Health monitoring of web plastifying dampers subjected to cyclic loading through vibration tests

Benavent Climent, Amadeo; Gallego Molina, Antolino; Romo Melo, Liliana Minelly y Morillas, L. (2014). Health monitoring of web plastifying dampers subjected to cyclic loading through vibration tests. "Structural Health Monitoring", v. 13 (n. 1); pp. 33-49. ISSN 1475-9217. https://doi.org/10.1177/1475921713499273.

Descripción

Título: Health monitoring of web plastifying dampers subjected to cyclic loading through vibration tests
Autor/es:
  • Benavent Climent, Amadeo
  • Gallego Molina, Antolino
  • Romo Melo, Liliana Minelly
  • Morillas, L.
Tipo de Documento: Artículo
Título de Revista/Publicación: Structural Health Monitoring
Fecha: 2014
Volumen: 13
Materias:
Palabras Clave Informales: Hysteretic dampers; Vibration tests; Health monitoring; Energy-based damage index; Piezoceramic sensor
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Mecánica
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This article investigates experimentally the application of health monitoring techniques to assess the damage on a particular kind of hysteretic (metallic) damper called web plastifying dampers, which are subjected to cyclic loading. In general terms, hysteretic dampers are increasingly used as passive control systems in advanced earthquake-resistant structures. Nonparametric statistical processing of the signals obtained from simple vibration tests of the web plastifying damper is used here to propose an area index damage. This area index damage is compared with an alternative energy-based index of damage proposed in past research that is based on the decomposition of the load?displacement curve experienced by the damper. Index of damage has been proven to accurately predict the level of damage and the proximity to failure of web plastifying damper, but obtaining the load?displacement curve for its direct calculation requires the use of costly instrumentation. For this reason, the aim of this study is to estimate index of damage indirectly from simple vibration tests, calling for much simpler and cheaper instrumentation, through an auxiliary index called area index damage. Web plastifying damper is a particular type of hysteretic damper that uses the out-of-plane plastic deformation of the web of I-section steel segments as a source of energy dissipation. Four I-section steel segments with similar geometry were subjected to the same pattern of cyclic loading, and the damage was evaluated with the index of damage and area index damage indexes at several stages of the loading process. A good correlation was found between area index damage and index of damage. Based on this correlation, simple formulae are proposed to estimate index of damage from the area index damage.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaP07-TEP-02610Sin especificarAmadeo Benavent ClimentDesarrollo e implementación de la tecnología de los disipadores de energía aplicada al control del daño en construcciones sometidas a terremotos, y su evaluación mediante técnicas avanzadas
Gobierno de EspañaP08-TEP-03641Sin especificarAntolino Gallego MolinaDetección de daño en materiales compuestos avanzados de uso aeronáutico mediante técnicas vibro-acústicas y modelos de optimización

Más información

ID de Registro: 35895
Identificador DC: http://oa.upm.es/35895/
Identificador OAI: oai:oa.upm.es:35895
Identificador DOI: 10.1177/1475921713499273
URL Oficial: http://shm.sagepub.com/content/early/2013/09/12/1475921713499273
Depositado por: Memoria Investigacion
Depositado el: 03 Mar 2016 13:52
Ultima Modificación: 07 Mar 2016 09:07
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