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Title
Japanese: 
English:Penguin-mimetic flapping-wing propulsion 
Author
Japanese: 田中 博人.  
English: Hiroto Tanaka.  
Language English 
Journal/Book name
Japanese: 
English: 
Volume, Number, Page        
Published date June 16, 2021 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English:AIFT Interdisciplinary Online Seminar Series of Biolocomotion 
Conference site
Japanese: 
English:Rostock 
Official URL http://aifit.cfd.tu-berlin.de/wordpress/?page_id=449
 
Abstract Penguins have evolved to swim underwater. They are capable of high-speed foraging, agile maneuver, and deep diving by the flapping wings, that can be a promising model for biomimetic underwater robots in the future. The biomechanics and hydrodynamics studies of penguin swimming, however, are sparse to date, remaining the details of the propulsion mechanism unclear. In this talk, the first 3-D motion analysis of swimming penguins at an aquarium will be explained. Quasi-steady hydrodynamic calculation suggests that the wing deformation perhaps contribute to thrust generation. Then, an electric 3-DoF penguin-mimetic wing and its hydrodynamic experiment in a water tunnel will be demonstrated. By active control of each motion, magnitude and direction of the thrust largely change. The above biomimetic approach can contribute to both biology and engineering in swimming penguins.

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