Please use this identifier to cite or link to this item:
http://acervodigital.unesp.br/handle/11449/76430
- Title:
- Active vibration control using delayed resonant feedback
- Universidade Estadual Paulista (UNESP)
- 0964-1726
- 1361-665X
- Delayed feedback (DF) control is a well-established technique to suppress single frequency vibration of a non-minimum phase system. Modal control is also a well-established technique to control multiple vibration modes of a minimum phase system. In this paper these techniques are combined to simultaneously suppress multiple vibration modes of a non-minimum phase system involving a small time delay. The control approach is called delayed resonant feedback (DRF) where each modal controller consists of a modal filter to extract the target mode signal from the vibration response, and a phase compensator to account for the phase delay of the mode. The methodology is first discussed using a single mode system. A multi-mode system is then studied and experimental results are presented to demonstrate the efficacy of the control approach for two modes of a beam. It is shown that the system behaves as if each mode under control has a dynamic vibration absorber attached to it, even though the actuator and the sensor are not collocated and there is a time delay in the control system. © 2013 IOP Publishing Ltd.
- 1-Sep-2013
- Smart Materials and Structures, v. 22, n. 9, 2013.
- Active vibration controls
- Dynamic vibration absorber
- Minimum-phase systems
- Non-minimum phase systems
- Resonant feedback
- Single-mode systems
- Vibration response
- Well-established techniques
- Time delay
- Delay control systems
- http://dx.doi.org/10.1088/0964-1726/22/9/095013
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/76430
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