摘要
以延伸式张力腿平台为例,采用时域耦合分析法研究二阶波浪力对船体以及张力腿、立管的影响。在频域下计算船体结构一阶与二阶波浪力的传递函数,进而在Deepc中模拟海域的波流条件,考虑低频和高频波浪的影响,得到张力腿平台的动力响应和张力腿、立管的动张力值,并与线性的计算结果进行比较,认为在确定张力腿平台锚链的极限承载力和疲劳寿命时,应考虑高频二阶波浪力的影响。
Taking an extended tension leg platform （TLP） for example, a fully-coupled time domain method was adopted to evaluate effects of second order wave forces on the vessel as well as on tethers and risers. The linear and quadratic transfer functions were calculated and then the wave and current conditions were simulated to implement the coupled analysis by DeepC, including LF and HF contributions. The response of the hull and the dynamic tension of the tendons were obtained respectively, which were further compared with the linear results. The authors concluded that the second order wave forces should be considered in estimating the ultimate bearing capacity and fatigue strength of the tendons of TLP.
出处
《船海工程》
2013年第2期103-106,共4页
Ship & Ocean Engineering
