Modeling and control of magnetorheological dampers for seismic response reduction

被引:1085
作者
Dyke, SJ
Spencer, BF
Sain, MK
Carlson, JD
机构
[1] WASHINGTON UNIV,DEPT CIVIL ENGN,ST LOUIS,MO 63130
[2] UNIV NOTRE DAME,DEPT CIVIL ENGN & GEOL SCI,NOTRE DAME,IN 46556
[3] UNIV NOTRE DAME,DEPT ELECT ENGN,NOTRE DAME,IN 46556
[4] LORD CORP,MECH PROD DIV,CARY,NC 27511
关键词
D O I
10.1088/0964-1726/5/5/006
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Control of civil engineering structures for earthquake hazard mitigation represents a relatively new area of research that is growing rapidly. Control systems for these structures have unique requirements and constraints. For example, during a severe seismic event, the external power to a structure may be severed, rendering control schemes relying on large external power supplies ineffective. Magnetorheological (MR) dampers are a new class of devices that mesh well with the requirements and constraints of seismic applications, including having very low power requirements. This paper proposes a clipped-optimal control strategy based on acceleration feedback for controlling MR dampers to reduce structural responses due to seismic loads. A numerical example, employing a newly developed model that accurately portrays the salient characteristics of the MR dampers, is presented to illustrate the effectiveness of the approach.
引用
收藏
页码:565 / 575
页数:11
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