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On the design of hybrid active-passive piezoelectric vibration damping

Jonas Svensson (Institutionen för bygg- och miljöteknik, Teknisk akustik, Vibroakustik) ; Emiliano Rustinghi ; Brian Mace
Proceedings of Internoise, 13-16 June, 2010 Lisbon (2010)
[Konferensbidrag, refereegranskat]

Recently hybrid piezoelectric damping, combining a passive shunt network with a driving voltage, has been extensively investigated. Combining active and passive damping in this manner has proven advantageous for reasons concerning both control performance and control effort. This study presents a theoretical investigation of a plate structure with a surface bonded piezoelectric element. The piezoelectric element is shunted with an inductive-resistive network, which is connected in series to an active voltage source forming a hybrid active-passive vibration control system. The purpose of this study is to investigate the design of such hybrid systems. A parameter study is conducted by varying the resistance and inductance of the shunt. The damping performance, control effort and fail-safe damping of the hybrid system is evaluated. Results that the optimal shunt network of the hybrid system strongly depends on the desired effect.

Nyckelord: piezoelectric elements, hybrid active-passive vibration control, inductive-resistive shunt



Denna post skapades 2010-06-23.
CPL Pubid: 123281

 

Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Teknisk akustik, Vibroakustik

Ämnesområden

Akustik
Övrig teknisk mekanik

Chalmers infrastruktur