Analysis on Vibration Characteristics of Air Film Damping with Open Boundaries
Joint Authors
Zhang, Hong
Cui, Dong-ze
Jiao, Ying-jie
Chen, Xi
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-02
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Air film damping (AFD) has been a research focus for the fatigue damage suppression problem of aeroengine blade decades ago; however significant progress has not been made in the past decade.
In this paper, we present a theoretical model and experimental analysis about this technology.
The dissipation mechanism of the AFD is established by assumption that the viscous gas inside the thin air film is Poiseuille flow and the energy dissipation equation of AFD with open boundaries is deduced and evaluated.
Blade simulated testing specimens are designed.
The vibration measurements are performed by RC-3000 vibration exciter and detected by applying the contactless laser vibrometer system.
The theoretical results consist with the experimental results, and both show that AFD appears promising performance in vibration suppression.
We also present how the structure parameters, such as installation position, air film length and thickness, and thin skin thickness, influence the vibration suppression effect.
American Psychological Association (APA)
Zhang, Hong& Cui, Dong-ze& Jiao, Ying-jie& Chen, Xi. 2019. Analysis on Vibration Characteristics of Air Film Damping with Open Boundaries. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1194325
Modern Language Association (MLA)
Zhang, Hong…[et al.]. Analysis on Vibration Characteristics of Air Film Damping with Open Boundaries. Mathematical Problems in Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1194325
American Medical Association (AMA)
Zhang, Hong& Cui, Dong-ze& Jiao, Ying-jie& Chen, Xi. Analysis on Vibration Characteristics of Air Film Damping with Open Boundaries. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1194325
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194325