AIMC Topic: Animal Fins

Clear Filters Showing 21 to 30 of 38 articles

A bio-inspired robotic fish utilizes the snap-through buckling of its spine to generate accelerations of more than 20g.

Bioinspiration & biomimetics
Inspired by the fastest observed live fishes, we have designed, built and tested a robotic fish that emulates the fast-start maneuver of these fishes and generates acceleration and velocity magnitudes comparable to those of the live fishes within the...

The effect of sensory feedback topology on the entrainment of a neural oscillator with a compliant foil for swimming systems.

Bioinspiration & biomimetics
The sensorimotor system of fish endows them with remarkable swimming performance that is unmatched by current underwater robotic vehicles. To close the gap between the capabilities of fish and the capabilities of underwater vehicles engineers are inv...

Dual-sensor fusion based attitude holding of a fin-actuated robotic fish.

Bioinspiration & biomimetics
In nature, the lateral line system (LLS) is a critical sensor organ of fish for rheotaxis in complex environments. Inspired by the LLS, numbers of artificial lateral line systems (ALLSs) have been designed to the fish-like robots for flow field perce...

Robotic device shows lack of momentum enhancement for gymnotiform swimmers.

Bioinspiration & biomimetics
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
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
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
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
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
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
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 ...