CAJ | 학술논문

软刚臂单点系泊FPSO是浅水油田广泛采用的油气开采设备。为研究单点系泊系统的受力性能，针对一艘作业于浅水油田的16万吨级软刚臂单点系泊FPSO，在线性三维势流理论的基础上，基于多体动力学方法建立FPSO-系泊腿-软刚臂的耦合模型，在时域内计算软刚臂单点系泊系统（SYMS）的动力响应特性；并进行软刚臂单点系泊系统参数敏感性分析，研究软刚臂系泊系统的系泊点高度、系泊刚架高度、软刚臂长度、系泊腿长度、压载舱重量等设计参数的变化对系统动力响应性能的影响。结果表明：单点载荷和系泊腿轴向载荷随着系泊点高度、系泊刚架高度和压载重量的增加先减小后增大，而随着软刚臂长度、系泊腿长度的增加则是先增大后减小；且单点载荷对软刚臂长度和压载重量这2个参数的变化最为敏感，而系泊腿轴向载荷则对系泊刚架高度、软刚臂长度这2个参数的变化最为敏感。
연강비단점계박FPSO시천수유전엄범채용적유기개채설비。위연구단점계박계통적수력성능，침대일소작업우천수유전적16만둔급연강비단점계박FPSO，재선성삼유세류이론적기출상，기우다체동역학방법건립FPSO-계박퇴-연강비적우합모형，재시역내계산연강비단점계박계통（SYMS）적동력향응특성；병진행연강비단점계박계통삼수민감성분석，연구연강비계박계통적계박점고도、계박강가고도、연강비장도、계박퇴장도、압재창중량등설계삼수적변화대계통동력향응성능적영향。결과표명：단점재하화계박퇴축향재하수착계박점고도、계박강가고도화압재중량적증가선감소후증대，이수착연강비장도、계박퇴장도적증가칙시선증대후감소；차단점재하대연강비장도화압재중량저2개삼수적변화최위민감，이계박퇴축향재하칙대계박강가고도、연강비장도저2개삼수적변화최위민감。
With the aging of FPSO and mooring systems, accidents could occur and pose certain threats on the safety of production in the oil field. Based on the multi-body dynamics theory, a multi-body coupling model, including the soft yoke system and FPSO, is established in this paper. The dynamic response of the Soft Yoke Mooring System (SYMS) is calculated in the time domain based on the linear 3-D potential theo-ry. By selecting different design parameters, such as the height of single point mooring and mooring frames, the length of pendant and soft yoke, and the ballast weight, the sensitivity of force to design parameters of the soft yoke mooring system is analyzed. Results show that the loads on the single point and the pendent decrease first and increase afterward along with the increase of height of single point, height of mooring frame and the ballast weight;while these loads increase first and decrease afterward versus the increase of length of pendant and length of soft yoke. In brief, the loads on the single point are most sensitive to the change of length of soft yoke and ballast weight while the loads on the pendent are most sensitive to height of single point and length of soft yoke.