Semiactive variable-friction damper control with simple algorithm

Author

Nishitani, Akira ; Nitta, Yoshihiro ; Itoh, Atsushi ; Ikeda, Yoshiki

Author_Institution

Dept. of Archit., Waseda Univ., Tokyo, Japan

Volume

1

Issue

6

fYear

2000

fDate

36770

Firstpage

503

Abstract

Discusses a methodology of a semiactive control strategy using a variable-friction damper. In this variable-friction damper only the slip-force level is controlled in response to the magnitude of ground motion in such a way that the damper should exhibit a hysteresis to dissipate the energy in any seismic event. The employed control algorithm is rather simple, yet quite effective. The effectiveness of such a variable-friction damper is demonstrated through the computer simulation applying the damper system to a twenty-story building. Then, the control effectiveness is estimated in terms of the equivalent damping factor by utilizing system identification technique

Keywords

damping; digital simulation; force control; hysteresis; identification; structural engineering; equivalent damping factor; ground motion; seismic event; semiactive variable-friction damper control; simple algorithm; slip-force level; system identification technique; twenty-story building; Buildings; Control systems; Damping; Earthquakes; Electronic mail; History; Hysteresis; Shock absorbers; Structural engineering; System identification;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2000. Proceedings of the 2000

Conference_Location

Chicago, IL

ISSN

0743-1619

Print_ISBN

0-7803-5519-9

Type

conf

DOI

10.1109/ACC.2000.878951

Filename

878951