压力容器Issue(1)：25-31,7.DOI:10.3969/j.issn.1001-4837.2016.01.005
高耸塔器的风振模拟及其采用侧向支撑的减振分析
Wind Induced Vibration Simulation of High-rise Tower and Its Vibration Reduction Analysis under Lateral Supporting
摘要
Abstract
Taking a high-rise tower in refining engineering as the object,the along-wind responses for the tower body were analyzed.Selecting davenport wind speed spectrum,fluctuating wind load samples were simulated by the MATLAB program which based on harmonic superposition method.The results show that the simulated wind load power spectrum is in good agreement with the target spectrum,and the wind load data conform to normal distribution with zero mean,which indicate that the simulation of fluctuating wind load is of good quality.Subjected to fluctuating wind load of 1200 s,the wind vibration effect of tower is apparent,and the maximum top displacement can be up to 0.512 m.While taking springs as lateral sup-port of tower,the tower body still shakes violently.While taking dampers as lateral support of tower,the maximum top displacement of tower decreases rapidly with increase in damping coefficient.And the maximumtop displacement of tower is reduced to about 0.1 m.The wind-resistance performance can be improved effectively by setting damper shock absorbers on the side of the tower.关键词
脉动风载荷/高耸塔/风振响应/抗风性能Key words
fluctuating wind load/high-rise tower/wind induced vibration/wind-resistance performance分类
机械制造引用本文复制引用
彭恒,张荣钢,杜显赫,张贵辰,易宝生,游辉..高耸塔器的风振模拟及其采用侧向支撑的减振分析[J].压力容器,2016,(1):25-31,7.基金项目
中国石油工程建设科学研究与技术开发项目 （）
