Velocity Adjustable TMD and Numerical Simulation of Seismic Performance

This paper presents a new type of velocity adjustable tuned mass damper (TMD) consisting of impulse generators and clutches. The force impulse is generated by a joining operation of electromagnets and springs and MR dampers are used as clutches. Rules for velocity adjustment are established according to the working mechanism of TMD. The analysis program is developed on a VB platform. Seismic response of single-degree-of-freedom structures with both passive TMD and velocity adjustable TMD are analyzed. Results show that: 1) control effectiveness of passive TMDs is usually unstable; 2) the control effectiveness of the proposed semi-active TMDs is much better than passive TMDs under typical seismic ground motions; and 3) unlike the passive TMD system, the proposed velocity adjustable TMDs exhibit good control effectiveness even when the primary structure performance becomes inelastic during severe earthquakes.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16713664
• Authors:
  • Li, Qin
  • Xiyuan, Zhou
  • Weiming, Yan
• Publication Date: 2007-6

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 147-158
• Serial:
  • Earthquake Engineering and Engineering Vibration
  • Volume: 6
  • Issue Number: 2
  • Publisher: Springer
  • ISSN: 1671-3664
  • EISSN: 1993-503X
  • Serial URL: http://link.springer.com/journal/11803

Subject/Index Terms

• TRT Terms: Damping (Physics); Degrees of freedom; Earthquake engineering; Inelastic stress; Seismicity; Simulation; Structural mechanics; Vibration control
• Uncontrolled Terms: Inelasticity; Tuned mass dampers
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01082426
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 18 2007 11:28AM