基于磁流变阻尼器的隔震高架桥Skyhook控制

汪志昊;;陈政清

振动与冲击 ›› 2010, Vol. 29 ›› Issue (12) : 196-199.

PDF(1518 KB)
PDF(1518 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (12) : 196-199.
论文

基于磁流变阻尼器的隔震高架桥Skyhook控制

  • 汪志昊1, 2;陈政清1
作者信息 +

Skyhook control of isolated elevated highway bridge based on magnetorheological (MR) damper

  • WANG Zhi-hao1, 2; CHEN Zheng-qing1
    陈政清
Author information +
文章历史 +

摘要


为进一步提高隔震高架桥的抗震性能,避免在强震下隔震支座位移过大,可以将附加减震措施与隔震支座配合使用,组成混合隔震系统。基于位移控制目标,研究了简化的两自由度高架桥线性模型分别在最优被动控制、LQR主动控制、LQR-Clipped 磁流变 (MR) 阻尼器半主动控制及MR阻尼器Skyhook控制下的地震响应。研究结果表明,基于Skyhook控制的MR 阻尼器控制效果可以达到LQR-Clipped 控制的效果,相对最优被动控制也体现出一定的优越性。并且Skyhook控制系统简单,具有较强的实用价值。


Abstract

To further enhance the seismic performance of isolated elevated highway bridge and avoid the excessive displacement of bearing, supplemental vibration control device can be added to work with isolation bearing and form the hybrid control system. Based on the objective of the displacement control, the seismic responses of the simplified linear two-degree-of-freedom bridge model under three different control strategies, namely, optimal passive control, LQR active control, LQR-Clipped MR semi-active control as well as Skyhook MR control, are investigated. The numerical simulation results show that Skyhook control strategy can get close control performance with that of LQR-Clipped control, and Skyhook control also works considerably better than optimal passive control. Moreover, Skyhook control system is simpler and has better practical utility.

关键词

高架桥 / 隔震 / 磁流变阻尼器 / 半主动控制 / Skyhook控制

Key words

elevated highway bridge / seismic isolation / MR damper / Semi-active control / skyhook control

引用本文

导出引用
汪志昊;;陈政清. 基于磁流变阻尼器的隔震高架桥Skyhook控制[J]. 振动与冲击, 2010, 29(12): 196-199
WANG Zhi-hao;;CHEN Zheng-qing陈政清. Skyhook control of isolated elevated highway bridge based on magnetorheological (MR) damper[J]. Journal of Vibration and Shock, 2010, 29(12): 196-199

PDF(1518 KB)

Accesses

Citation

Detail

段落导航
相关文章

/