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Proceedings Paper

A driven active mass damper by using output of a neural oscillator (effects of position control system changes on vibration mitigation performance)
Author(s): J. Hongu; D. Iba; T. Sasaki; M. Nakamura; I. Moriwaki
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Paper Abstract

In this paper, a design method for a PD controller, which is a part of a new active mass damper system using a neural oscillator for high-rise buildings, is proposed. The new system mimicking the motion of bipedal mammals is a quite simple system, which has the neural oscillator synchronizing with the acceleration response of the structure. The travel distance and direction of the auxiliary mass of the active mass damper is decided by the output of the neural oscillator, and then, the auxiliary mass is transferred to the decided location by using the PD controller. Therefore, the performance of the PD controller must be evaluated by the vibration energy absorbing efficiency by the system. In order to bring the actual path driven by the PD controller in closer alignment with the ideal path, which is assumed to be a sinusoidal wave under resonance, firstly, the path of the auxiliary mass driven by the PD controller is analytically derived, and the inner product between the vector of ideal and analytical path is evaluated. And then, the PD gain is decided by the maximum value of the inner product. Finally, numerical simulations confirm the validity of the proposed design method of the PD controller.

Paper Details

Date Published: 27 March 2015
PDF: 9 pages
Proc. SPIE 9435, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015, 943510 (27 March 2015); doi: 10.1117/12.2084206
Show Author Affiliations
J. Hongu, Kyoto Institute of Technology (Japan)
D. Iba, Kyoto Institute of Technology (Japan)
T. Sasaki, Kyoto Institute of Technology (Japan)
M. Nakamura, Kyoto Institute of Technology (Japan)
I. Moriwaki, Kyoto Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 9435:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015
Jerome P. Lynch, Editor(s)

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