At the structural controller level, a further CC1110 processor is deployed to implement a proportional integral derivative (PID) algorithm which controls the position of an Active Mass Damper (AMD) located at the top of a reduced scale, three-story steel frame. The mass is attached to a cart which is driven by a DC motor through a gear. The displacement measurement is given by a potentiometer attached to the moving cart. Laboratory tests are carried out by using a small uniaxial shaking table to provide an external excitation at the base of the structure. When a sinusoidal motion of frequency close to the structural resonance is assigned, a comparison of the readings from the accelerometers located on each floor of the structure as the AMD was switched off and on enables to validate the performance of the overall structural control system.
WIRELESS UPGRADE OF ACTIVE CONTROL SYSTEMS
CASCIATI, FABIO;CASCIATI, SARA;CHEN, ZHICONG;FARAVELLI, LUCIA
2011-01-01
Abstract
At the structural controller level, a further CC1110 processor is deployed to implement a proportional integral derivative (PID) algorithm which controls the position of an Active Mass Damper (AMD) located at the top of a reduced scale, three-story steel frame. The mass is attached to a cart which is driven by a DC motor through a gear. The displacement measurement is given by a potentiometer attached to the moving cart. Laboratory tests are carried out by using a small uniaxial shaking table to provide an external excitation at the base of the structure. When a sinusoidal motion of frequency close to the structural resonance is assigned, a comparison of the readings from the accelerometers located on each floor of the structure as the AMD was switched off and on enables to validate the performance of the overall structural control system.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
