中文摘要：

建立摩擦式吊卡的有限元仿真模型,通过在吊卡钢模与钢管之间加入内衬材料聚氨基甲酸酯（Polyurethane,PU）以及在内衬层上设计沟槽,提出一种提高吊卡承载能力的优化设计方案.仿真结果验证该方案可行.结果表明：PU层可大幅提高摩擦式吊卡的承载能力;通过在内衬层上设计兼顾提高摩擦力和排水能力的沟槽,也可进一步增强吊卡对海上作业环境的适应能力.

英文摘要：

A finite element simulation model of friction clamp is built. An optimization design scheme for improving hearing capacity of friction clamp is proposed by adding Polyurethane （PU） layers between dies of clamp and steel pipe and designing grooves on the layers. The simulation results verify that the scheme is feasible. The results indicate that, PU layers can significantly improve the hearing capacity of friction clamp; it can enhance the clamp＇s adaptability to offshore-project environment by designing grooves on the layer which can take both improvement of friction and drain ability into account.