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http://dx.doi.org/10.12989/sss.2018.22.1.095

Velocity feedback for controlling vertical vibrations of pedestrian-bridge crossing. Practical guidelines  

Wang, Xidong (E.T.S. Ingenieros de Caminos, Canales y Puertos, Universidad Politecnica de Madrid)
Pereira, Emiliano (Department of Signal Processing and Communications, Universidad de Alcala)
Diaz, Ivan M. (E.T.S. Ingenieros de Caminos, Canales y Puertos, Universidad Politecnica de Madrid)
Garcia-Palacios, Jaime H. (E.T.S. Ingenieros de Caminos, Canales y Puertos, Universidad Politecnica de Madrid)
Publication Information
Smart Structures and Systems / v.22, no.1, 2018 , pp. 95-103 More about this Journal
Abstract
Active vibration control via inertial mass actuators has been shown as an effective tool to significantly reduce human-induced vertical vibrations, allowing structures to satisfy vibration serviceability limits. However, a lot of practical obstacles have to be solved before experimental implementations. This has motivated simple control techniques, such as direct velocity feedback control (DVFC), which is implemented in practice by integrating the signal of an accelerometer with a band-pass filter working as a lossy integrator. This work provides practical guidelines for the tuning of DVFC considering the damping performance, inertial mass actuator limitations, such as stroke and force saturation, as well as the stability margins of the closed-loop system. Experimental results on a full scale steel-concrete composite structure (behaves similar to a footbridge) with adjustable span are reported to illustrate the main conclusions of this work.
Keywords
active control; human-induced vibrations; band-pass filter; direct velocity feedback control; inertial mass actuator;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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