Resumo

DOMINGUEZ-GURRIA, Miguel Alberto et al. Bidirectional dry friction energy dissipater using layers. Dyna rev.fac.nac.minas [online]. 2022, vol.89, n.224, pp.107-112.  Epub 30-Mar-2023. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v89n224.102973.

Many studies have been carried out to determine the performance of the energy dissipators proposed by different authors, mainly analyzing the hysteretic loops of loading and unloading. Likewise, the authors have sought to have simple, easy to manufacture and economical designs. Based on the above, the analysis of a passive bidirectional dry friction energy dissipator system is presented, whose main characteristic is the implementation of layer elements as structure, besides not requiring bolts or springs for the application of the preload. The study is carried out by means of numerical modeling using the finite element software Abaqus. The energy dissipation analysis is presented by means of hysteresis cycles, for different types of preload and number of stacked layer elements. The device, by means of one of the analyzed configurations, presents the capacity to dissipate 52 J of energy, being an innovative and functional design.

Palavras-chave : dry friction; layers; energy dissipation; variable stiffness.

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