外流作用下管道流固耦合非线性动力学研究进展  

Research Progress on Fluid-Structure Interaction Vibrations of Pipes Subjected to External Flows

作　　者：何毅翔 邢浩然 代胡亮 王琳 He Yixiang;Xing Haoran;Dai Huliang;Wang Lin(School of Aerospace Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Hubei Key Laboratory for Engineering Structural Analysis and Safety Assessment,Wuhan 430074,China)

机构地区：[1]华中科技大学航空航天学院,武汉430074 [2]工程结构分析与安全评定湖北省重点实验室,武汉430074

出　　处：《动力学与控制学报》2023年第6期3-17,共15页Journal of Dynamics and Control

基　　金：机械系统与振动国家重点实验室开放基金项目(MSV202205)资助。

摘　　要：管道广泛应用于海洋、核电以及航空航天等重大工程中,是采油平台、蒸汽发生器等重要工程装备的关键结构之一.当有外部流体经过时,管道会发生流固耦合振动行为,这是导致重大装备振动破坏和失效的重要原因之一,已成为重大工程设计必须解决的关键问题.本文针对外流作用下柔性管道流固耦合非线性动力学机理这一科学问题,梳理了国内外学者的重要研究成果,重点分析了柔性管道分别在横向外流和轴向外流作用下的流固耦合非线性振动行为.从实验研究、仿真分析和理论建模等方面进行了深入的探讨,揭示了外部流体对管道动力学行为的影响机制.最后,对国内外研究现状进行了简要的总结,并给出了这一研究仍存在的难点与挑战.Pipes are widely employed in marine,nuclear power,aerospace and other important engineering applications.The pipe is one of the most key structures for engineering equipment such as the oil production platform and the steam generator.When the external fluid flows through the pipe,fluid-structure interaction vibration behavior of the pipe occurs,leading to vibration damage and fatigue failure of the engineering equipment.It has become a key problem that must be solved in engineering design.As to the scientific issues on nonlinear dynamical mechanism for fluid-structure interaction vibrations of flexible pipes subjected to external flows,this paper reviews the important research progress over the world scholars,focusing on discussing the nonlinear fluid-structure interaction vibrations of flexible pipes subjected to external cross flows and axial flows,respectively.The influence mechanism of external flows on dynamic behaviors of the pipe is revealed from aspects of the experimental research,computational fluid dynamics simulation and theoretical modeling.Finally,the current research status is briefly summarized and the research difficulties and challenges still exist in this field are proposed.

关 键 词：管道 流固耦合振动 屈曲 颤振 非线性动力学 

分 类 号：O322[理学—一般力学与力学基础]