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M. Pietrzakowski, "Dynamic Response of an Actively Damped Cantilever Beam subject to Stochastic Excitations", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 40, 2013. doi:10.4203/ccp.102.40

Keywords: beam, piezoelectric control, random vibration, correlation analysis.

Summary

An active cantilever Bernoulli-Euler beam subjected to random loading is considered in this paper. For control purposes piezoelectric sensor/actuator patches, which operate in a closed loop with velocity feedback are applied. Two types of excitations are taken into account: a random excitation a transverse force and a random transverse motion of the cantilever beam base. The input processes are represented by white noise with a limited bandwidth or a narrow band stationary Gaussian process characterized by second-order statistics, e.g. power spectral density or correlation function. Following the spectral/correlation analysis the statistical properties of the stochastic field of the beam deflection are achieved. The calculation results are presented graphically in terms of a power spectral density, correlation function and variance of the beam tip displacement. The influence of the control gain factor on the stochastic characteristics of the beam systems considered is identified and discussed.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 40 Dynamic Response of an Actively Damped Cantilever Beam subject to Stochastic Excitations M. Pietrzakowski Institute of Machine Design Fundamentals Warsaw University of Technology, Poland doi:10.4203/ccp.102.40 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Pietrzakowski, "Dynamic Response of an Actively Damped Cantilever Beam subject to Stochastic Excitations", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 40, 2013. doi:10.4203/ccp.102.40 Keywords: beam, piezoelectric control, random vibration, correlation analysis. Summary An active cantilever Bernoulli-Euler beam subjected to random loading is considered in this paper. For control purposes piezoelectric sensor/actuator patches, which operate in a closed loop with velocity feedback are applied. Two types of excitations are taken into account: a random excitation a transverse force and a random transverse motion of the cantilever beam base. The input processes are represented by white noise with a limited bandwidth or a narrow band stationary Gaussian process characterized by second-order statistics, e.g. power spectral density or correlation function. Following the spectral/correlation analysis the statistical properties of the stochastic field of the beam deflection are achieved. The calculation results are presented graphically in terms of a power spectral density, correlation function and variance of the beam tip displacement. The influence of the control gain factor on the stochastic characteristics of the beam systems considered is identified and discussed. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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