A Wind Tunnel Investigation of the Control of Wind-induced Tall Building Vibrations by an Active Tuned Mass Damper

Download or read book A Wind Tunnel Investigation of the Control of Wind-induced Tall Building Vibrations by an Active Tuned Mass Damper written by Robert Joe Facioni and published by . This book was released on 1994 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wind tunnel investigation was conducted to investigate how effective an Active Tuned Mass Damper (ATMD) was in suppressing the wind-induced vibrations of tall buildings. The model ATMD and model building were developed at a 1:100 scale and tested in a wind tunnel simulating natural wind flow over a suburban terrain at a 1:100 scale. The ATMD model was developed so that parameters such as mass, stiffness and damping could be altered. Consequently, the ATMD was set-up and tested with five various parameter configurations. The ATMD was driven by a sub-optimal control algorithm which used displacement feedback. The optimal phase shift of the control algorithm was determined to be at 110 which was used for all the wind tunnel tests. The wind tunnel investigations demonstrated that the ATMD was effective in reducing both the along-wind and cross-wind responses of the building.