MR阻尼器在空间网壳结构风振抑制中的结构几何参数影响

Impact of geometric parameters on the wind-induced vibration reduction of spatial reticulated shell structures with MR dampers introduced

磁流变液(MR)阻尼器是一种新型智能材料减振装置,将MR阻尼器以适当方式和网壳结构结合,形成具有智能材料杆件的空间网壳结构,以达到抑制结构风振的目的,研究了结构几何参数对空间网壳结构的抗风减振效果的影响.研究表明,网壳结构的几何参数的改变对加入MR阻尼器后的网壳结构在风荷载作用下的减振效果具有一定程度的影响.

MR （Magneto-rheological） damper is a smart material control device for structural vibration. This paper combines the spatial reticulated shell structures（SRSS） with MR dampers in order to reduce structural wind-induced vibration and the influe- nce on structural wind-induced vibration reduction which caused by geometric parameters are studied. The results show that, for the numerical examples, different geometric parameters have different effect on the wind-induced vibration reduction of SRSS