%0 Journal Article
%T Positive Position Feedback Control of a Galloping Structure
%A Mohammad Yaghoub Abdollahzadeh Jamalabadi
%J -
%D 2019
%R https://doi.org/10.3390/acoustics1010005
%X Abstract In this study, the suppression of wind-induced oscillations of a D-shaped prism mounted on a cantilever beam by means of a positive position feedback (PPF) controller is investigated. The assumed mode method is applied to determine the stiffness, mass and non-linear force matrixes of a second order ordinary differential equation system. The positive position feedback control by use of a sensor-actuator piezoelectric is implemented on the galloping system to suppress the mechanical oscillations. The results show that the PPF controller is a powerful method to decrease the galloping amplitude of the D-shaped prism. The numerical results are in a good agreement with experimental results. View Full-Tex
%K fluid-structure interaction
%K galloping effect
%K vibration control
%K positive position feedback
%U https://www.mdpi.com/2624-599X/1/1/5