超强台风下“南海奋进”号FPSO系泊能力分析

Mooring Capacity Analysis of “NANHAI FENJIN” FPSO Under Super Typhoon in South China Sea

基于水动力分析理论和三维绕射-辐射理论,采用频域分析方法,对"南海奋进"号FPSO浮体水下部分进行水动力计算。基于水动力分析结果,利用时域半耦合分析法对FPSO进行超强台风下的系泊系统分析,结果表明:"南海奋进"号FPSO在吃水为14.0~14.5m内系泊系统的受力最小,系泊力下降约9%至12%,抗台风能力在该装载状态下最强,临界工况提高到16级。

Based on the theory of hydrodynamic analysis and the theory of three-dimen-sional diffraction-radiation, the hydrodynamic calculation of the underwater par t of the ＂NAN- HAI FENJIN＂ FPSO floating body is carried out by the frequency domain analysis method. Based on the hydrodynamic analysis re sul ts , the semi-infinite coupling analysis method is ap-plied to analyze the mooring system of FPSO under the super typhoon. The results show th at for the “FENJIN” FPSO in the draft within the scope of 14. 0 m-14. 5 m the mooring system bears the smallest force, mooring force decreases by 9% to 12% , the anti-typhoon capacity is the strongest in this loading state , and the critical condition is improved to level 16.