Bio-inspired Aquatic Propulsion Mechanism Using a Fin with a Variable-Effective-Length Spring

• Nakabayashi Masataka

  Graduate School of Science and Technology, Shinshu University

• Soyano Hirotake

  Faculty of Textile Science and Technology, Shinshu University

• Kobayashi Shunichi

  Faculty of Textile Science and Technology, Shinshu University

• Morikawa Hirohisa

  Faculty of Textile Science and Technology, Shinshu University

Bibliographic Information

Other Title

• -Development of a Propulsion Mechanism using the Swaying and Yawing Movements of a Fin-

Abstract

Elastic fins may represent a significant advance over traditional screw propellers for the propulsion of underwater vehicle However, the optimum elasticity of the fin is not constant and changes with the required motion and the environment. To address this, we initially developed a fin with a variable-effective-length spring and documented the thrust characteristics given a simple yawing movement of the fin.<br>In this study, we developed a new propulsion mechanism that allows both swaying and yawing movements of the fin. We evaluated the behavior of the fin and the flow field surrounding the fin.

Journal

• Journal of Aero Aqua Bio-mechanisms

  Journal of Aero Aqua Bio-mechanisms 1 (1), 104-110, 2010

  Society of Aero Aqua Bio-mechanisms

Keywords

• Propulsion mechanism
• Variable-effective-length spring
• Thrust force
• Elastic fin
• Flow visualization

Details

• CRID: 1390282680320788736
• NII Article ID: 130000428300
• DOI: 10.5226/jabmech.1.104
• ISSN: 21851522
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed