布置方式对MR阻尼器在网壳结构风振抑制中的影响及规律

Study of Impact of Distribution onthe 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抗风减振装置,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,研究了阻尼器的布置方式对空间网壳结构的抗风减振效果的影响。研究表明,阻尼器的布置方式对加入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 influence on structural wind-induced vibration reduction caused by distribution are studied. The results show that, for the numerical examples, the distribution of damper has different effect on the wind-induced vibration reduction of SRSS.