FPSO型采油平台附加质量与阻尼力的分析研究

摘要

文章应用边界积分方程的方法研究了FPSO型采油平台的附加质量和阻尼力问题.计算中应用了有限水深格林函数并采用高阶边界元对边界积分方程进行离散计算.研究揭示了FPSO在奇模态运动(纵荡-垂荡-纵摇)和偶模态运动(横荡-横摇-首摇)时附加质量和阻尼力的变化规律.附加质量和阻尼力的计算结果在高频情况下仍具有很好的收敛精度,可作为FPSO型采油平台在设计和使用过程中的荷载分析依据.%An integral equation approach is utilized to investigate the added mass and damping of FPSO type platform.The finite water depth Green's function and higher-order boundary element method are used to solve integral equation. Numerical results about added mass and damping are presented for even mode motion (surge-heave-pitch) and odd mode motion (sway-roll-yaw) of FPSO. The results show robust convergence in high frequency range and can be used in wave load analysis in FPSO designing and operation.