船体与桩腿固定，相接触的区域。一般在总体强度计算中，对桩腿围阱区域的结构都作较大的简化，故计算刚度与真实刚度有一定误差，从而影响到桩腿围阱区域附近的节点位移与应力。因此，为了得到更接近真实值的应力，本文在总体有限元模型的基础上，对桩腿围阱区域进行局部细化，通过对计算结果的进一步分析，对桩腿围阱区域进行了相应的结构优化设计，最后得出了具有实用价值的结论。

Fine Mesh Research and Design for the Leg Wells of the Self-elevating Drilling Unit ZP350D

The leg wells of the self-elevating drilling unit were the area where the hull connected or contacted with the legs. Generally in global structure strength analysis,the structures of the leg wells were mostly simplified. Because the calculated rigidity had some discrepancies with the actual rigidity,it would influence the nodal displacement and the stress. In order to get the stress exactly to the reality,the leg wells had been fine meshed base on the global finite element model. Through more detailed analy...