CAJ | 학술논문

为了研究超深水S型海底管道铺设时管道截面的局部变形及应力分布，以“海洋石油201”铺管船为例，首先建立“铺管船－托管架－管道－海底”的整体铺管模型，计算托辊支撑处管道承受的荷载组合：弯矩、轴力、剪力和托辊反力。再建立“托辊－管道”相互作用的局部精细有限元模型，计算了上弯段管道截面的局部变形和应力分布。研究结果可为超深水大口径S型铺管船的极限铺设能力分析提供参考。
위료연구초심수S형해저관도포설시관도절면적국부변형급응력분포，이“해양석유201”포관선위례，수선건립“포관선－탁관가－관도－해저”적정체포관모형，계산탁곤지탱처관도승수적하재조합：만구、축력、전력화탁곤반력。재건립“탁곤－관도”상호작용적국부정세유한원모형，계산료상만단관도절면적국부변형화응력분포。연구결과가위초심수대구경S형포관선적겁한포설능력분석제공삼고。
In order to study the local deformation of the pipe cross?section and stress profile during ultra?deepwater S?lay operation, the present paper builds a "vessel?stinger?pipe?seabed" HYSY 201 model to calculate the com?bined loadings of overbend pipe at the supporting roller:bending moment, axial force, shear force and roller reac?tion force. Then a locally refined "pipe?roller" interacted FEM model was constructed with Abaqus to obtain the cross?sectional stress profile and strain distribution of the upper bent pipe. The results can offer references for analy?sis of the S?lay operation of deepwater large diameter pipe under extreme conditions.