![](/images/graphics-bg.png)
Viscoelastic Characterization of Long-Eared Owl Flight Feather Shaft and the Damping Ability Analysis
Joint Authors
Jinkui, Chu
Le, Guan
Gao, Jia-li
Shang, Hai-xin
Lei, Zhen-kun
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Flight feather shaft of long-eared owl is characterized by a three-parameter model for linear viscoelastic solids to reveal its damping ability.
Uniaxial tensile tests of the long-eared owl, pigeon, and golden eagle flight feather shaft specimens were carried out based on Instron 3345 single column material testing system, respectively, and viscoelastic response of their stress and strain was described by the standard linear solid model.
Parameter fitting result obtained from the tensile tests shows that there is no significant difference in instantaneous elastic modulus for the three birds’ feather shafts, but the owl shaft has the highest viscosity, implying more obvious viscoelastic performance.
Dynamic mechanical property was characterized based on the tensile testing results.
Loss factor (tanδ) of the owl flight feather shaft was calculated to be 1.609 ± 0.238, far greater than those of the pigeon (0.896 ± 0.082) and golden eagle (1.087 ± 0.074).
It is concluded that the long-eared owl flight feather has more outstanding damping ability compared to the pigeon and golden eagle flight feather shaft.
Consequently, the long-eared owl flight feathers can dissipate the vibration energy more effectively during the flying process based on the principle of damping mechanism, for the purpose of vibration attenuation and structure radiated noise reduction.
American Psychological Association (APA)
Gao, Jia-li& Jinkui, Chu& Le, Guan& Shang, Hai-xin& Lei, Zhen-kun. 2014. Viscoelastic Characterization of Long-Eared Owl Flight Feather Shaft and the Damping Ability Analysis. Shock and Vibration،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1047983
Modern Language Association (MLA)
Gao, Jia-li…[et al.]. Viscoelastic Characterization of Long-Eared Owl Flight Feather Shaft and the Damping Ability Analysis. Shock and Vibration No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1047983
American Medical Association (AMA)
Gao, Jia-li& Jinkui, Chu& Le, Guan& Shang, Hai-xin& Lei, Zhen-kun. Viscoelastic Characterization of Long-Eared Owl Flight Feather Shaft and the Damping Ability Analysis. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1047983
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047983