Document Type
Article
Publication Date
2017
Publication Title
Bioinspiration & Biomimetics
Abstract
It is hypothesized that butterfly wing scale geometry and surface patterning may function to improve aerodynamic efficiency. In order to investigate this hypothesis, a method to measure butterfly flapping kinematics optically over long uninhibited flapping sequences was developed. Statistical results for the climbing flight flapping kinematics of 11 butterflies, based on a total of 236 individual flights, both with and without their wing scales, are presented. Results show, that for each of the 11 butterflies, the mean climbing efficiency decreased after scales were removed. Data was reduced to a single set of differences of climbing efficiency using are paired t-test. Results show a mean decrease in climbing efficiency of 32.2% occurred with a 95% confidence interval of 45.6%–18.8%. Similar analysis showed that the flapping amplitude decreased by 7% while the flapping frequency did not show a significant difference. Results provide strong evidence that butterfly wing scale geometry and surface patterning improve butterfly climbing efficiency. The authors hypothesize that the wing scale's effect in measured climbing efficiency may be due to an improved aerodynamic efficiency of the butterfly and could similarly be used on flapping wing micro air vehicles to potentially achieve similar gains in efficiency.
Volume
12
Issue
1
DOI
https://doi.org/10.1088/1748-3190/aa551d
ISSN
1748-3190
Recommended Citation
Slegers, Nathan; Heilman, Michael; Cranford, Jacob; Lang, Amy; Yoder, John; and Habegger, Maria Laura, "Beneficial Aerodynamic Effect of Wing Scales on the Climbing Flight of Butterflies" (2017). Faculty Publications - Biomedical, Mechanical, and Civil Engineering. 97.
https://digitalcommons.georgefox.edu/mece_fac/97
Included in
Biomechanics Commons, Biophysics Commons, Engineering Commons
Comments
‘This is the Accepted Manuscript version of an article accepted for publication in Bioinspiration & Biomimetics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1748-3190/aa551d .