【摘要】 以大庆电视塔为例,通过Matlab/Simulink软件平台对电视塔进行了抗风控制研究,利用小波分析模型模拟出21条脉动风速时程,基于LQR算法,采用磁流变阻尼器作为半主动控制装置,分析了在风荷载作用下结构的半主动控制效果。结果表明:利用磁流变阻尼器进行振动控制可以有效减小结构的振动反应;Simulink仿真技术具有操作直观、高度可视化等特点,用于抗风控制研究将有很好的发展前景。更多还原

【Abstract】 An experiment was conducted to study the wind-resistant control based on Matlab/Simulink software platform using Daqing TV tower as testing materal. Twenty-one pieces of time-history of turbulent wind were simulated by the model of wavelet analysis. The effect of the semi active control based on LQR algorithm was analysed under wind load using magneto-rheological damper as semi active control device. Results show that the application of magneto-rheological damper to vibration control system can effectively reduce the responses of Daqing TV tower. Simulink simulation technique with the advantages of friendly interface and highly visual characteristics has a very good development prospect in wind-resistant control.更多还原