海洋管道直接漂浮拖运分析

Analysis on directly towing of floating pipeline

本文在分析海洋管道铺设过程中管段直接漂浮拖运状态的基础上,提出了一种分析计算模型,并选用正交多项式(切比雪夫多项式)为试函数,由加权残数法求解一高度非线性微分—积分方程,获得了该问题的近似解。文末,用算例说明了某海洋管道施工中用直接漂浮拖运时,各施工参数的确定方法。

This paper, based on analysing the state that floating offshore pipeline is directly pulled, put forward a kind of analysis and calculation model, and used the Che-bychev polynomial as trial function, determinated a high-order non-linear differential-integral equation by means of method of weighted Residuals and get the approximate solution. Finally, the determinating, method of pulling parameters is shown by an example when the floating pipeline is directly pulling.