等截面高耸烟囱涡激共振发生耦合过程研究  

Study on the Coupling Process of Vortex-induced Resonance in Constant Section Tall Chimneys

作　　者：袁欣欣 Yuan Xinxin(Shandong Huayu University of Technology,Dezhou 253000,China)

机构地区：[1]山东华宇工学院,山东德州253000

出　　处：《黑龙江科学》2023年第24期51-53,共3页Heilongjiang Science

摘　　要：当烟筒受到风荷载时,振动会被激发,从而对周围气体产生影响或干扰。烟筒内部的气体-物理强度发生变化,导致气体、固体之间出现气固耦合,发生共振现象。其中,圆柱涡激振动是一种常见的典型气动耦合现象。结合实际工程案例,对涡激共振耦合过程中的气动力系数、振幅与风压之间的关系进行分析,探讨这些因素与涡激共振的关系。When the chimney is subjected to wind load,the vibration will be excited,which will affect or interfere with the surrounding gas.The changes of gas-physical strength inside the chimney causes the gas-solid coupling between the gas and the solid,and the resonance phenomenon.Among them,cylindrical vortex-induced vibration is a typical aerodynamic coupling phenomenon.Through combining with practical project cases,the study analyzes the relationship between aerodynamic coefficient,amplitude and wind pressure in the process of vortex-induced resonance coupling,and discusses the relationship between these factors and vortex-induced resonance.

关 键 词：涡激共振 耦合 气动力系数 振幅 风压 

分 类 号：TU352.2[建筑科学—结构工程]