Nom du corpus

Corpus Systématique Animale

Titre du document

Inertia may limit efficiency of slow flapping flight, but mayflies show a strategy for reducing the power requirements of loiter

Lien vers le document
Éditeur
IOP
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Insectes_v2b_00084, Oiseaux_v2b_00147
Auteur(s)
  • James R Usherwood
Affiliation(s)
  • Structure and Motion Lab., The Royal Veterinary College, North Mymms, Hatfield, Herts AL9 7TA, UK
Résumé

Predictions from aerodynamic theory often match biological observations very poorly. Many insects and several bird species habitually hover, frequently flying at low advance ratios. Taking helicopter-based aerodynamic theory, wings functioning predominantly for hovering, even for quite small insects, should operate at low angles of attack. However, insect wings operate at very high angles of attack during hovering; reduction in angle of attack should result in considerable energetic savings. Here, I consider the possibility that selection of kinematics is constrained from being aerodynamically optimal due to the inertial power requirements of flapping. Potential increases in aerodynamic efficiency with lower angles of attack during hovering may be outweighed by increases in inertial power due to the associated increases in flapping frequency. For simple hovering, traditional rotary-winged helicopter-like micro air vehicles would be more efficient than their flapping biomimetic counterparts. However, flapping may confer advantages in terms of top speed and manoeuvrability. If flapping-winged micro air vehicles are required to hover or loiter more efficiently, dragonflies and mayflies suggest biomimetic solutions.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - physiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Engineering ; 3 - Engineering (miscellaneous)
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Molecular Medicine
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biophysics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biotechnology
Catégories WoS
  • 1 - science ; 2 - robotics
  • 1 - science ; 2 - materials science, biomaterials
  • 1 - science ; 2 - engineering, multidisciplinary
Identifiant ISTEX
1B733EFA804A10CD544F79304109A6FF5DE0FDC3
Revue

Bioinspiration & Biomimetics

Année de publication
2009
Présence de XML structuré
Oui
Version PDF
1.4
Score qualité du texte
7.012
Sous-corpus
  • Insectes
  • Oiseaux
Type de publication
Journal
ark:/67375/0T8-MS3Z1DTQ-C
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