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- Title
Active Vibration Control of Rib Stiffened Plate by Using Decentralized Velocity Feedback Controllers with Inertial Actuators.
- Authors
Ma, Xiyue; Wang, Lei; Xu, Jian
- Abstract
Featured Application: The results and conclusions obtained from this research can offer guides for a practical design of the decentralized feedback controllers with inertial actuators to actively controlling the vibration and noise radiation of the rib stiffened plate. Active control of low frequency vibration and sound radiation from a rib stiffened plate has great practical significance as this structure is widely applied in engineering, such as aircraft or ship fuselage shells. This paper presents an investigation on the performance of active vibration control of the rib stiffened plate by using decentralized velocity feedback controllers with inertial actuators. A simple modeling approach in frequency domain is proposed in this research to calculate the control performance. The theoretical model of vibrating response of the ribbed plate and the velocity feedback controllers is first established. Then, as an important part, the influences of the control gain and the number of the decentralized unit on the control performance are investigated. Results obtained demonstrate that—similar to that of the unribbed plate case—appropriately choosing the number of the unit and their feedback gains can achieve good control results. Too many units or very high feedback gains will not bring further noise reduction.
- Subjects
ACTIVE noise &; vibration control; VIBRATION (Mechanics); PIEZOELECTRIC actuators; FEEDBACK control systems
- Publication
Applied Sciences (2076-3417), 2019, Vol 9, Issue 15, p3188
- ISSN
2076-3417
- Publication type
Letter
- DOI
10.3390/app9153188