Magneto-mechanical actuation model for fin-based locomotion

@article{Carbajal2010MagnetomechanicalAM,
  title={Magneto-mechanical actuation model for fin-based locomotion},
  author={Juan Pablo Carbajal and Naveen Suresh Kuppuswamy},
  journal={ArXiv},
  year={2010},
  volume={abs/1108.4448}
}
In this paper, we report the results from the analysis of a numerical model used for the design of a magnetic linear actuator with applications to fi locomotion. Most of the current robotic fi sh generate bending motion using rotary motors that implies at least one mechanical conversion of the motion. We seek a solution that directly bends the fi n and, at the same time, is able to exploit the magneto-mechanical properties of the fi n material. This strong fi n‐actuator coupling blends the… 

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References

SHOWING 1-10 OF 22 REFERENCES

A continuous dynamic beam model for swimming fish

The calculated muscle bending moment from the whole dynamic system has a wave speed almost the same as that observed for EMG-onset and a starting instant close to that of muscle activation, suggesting a consistent matching between the muscle activation pattern and the dynamic response of the system in steady swimming.

Passive locomotion via normal-mode coupling in a submerged spring–mass system

The oscillations of a class of submerged mass–spring systems are examined. An inviscid fluid model is employed to show that the hydrodynamic effects couple the normal modes of these systems. This

Passive locomotion of a simple articulated fish-like system in the wake of an obstacle

The behaviour of a passive system of two-dimensional linked rigid bodies in the wake of a circular cylinder at Re=100 is studied computationally. The three rigid bodies are connected by two

Fish biorobotics: kinematics and hydrodynamics of self-propulsion

This paper discusses, using aquatic propulsion in fishes as a focal example, how using robotic models can lead to new insights in the study of aquatic propulsion, and uses two examples: pectoral fin function, and hydrodynamic interactions between dorsal and caudal fins.

An elastic rod model for anguilliform swimming

It is argued that tapered bodies with reduced caudal (tail-end) activation (to produce uniform intrinsic curvature) swim faster than ones with uniform activation, and it is shown that laterally-uniform activation yields stable straight swimming and laterally differential activation levels lead to stable turns.

Swimming in an inviscid fluid

  • E. Kanso
  • Physics, Environmental Science
  • 2010
We present a set of equations governing the motion of a body due to prescribed shape changes in an inviscid, planar fluid with nonzero vorticity. The derived equations, when neglecting vorticity,

The added mass of a flexible plate oscillating in a fluid

On the swimming of a flexible body in a vortex street

  • S. Alben
  • Physics
    Journal of Fluid Mechanics
  • 2009
We formulate a new theoretical model for the swimming of a flexible body in a vortex street. We consider the class of periodic travelling-wave body motions, in the limit of small amplitude. We

A Reconciliation of Viscous and Inviscid Approaches to Computing Locomotion of Deforming Bodies

We present a formulation for coupled solutions of fluid and body dynamics in problems of biolocomotion. This formulation unifies the treatment at moderate to high Reynolds number with the

Swimming performance of a biomimetic compliant fish-like robot

Digital particle image velocimetry and fluorescent dye visualization are used to characterize the performance of fish-like swimming robots. During nominal swimming, these robots produce a ‘V’-shaped