Seismic isolation device having charging function by a transducer

Takashi Yamaguchi, Nanako Miura, Masaki Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


In late years, many base isolated structures are planned as the seismic design, because they suppress vibration response significantly against large earthquake. To achieve greater safety, semi-active or active vibration control system is installed in the structures as earthquake countermeasures. Semi-active and active vibration control systems are more effective than passive vibration control system to large earthquake in terms of vibration reduction. However semi-active and active vibration control system cannot operate as required when external power supply is cut off. To solve the problem of energy consumption, we propose a self-powered active seismic isolation floor which achieve active control system using regenerated vibration energy. This device doesn't require external energy to produce control force. The purpose of this study is to propose the seismic isolation device having charging function and to optimize the control system and passive elements such as spring coefficients and damping coefficients using genetic algorithm. As a result, optimized model shows better performance in terms of vibration reduction and electric power regeneration than the previous model. At the end of this paper, the experimental specimen of the proposed isolation device is shown.

Original languageEnglish
Title of host publicationActive and Passive Smart Structures and Integrated Systems 2016
ISBN (Electronic)9781510600409
Publication statusPublished - 2016
EventActive and Passive Smart Structures and Integrated Systems 2016 - Las Vegas, United States
Duration: 2016 Mar 212016 Mar 24


OtherActive and Passive Smart Structures and Integrated Systems 2016
CountryUnited States
CityLas Vegas


  • Genetic algorithm
  • Regeneration energy
  • Seismic isolation floor
  • Self-powered active control

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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