RT info:eu-repo/semantics/article T1 Application of an instrumental and computational approach for improving the vibration behavior of structural panels using a lightweight multilayer composite A1 Sánchez Lite, Alberto A1 García García, Manuel A1 Sebastián, Miguel Ángel A1 Camacho, Ana María K1 Vibration sensors K1 ODS instrumental test K1 FEM K1 Improvement K1 Composite K1 33 Ciencias Tecnológicas K1 3312 Tecnología de Materiales AB This work presents a hybrid (experimental-computational) application for improving the vibration behavior of structural components using a lightweight multilayer composite. The vibration behavior of a flat steel plate has been improved by the gluing of a lightweight composite formed by a core of polyurethane foam and two paper mats placed on its faces. This composite enables the natural frequencies to be increased and the modal density of the plate to be reduced, moving about the natural frequencies of the plate out of excitation range, thereby improving the vibration behavior of the plate. A specific experimental model for measuring the Operating Deflection Shape (ODS) has been developed, which enables an evaluation of the goodness of the natural frequencies obtained with the computational model simulated by the finite element method (FEM). The model of composite + flat steel plate determined by FEM was used to conduct parametric study, and the most influential factors for 1st, 2nd and 3rd mode were identified using a multifactor analysis of variance (Multifactor-ANOVA). The presented results can be easily particularized for other cases, as it may be used in cycles of continuous improvement as well as in the product development at the material, piece, and complete-system levels. PB MDPI SN 1424-8220 YR 2014 FD 2014 LK https://uvadoc.uva.es/handle/10324/57787 UL https://uvadoc.uva.es/handle/10324/57787 LA eng NO Sensors, 2014, vol. 14, n. 3, p. 4960-4980 NO Producción Científica DS UVaDOC RD 24-nov-2024