Smart sensors and active adaptive control exploitation for vibration damping of a cantilever beam

Lucio Rossi; A. Irace; G. Breglio

doi:10.1117/12.738846

2 July 2007 Smart sensors and active adaptive control exploitation for vibration damping of a cantilever beam

Lucio Rossi, A. Irace, G. Breglio

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 661943 (2007) https://doi.org/10.1117/12.738846
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

In this work we present the first experimental results of a new multidisciplinary activity concerning active structural control. Specifically, exploiting Fiber Bragg Grating (FBG) sensors and Piezoelectric actuators, an adaptive control approach was adopted to damp the vibrations of a cantilever beam. The strain sensor used for the structural vibration detection is a Bragg Grating written on a single-mode optical fiber for telecom applications. The reading technique used to detect the variations in the &lgr;_B of the grating due to the local strain variations, exploits a narrow band laser tuned to the mean wavelength of the grating reflectance spectrum roll-off, as it will be better explained in the following. The results obtained so far demonstrate how the combined application of novel strain sensors and a clever control approach can provide a benefit in terms of bandwidth, damping speed and reduced design effort.

Citation Download Citation

Lucio Rossi, A. Irace, and G. Breglio "Smart sensors and active adaptive control exploitation for vibration damping of a cantilever beam", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 661943 (2 July 2007); https://doi.org/10.1117/12.738846

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