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- W2054121567 abstract "New miniaturization and integration capabilities available from emerging microelectromechanical system (MEMS) technology will allow silicon-based artificial skins involving thousands of elementary actuators to be developed in the near future. Smart structures combining large arrays of elementary motion pixels are thus being studied so that fundamental properties could be dynamically adjusted. This paper investigates the acoustical capabilities of a network of distributed transducers connected with suitable controlling strategy. The research aims at designing an integrated active interface for sound attenuation by using suitable changes of acoustical impedance. The control strategy is based on partial differential equations (PDE) and multiscaled physics of electromechanical elements. Specific techniques based on PDE control theory have provided a simple boundary control equation able to annihilate the reflections of acoustic waves. To experimentally implement the method, the control strategy is discretized as a first order time-space operator. The obtained quasicollocated architecture, composed of a large number of sensors and actuators, provides high robustness and stability. The experimental results demonstrate how a well controlled active skin can substantially modify sound reflectivity of the acoustical interface and reduce the propagation of acoustic waves." @default.
- W2054121567 created "2016-06-24" @default.
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- W2054121567 date "2010-06-01" @default.
- W2054121567 modified "2023-10-14" @default.
- W2054121567 title "Experimental Characterization of Acoustic Impedance Control Using 2D Network of Distributed Smart Cells" @default.
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- W2054121567 doi "https://doi.org/10.1109/dmems.2010.12" @default.
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