摘要
为了解决传统船型和圆柱筒状浮式生产储油系统(FPSO)的性能局限问题,提出一种具有沙漏式浮体的新概念FPSO.以沙漏式浮体的垂荡运动性能为目标,基于频域势流理论计算浮体的水动力参数,考虑浮体垂荡运动黏性阻尼和非线性静水回复刚度,建立浮体的垂荡运动方程.采用龙格-库塔数值迭代算法求解新型FPSO的垂荡运动响应,并且据此分析黏性阻尼和非线性刚度对沙漏型浮体垂荡运动性能的影响,以期为新型沙漏式FPSO的主浮体外形设计提供参考依据和准则.
In order to solve the performance limitations of traditional ship-type and cylindrical floating production storage and offloading（FPSO）,a new concept of sandglass-type FPSO was presented.For the heave motion performance of sandglass-type floating body,the relative hydrodynamic parameters were calculated by potential flow theory in frequency domain.Furthermore,viscous damping and nonlinear restoring stiffness were introduced and the heave motion equation of floating body was completely established.Then Runge-Kutta algorithm was used to solve the heave motion response of new FPSO.Finally the effect of viscous damping and nonlinear stiffness on heave motion was analyzed to guide the shape design of new sandglass-type floating body.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第7期129-132,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(51221961)
大连理工大学引进人才科研启动基金资助项目
关键词
沙漏式浮体
垂荡运动性能
黏性阻尼
非线性静水回复刚度
龙格-库塔算法
sandglass-type floating body
heave motion performance
viscous damping
nonlinear re-storing stiffness
Runge-Kutta algorithm
