Free Vibration Response of a Frame Structural Model Controlled by a Nonlinear Active Mass Driver System
Joint Authors
Ubertini, Filippo
Venanzi, Ilaria
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Active control devices, such as active mass dampers, are mainly employed for the reduction of wind-induced vibrations in high-rise buildings, with the final aim of satisfying vibration serviceability limit state requirements and of meeting appropriate comfort criteria.
When such active devices, normally operating under wind loads associated with short return periods, are subjected to seismic events, they can experience large amplitude vibrations and exceed stroke limits.
This may lead to a reduced performance of the control system that can even worsen the performance of the whole structure.
In this paper, a nonlinear control strategy based on a modified direct velocity feedback algorithm is proposed for handling stroke limits of an active mass driver (AMD) system.
In particular, a suitable nonlinear braking term proportional to the relative AMD velocity is included in the control law in order to slowdown the device in the proximity of the stroke limits.
Experimental and numerical free vibration tests are carried out on a scaled-down five-story frame structure equipped with an AMD to demonstrate the effectiveness of the proposed control strategy.
American Psychological Association (APA)
Venanzi, Ilaria& Ubertini, Filippo. 2014. Free Vibration Response of a Frame Structural Model Controlled by a Nonlinear Active Mass Driver System. Advances in Civil Engineering،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-495349
Modern Language Association (MLA)
Venanzi, Ilaria& Ubertini, Filippo. Free Vibration Response of a Frame Structural Model Controlled by a Nonlinear Active Mass Driver System. Advances in Civil Engineering No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-495349
American Medical Association (AMA)
Venanzi, Ilaria& Ubertini, Filippo. Free Vibration Response of a Frame Structural Model Controlled by a Nonlinear Active Mass Driver System. Advances in Civil Engineering. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-495349
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-495349