悬链线立管涡激振动响应及协同学控制  

Steel catenary riser vortex-induced vibration and synergetic control

作　　者：宋传旺[1,2] 孟丹[1] 朱崇钊 

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033 [2]青岛理工大学通信与电子工程学院,山东青岛266033 [3]即墨市建筑工程管理处质量管理站,山东即墨266200

出　　处：《辽宁工程技术大学学报（自然科学版）》2013年第6期788-791,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(51179080);山东省博士后创新专项资金资助项目(201202014)

摘　　要：针对钢悬链线立管结构体系涡激振动的自组织演化过程问题,采用协同学的方法,通过分析质点位移为序参量的结构振动演化主方程的非定态解,阐述了快驰豫参量和控制系统演化的慢驰豫参量之间的相互关联和协同作用,得到了代表立管系统振动时序参量所满足的主方程.进而探讨了结构振动控制的方法,包括改变结构弹性模量和内流流速的被动控制方法,以及控制外部流体流速的主动控制方法,为钢悬链线立管结构涡激振动控制工程实践提供了理论依据.Based on the basic principle of synergetics, and according to the system of the steel catenary risers structure vibration, this paper established the chief equation of structure vibration, listed the complex relationship between the rapid variable and the order parameter, which dominate the evolvement of the system in the course of structure vibration, the feedback, coupling and the nonlinear self-organization evolvement lying in the system. Further, this paper discussed the method of structure vibration controlling. Passive control methods include changing the elastic modulus and internal flow velocity of the structure, and active control method of control the external fluid velocity. This study provided a theoretical basis for vortex-induced vibration control of steel catenarv riser structure.

关 键 词：钢悬链线立管 涡激振动 协同学 振动控制 序参量 内流 外部流体 非定态解 

分 类 号：TV312[水利工程—水工结构工程]