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Passive Suppression of Panel Flutter Using a Nonlinear Energy Sink
Joint Authors
Xu, Minglong
Zhou, Jian
Xia, Wei
Source
International Journal of Aerospace Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-11
Country of Publication
Egypt
No. of Pages
14
Abstract EN
A nonlinear energy sink (NES) is used to suppress panel flutter.
A nonlinear aeroelastic model for a two-dimensional flat panel with an NES in supersonic flow is established using the Galerkin method.
First-order piston aerodynamic theory is adopted to build the aerodynamic load.
The effects of NES parameters on flutter boundaries of the panel are investigated using Lyapunov’s indirect method.
The mechanism of the NES suppression of panel flutter is studied through energy analysis.
Effects of NES parameters on aeroelastic responses of the panel are obtained, and a design technique is adopted to find a suitable combination of parameter values of the NES that suppresses the panel flutter effectively.
Results show that the NES can increase or reduce the onset dynamic pressure of the panel flutter and it can reduce the aeroelastic response amplitude effectively within a certain range of dynamic pressure behind the onset dynamic pressure.
The installation position of the NES depends on the direction of the airflow.
The robust characteristics should be considered to find the suitable combination of parameter values of the NES.
American Psychological Association (APA)
Zhou, Jian& Xu, Minglong& Xia, Wei. 2020. Passive Suppression of Panel Flutter Using a Nonlinear Energy Sink. International Journal of Aerospace Engineering،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1168539
Modern Language Association (MLA)
Zhou, Jian…[et al.]. Passive Suppression of Panel Flutter Using a Nonlinear Energy Sink. International Journal of Aerospace Engineering No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1168539
American Medical Association (AMA)
Zhou, Jian& Xu, Minglong& Xia, Wei. Passive Suppression of Panel Flutter Using a Nonlinear Energy Sink. International Journal of Aerospace Engineering. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1168539
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168539