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Verification of the Relation Between the Directions of Control Force and Responses in Active Seismic Isolation Device

[+] Author Affiliations
Keigo Nakamura, Nanako Miura, Akira Sone

Kyoto Institute of Technology, Kyoto, Japan

Paper No. PVP2018-84446, pp. V008T08A034; 7 pages
  • ASME 2018 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Prague, Czech Republic, July 15–20, 2018
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5171-5
  • Copyright © 2018 by ASME


In this research, the focus is on the energy problem in active vibration control of a seismic isolation device using self-powered active control that regenerates electric power from kinetic energy of vibration system and uses it as control power. In recent years, it is proposed to install semi-active control or active control in an isolated structure to deal with seismic waves of various periods. However, since energy is required for control, there is a problem that the desired response reduction performance cannot be achieved when energy supply is interrupted at the time of a power outage. In our previous device, power is always given to the motor to control, thus power consumption is high. Therefore, the purpose of this research is to propose input method of control force that can reduce control power while keeping base isolation performance by classifying the role of the control force for each control phase and considering various combinations of input control force.

Copyright © 2018 by ASME



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