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The European Physical Journal Special Topics

, Volume 228, Issue 7, pp 1625–1633 | Cite as

Fragility analysis using vibration energy harvesters

  • George Vathakkattil Joseph
  • Guangbo Hao
  • Vikram PakrashiEmail author
Regular Article
Part of the following topical collections:
  1. Energy Harvesting and Applications

Abstract

Fragility curves are widely used as indicators of vulnerability of infrastructure to structural/performance demands posed on it by the environment. Fragility of a structure may change due to variety of factors during its lifetime. This renders the applicability of fragility for risk assessment to be reliant on periodically updated estimation. Derivation of fragility requires an estimate of the capacity of the structure and the demand due to external factors. Vibration data can be used as a medium to estimate both capacity and demand on the system. Energy harvesters being self-sufficient vibration sensors are proposed as devices capable of estimating fragility curves in lieu of other inertial sensors. The concept is illustrated here using simplified models. The reduction in system complexity due to the self-powered nature of the energy harvester along with the proposed ability to compute probability of failure make energy harvesters attractive options for monitoring civil infrastructure and thereby minimizes risk at various stages in its lifetime.

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Copyright information

© EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Dynamical Systems and Risk Laboratory, School of Mechanical and Materials Engineering, University College DublinDublinIreland
  2. 2.Marine and Renewable Energy Ireland (MaREI) Centre, University College DublinDublinIreland
  3. 3.School of Engineering, University College CorkCorkIreland
  4. 4.Marine and Renewable Energy Ireland (MaREI) Centre, Environmental Research Institute, University College CorkCorkIreland
  5. 5.School of Mechanical and Materials Engineering, University College DublinDublinIreland

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