Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/320052
Type: Artigo de periódico
Title: Large Deflections And Vibrations Of A Tip Pulled Beam With Variable Transversal Section
Author: Kurka
P; Izuka
J; Gonzalez
P; Teixeira
LH
Abstract: The use of long flexible probes in outdoors exploration vehicles, as opposed to short and rigid arms, is a convenient way to grant easier access to regions of scientific interest such as terrain slopes and cliff sides. Longer and taller arms can also provide information from a wider exploration horizon. The drawback of employing long and flexible exploration probes is the fact that its vibration is not easily controlled in real time operation by means of a simple analytic linear dynamic model. The numerical model required to describe the dynamics of a very long and flexible structure is often very large and of slow computational convergence. The present work proposes a simplified numerical model of a long flexible beam with variable cross section, which is statically deflected by a pulling cable. The paper compares the proposed simplified model with experimental data regarding the static and dynamic characteristics of a beam with variable cross section. The simulations show the effectiveness of the simplified dynamic model employed in an active control loop to suppress tip vibrations of the beam. (C) 2016 Elsevier Ltd. All rights reserved.
Subject: Flexible Beams With Variable Cross Sections
Finite Element Method
Vibration Of Guyed Beams
Editor: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation: Mechanical Systems And Signal Processing. ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, n. 79, p. 271 - 288.
Rights: fechado
Identifier DOI: 10.1016/j.ymssp.2016.02.038
Address: http://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0888327016000893
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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