摘要
针对某项目高耸空塔在较低风力作用下塔顶挠度过大的问题,对塔设备横风向共振的机理进行了分析,并从减小塔的自振周期、设置扰流装置、增加塔的阻尼等方面着手,提出了防振、减振的具体措施。同时结合对某项目塔设备在各工况下的共振分析,验证了直立空塔应尽早安装内件及附件的必要性。
Regarding the excessive deflection at the top of the high-rising empty tower at low wind action in a certain project,this paper analyzes the mechanism of cross-wind resonance of the tower and proposes concrete measures for shock proof and absorbing by means of reducing the tower＇s natural period of vibration,setting turbulence device and increasing damping of the tower.This paper also verifies the necessity of early installation of internals and auxiliaries for vertical towers based on the analysis of resonance in all cases of the tower in a certain project.
出处
《化肥设计》
CAS
2018年第1期8-11,共4页
Chemical Fertilizer Design
关键词
空塔
诱导振动
卡曼涡街
自振周期
阻尼比
empty tower
inductive resonance
Cayman vortex street
natural period of vibration
damping ratio
