Along with the technology development of ocean resources, offshore platforms are gradually becoming larger and more complex. Recent development of the oil and gas field in the deep-water region often involves multiple floating platforms adjacent to each other to perform more complex functions for oil and gas production. This paper describes the investigation carried out on the dynamic responses of a two platforms system containing a Tension Leg Platform (TLP) and a tender assisted drilling (TAD) with a flexible connection between the two platforms. The mooring lines and tendons are taken into consideration in the coupled analysis of the multi-body platform’s system. The motion responses and wave load characteristics on the two platforms in multi-body coupled model are investigated in the numerical simulation. Compared to the situation of the two platforms in isolation, it is revealed that the motion responses for the two platforms in coupled model are altered by the combined effects of the platforms’ interaction and constrain by the connection. The interaction between platforms can increase both the first- and second-order wave force on platforms in the arrangement direction of two platforms. Quantitative analysis demonstrates their relative importance and thus provides much-needed guidance in practical design of the coupled system.

随着海洋资源技术的发展，海上平台逐渐变得越来越大、越来越复杂。深水区油气田的近期开发往往涉及多个相邻的浮动平台，以执行更复杂的油气生产功能。本文描述了对包含张力腿平台 (TLP) 和投标辅助钻井 (TAD) 的两个平台系统的动态响应进行的调查，两个平台之间具有灵活的连接。在多体平台系统的耦合分析中考虑了系泊线和腱。数值模拟研究了多体耦合模型中两个平台的运动响应和波浪载荷特性。与两个平台孤立的情况相比，耦合模型中两个平台的运动响应受到平台相互作用和连接约束的综合影响而改变。平台之间的相互作用可以增加平台在两个平台排列方向上的一阶和二阶波浪力。定量分析证明了它们的相对重要性，因此为耦合系统的实际设计提供了急需的指导。平台之间的相互作用可以增加平台在两个平台排列方向上的一阶和二阶波浪力。定量分析证明了它们的相对重要性，因此为耦合系统的实际设计提供了急需的指导。平台之间的相互作用可以增加平台在两个平台排列方向上的一阶和二阶波浪力。定量分析证明了它们的相对重要性，因此为耦合系统的实际设计提供了急需的指导。