Application of a time-delayed control system in vibration suppression

This paper provides a new perspective on the design of a time-delayed active vibration absorber, which can eliminate the vibration of the primary structure subject to a sinusoidal disturbance. This control system features one output feedback. The close relationship between the time-delayed active vi...

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Bibliographic Details
Published inIEEE International Conference Mechatronics and Automation, 2005 Vol. 1; pp. 230 - 235 Vol. 1
Main Authors Jie Liu, Kefu Liu, Hao Bai
Format Conference Proceeding
LanguageEnglish
Published IEEE 2005
Subjects
Control systems
Damping
Delay effects
Electromagnetic forces
Frequency
PD control
Stability
Steady-state
Tuning
Vibration control
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Summary:This paper provides a new perspective on the design of a time-delayed active vibration absorber, which can eliminate the vibration of the primary structure subject to a sinusoidal disturbance. This control system features one output feedback. The close relationship between the time-delayed active vibration absorber and the traditional PD controller is revisited with an assistance of a vector interpretation. The stability of the combined system is discussed. The attention is focused on the difficulty of maintaining the stability of the combined system while achieving a marginal stability of the absorber system. An electromagnetic active vibration absorber is developed. An online tuning strategy is developed to automatically find the optimum gain while the delay time is fixed. The experimental results show that the proposed control system can suppress the vibration of the primary system significantly.
ISBN:9780780390447
078039044X
ISSN:2152-7431
DOI:10.1109/ICMA.2005.1626552