AIMC Topic: Animal Fins
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Robotic device shows lack of momentum enhancement for gymnotiform swimmers.
Bioinspiration & biomimetics
Jan 23, 2019
Many fish generate thrust by undulating one or multiple elongated fins while keeping their body straight. This propulsion mechanism has stimulated interest in both biology and bio-inspired marine propulsion because its maneuverability and efficiency ...
A dual caudal-fin miniature robotic fish with an integrated oscillation and jet propulsive mechanism.
Bioinspiration & biomimetics
Mar 27, 2018
This paper presents the development of a biomimetic robotic fish that uses an integrated oscillation and jet propulsive mechanism to enable good swimming performance for small robotic fish. The designed robotic fish is driven by two caudal fins that ...
Artificial lateral line based local sensing between two adjacent robotic fish.
Bioinspiration & biomimetics
Nov 27, 2017
The lateral line system (LLS) is a mechanoreceptive organ system with which fish and aquatic amphibians can effectively sense the surrounding flow field. The reverse Kármán vortex street (KVS), known to be a typical thrust-producing wake, is commonly...
Propulsive performance of an under-actuated robotic ribbon fin.
Bioinspiration & biomimetics
Jun 2, 2017
Many aquatic animals propelled by elongated undulatory fins can perform complex maneuvers and swim with high efficiency at low speeds. In this propulsion, one or multiple waves travel along an elastic fin composed of flexible rays. In this study, we ...
Optimal chordwise stiffness profiles of self-propelled flapping fins.
Bioinspiration & biomimetics
Sep 15, 2016
The versatility of fish to adapt to different swimming requirements is attributed to their complex muscular system. Fish modulate their fin stiffness and shape for maximized performance. In this paper, optimal chordwise stiffness profiles that maximi...
Development of a bio-inspired transformable robotic fin.
Bioinspiration & biomimetics
Aug 31, 2016
Fish swim by oscillating their pectoral fins forwards and backwards in a cyclic motion such that their geometric parameters and aspect ratios change according to how fast or slow a fish wants to swim; these complex motions result in a complicated hyd...
Fish-inspired robots: design, sensing, actuation, and autonomy--a review of research.
Bioinspiration & biomimetics
Apr 13, 2016
Underwater robot designs inspired by the behavior, physiology, and anatomy of fishes can provide enhanced maneuverability, stealth, and energy efficiency. Over the last two decades, robotics researchers have developed and reported a large variety of ...
Hydrodynamics of a robotic fish tail: effects of the caudal peduncle, fin ray motions and the flow speed.
Bioinspiration & biomimetics
Feb 8, 2016
Recent advances in understanding fish locomotion with robotic devices have included the use of biomimetic flapping based and fin undulatory locomotion based robots, treating two locomotions separately from each other. However, in most fish species, p...
Evolutionary multiobjective design of a flexible caudal fin for robotic fish.
Bioinspiration & biomimetics
Nov 25, 2015
Robotic fish accomplish swimming by deforming their bodies or other fin-like appendages. As an emerging class of embedded computing system, robotic fish are anticipated to play an important role in environmental monitoring, inspection of underwater s...
Effects of non-uniform stiffness on the swimming performance of a passively-flexing, fish-like foil model.
Bioinspiration & biomimetics
Oct 8, 2015
Simple mechanical models emulating fish have been used recently to enable targeted study of individual factors contributing to swimming locomotion without the confounding complexity of the whole fish body. Yet, unlike these uniform models, the fish b...
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