COMPARE THE EFFICIENCY OF CONTROLLED STIFFNESS DAMPER WITH VARIABLE FRICTION DAMPER FOR SEISMIC PROTECTION OF BUILDING | Zendy

Phuc Quang Bao Nguyen | Zendy; Hoa Nhan Pham | Zendy; Thang Q. Chu | Zendy

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COMPARE THE EFFICIENCY OF CONTROLLED STIFFNESS DAMPER WITH VARIABLE FRICTION DAMPER FOR SEISMIC PROTECTION OF BUILDING

Author(s) -

Phuc Quang Bao Nguyen,

Hoa Nhan Pham,

Thang Q. Chu

Publication year - 2009

Publication title -

science and technology development journal

Language(s) - English

Resource type - Journals

ISSN - 1859-0128

DOI - 10.32508/stdj.v12i8.2277

Subject(s) - damper , clamping , modal , stiffness , variable (mathematics) , structural engineering , vibration control , engineering , tuned mass damper , vibration , control theory (sociology) , computer science , control (management) , mechanical engineering , materials science , physics , mathematics , acoustics , mathematical analysis , artificial intelligence , polymer chemistry

The implementation of variable friction dampers (VFD) for vibration mitigation of seismic structures generally requires an efficient semi-active control law. In this paper, a semi-active modal control method is proposed to determine the controllable clamping force of a variable friction damper. A comparative study was performed on a multiple DOF structure controlled by passive friction dampers, variable friction dampers in subsection numerical examples. Finally, this paper also provides preliminary conclusions about the advantages and disadvantages for friction dissipators.

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