Experimental implementation of multi-actuator vibration control on an indoor walkway

Abstract

Active vibration control (AVC) using inertial mass actuators has been shown to have great potential to mitigate vibrationsand to allow the construction of increasingly slender structures leading to significant material savings. Until now, experimentalapplications have mainly involved the use of SISO (single-input single-output) rather than MIMO (multiple-input multiple-output) strategies. Recently, the authors have proposed a MIMO vibrationcontrol methodology based on the velocity-output-feedback concept that considers the dynamics of the inertial actuatorsand other important issues in human-induced vibrations.This paper details the experimental implementation carried out on an indoorin-service walkway. The experimental programmeundertaken involved frequency walking tests, walking tests, heel-drop tests and continuous whole-day in-service monitoring.These measurements enabled the assessment of the vibration control performance, which has been shown to be excellent