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Dynamical Modeling and Parameter Identification of Seismic Isolation Systems by Evolution Strategies

  • Anastasia Athanasiou
  • Matteo De Felice
  • Giuseppe Oliveto
  • Pietro S. Oliveto
Part of the Studies in Computational Intelligence book series (SCI, volume 465)

Abstract

An application of Evolution Strategies (ESs) to the dynamic identification of hybrid seismic isolation systems is presented. It is shown how ESs are highly effective for the optimisation of the test problem defined in previous work for methodology validation. The acceleration records of a number of dynamic tests performed on a seismically isolated building are used as reference data for the parameter identification. The application of CMA-ES to a previously existing model considerably improves previous results but at the same time reveals limitations of the model. To investigate the problem three new mechanical models with higher number of parameters are developed. The application of CMA-ES to the best designed model allows improvements of up to 79% compared to the solutions previously available in literature.

Keywords

Earthquake engineering Structural system identification Evolution strategies CMA-ES Real-world applications 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Anastasia Athanasiou
    • 1
  • Matteo De Felice
    • 2
  • Giuseppe Oliveto
    • 1
  • Pietro S. Oliveto
    • 3
  1. 1.Department of Civil and Environmental EngineeringUniversity of CataniaCataniaItaly
  2. 2.Energy and Environment Modeling Technical UnitENEARomeItaly
  3. 3.School of Computer ScienceThe University of BirminghamBirminghamU.K.

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