Semiactive variable-friction damper control with simple algorithm

Akira Nishitani; Yoshihiro Nitta; Atsushi Itoh; Yoshiki Ikeda

doi:10.1109/ACC.2000.878951

Semiactive variable-friction damper control with simple algorithm

Akira Nishitani, Yoshihiro Nitta, Atsushi Itoh, Yoshiki Ikeda

Waseda Research Institute for Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

This paper discusses a methodology of 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.

Original language	English
Pages (from-to)	503-507
Number of pages	5
Journal	Proceedings of the American Control Conference
Volume	1
DOIs	https://doi.org/10.1109/ACC.2000.878951
Publication status	Published - 2000 Jan 1

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/ACC.2000.878951

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AU - Itoh, Atsushi

AU - Ikeda, Yoshiki

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Y1 - 2000/1/1

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AB - This paper discusses a methodology of 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.

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Semiactive variable-friction damper control with simple algorithm

Abstract

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