Vibration control of a structure by using of an active dynamic vibration absorber taking account of actuator constraints (Experimental verification for a multi-degree-of-freedom structure)

Naoki Oie, Hidekazu Nishimura, Seiji Shimodaira

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this paper our proposed design method of a gain-scheduled controller is verified for vibration control of a multi-degree-of-freedom structure by using of an active dynamic vibration absorber with actuator constraints. We formulate the linear parameter varying system taking account of both the maximum control input and the maximum stroke of the actuator by using nonlinear functions of hyperbolic tangent. As the feedback signals of the gain scheduled control system we use the relative displacement of the primary structure or the acceleration of that as well as the stroke of the auxiliary mass. From the experimental results, it is shown that the closed-loop system has good performance even if saturation phenomena of the actuator occur against not only an impulsive disturbance but also the nonstationary random disturbance such as earthquakes.

Original languageEnglish
Pages (from-to)52-59
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume68
Issue number1
Publication statusPublished - 2002 Jan
Externally publishedYes

Fingerprint

Vibration control
Actuators
Gain control
Degrees of freedom (mechanics)
Closed loop systems
Earthquakes
Feedback
Control systems
Controllers

Keywords

  • Active Dynamic Vibration Absorber
  • Actuator Constraints
  • Gain-Scheduled Control
  • Linear Parameter Varying System
  • Vibration Control

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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