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Title: Scaling of bird wings and feathers for efficient flight
Authors: Sullivan, T.N.Meyers, M.A.Arzt, E.
Publishers Version: https://doi.org/10.1126/sciadv.aat4269
Issue Date: 2019
Published in: Science Advances 5 (2019), Nr. 1
Publisher: Washington, D.C. : American Association for the Advancement of Science
Abstract: Aves are an incredibly diverse class of animals, ranging greatly in size and thriving in a wide variety of environments. Here, we explore the scaling trends of bird wings in connection with their flight performance. The tensile strength of avian bone is hypothesized to be a limiting factor in scaling the humerus with mass, which is corroborated by its experimentally determined allometric scaling trend. We provide a mechanics analysis that explains the scaling allometry of the wing humerus length, L H , with body weight W, L H ∝ W 0.44 . Lastly, wing feathers are demonstrated to generally scale isometrically with bird mass, with the exception of the spacing between barbules, which falls within the same range for birds of all masses. Our findings provide insight into the “design” of birds and may be translatable to more efficient bird-inspired aircraft structures. © 2019 American Association for the Advancement of Science. All rights reserved.
Keywords: Aircraft manufacture; Airframes; Bone; Tensile strength; Aircraft structure; Allometric scaling; Body weight; Mechanics analysis; Scaling trends; Birds
DDC: 620
License: CC BY-NC 4.0 Unported
Link to License: https://creativecommons.org/licenses/by-nc/4.0/
Appears in Collections:Ingenieurwissenschaften



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