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Semi-Active Control of Structural Systems Aiming to Approximate the Performance of the Targeted Active Control Law: Output Emulation Approach

[+] Author Affiliations
Kazuhiko Hiramoto

Niigata University, Niigata, Japan

Taichi Matsuoka

Meiji University, Kawasaki, Japan

Katsuaki Sunakoda

Sanwa Tekki Corporation, Utsunomiya, Japan

Paper No. PVP2013-97451, pp. V008T08A003; 9 pages
doi:10.1115/PVP2013-97451
From:
  • ASME 2013 Pressure Vessels and Piping Conference
  • Volume 8: Seismic Engineering
  • Paris, France, July 14–18, 2013
  • Conference Sponsors: Pressure Vessels and Piping Division, Nondestructive Evaluation Engineering Division
  • ISBN: 978-0-7918-5574-4
  • Copyright © 2013 by ASME

abstract

As a method for semi-active control of structural systems, the active-control-based method that emulates the control force of a targeted active control law by semi-active control devices has been studied. In the active-control-based method, the semi-active control devices are not necessarily able to generate the targeted active control force because of the dissipative nature of those devices. In such a situation, the meaning of the targeted active control law becomes unclear in the sense of the control performance achieved by the resulting semi-active control system. In this study, a new semi-active control strategy that approximates the control output (not the control force) of the targeted active control is proposed. The variable parameter of the semi-active control device is selected at every time instant so that the predicted control output of the semi-active control system becomes close to the corresponding predicted control output of the targeted active control as much as possible. Parameters of the targeted active control law are optimized in the premise of the above “output emulation” strategy so that the control performance of the semi-active control becomes good and the “error” of the achieved control performance between the targeted active control and the semi-active control becomes small.

Copyright © 2013 by ASME

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