Suppression Vibration Adaptive Inverse Dynamics Control of Flexible Plate with Piezoelectric Layers


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Micro-Vibrations, generally defined as low amplitude vibrations at frequencies up to 1 kHz, are now of critical importance in a number of areas. One such area is onboard spacecraft carrying sensitive payloads where the micro-vibrations are caused by the operation of other equipment. In this paper a rectangular simply supported flexible panel is considered. The equipments are located on this panel as lumped masses and the micro-vibrations are induced by some concentrated forces. The piezoelectric layers are attached on both sides of the panel as sensors and actuators. The governing equations of motion are derived based on Lagrange-Rayleigh-Ritz method. An adaptive control scheme is applied to reduce the panel vibrations. Finally the simulation results show the advantages of the adaptive control algorithm.



Advanced Materials Research (Volumes 403-408)

Edited by:

Li Yuan




M. Azadi et al., "Suppression Vibration Adaptive Inverse Dynamics Control of Flexible Plate with Piezoelectric Layers", Advanced Materials Research, Vols. 403-408, pp. 618-624, 2012

Online since:

November 2011




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[12] Panel Piezoelectric Length = 304. 8 mm = 1. 66e-10 m/V Wide = 203. 2 mm = 1700 Thickness = 1. 52 mm = 0. 19 mm = 71e9 Pa = 63e9 Pa = 0. 33 = 0. 3 = 2800 kg/m3 = 7650 kg/m3 Figure 1. The panel vibration when no voltage is applied to piezoelectric actuators (t=1. 2s) Figure 2. The generalized coordinates when voltage is applied to piezoelectric actuators Figure 3. The panel vibration when voltage is applied to piezoelectric actuators (t=1. 2s).