1. Experimental investigation of spillover effect in system of active vibration control
- Author
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Nemanja D. Zorić, Slobodan Stupar, Nebojša S. Lukić, Miroslav Jovanović, Li Wei, Aleksandar Simonović, and Ana S. Petrović
- Subjects
0209 industrial biotechnology ,Engineering ,Active structure ,PID controller ,02 engineering and technology ,pid controller ,020901 industrial engineering & automation ,0203 mechanical engineering ,Control theory ,Active vibration control ,strain gages sensor ,active vibration control ,business.industry ,Mechanical Engineering ,Amplifier ,piezoelectric actuators ,High voltage ,Piezoelectricity ,020303 mechanical engineering & transports ,Mechanics of Materials ,lcsh:TA1-2040 ,spillover effect ,Actuator ,business ,lcsh:Engineering (General). Civil engineering (General) ,lcsh:Mechanics of engineering. Applied mechanics ,lcsh:TA349-359 - Abstract
Piezoelectric actuators are widely used in structural systems for active vibration control with the aim to enhance the performance of systems. The developed system of active vibration control consists of active structure, controller and high voltage amplifier. In this paper, the composite beam is host structure for sensor platform (strain gages) and actuator platform (dual layer PZT piezoelectric actuator). In order to improve the dynamic characteristics of active system, the coefficients of PID controller are changed. The effectiveness of active vibration control system at mode of interest can be improved with change of PID coefficients, but the stability of system can be reduced. The instability of the active structure is often perturbed by spillover effect. In this paper the importance of considering spillover effects in closed loop of piezoelectric active structures is demonstrated and shown the importance of change the PID coefficients in stability of active vibration control system. Experimental results which correspond to the developed active vibration control system are presented and affirmed stability on proposed active structure.
- Published
- 2014