中文摘要：

应用三维集中质量模型，考虑重力、浮力、流体拖曳力、拉力、惯性力、剪切力及弯曲刚度、海床作用等对缓波形立管的特性的影响，考察缓波形立管与传统悬链线立管在有效张力、弯矩、剪力等分布上的差异。着重分析了应用于2000m 水深干树半潜平台的缓波形立管在平台慢漂作用下疲劳特征点-顶端节点有效张力的变化趋势，平台运动对立管顶端有效张力的频域响应影响，以及平台的动态特性对立管疲劳特征点时域响应的影响。

英文摘要：

A three-dimensional lump-mass method was applied in investigating effects of gravity, buoyancy, drag force, tension, inertial force, shear force, bending moment and the interaction between the seabed and the riser. In terms of distributions of configuration, effective tension, bending moment and shear force, a comparison between traditional steel catenary riser and lazy-wave catenary riser were carried out. Influence of slow drift and dynamic motion of the platform on the effective tension at the topmost point are focused on. In addition, time history of the effective tension and response to motions of the platform in frequency domain at the topmost point was carried out.