A two-step strategy for designing optimal-based active control of human-induced vibrations

Abstract

Civil structures such as floor systems with open-plan layouts or lightweight footbridges can be susceptible to excessive levels of vibrations caused by human activities. Active vibration control (AVC) via inertial-mass actuators has been shown to be a viable technique to mitigate vibrations, allowing structures to satisfy vibration serviceability limits. The application of AVC to complex structures requires the use of several Actuator/Sensor, being necessary the implementation of multiple-input multiple-output (MIMO) strategy. The present work proposes a two-step strategy for designing MIMO optimal-based AVC suitable for structures with a large number of vibration modes and with a large number of test points.