• Corpus ID: 119115524

Self-propulsion of V-shape micro-robot

  title={Self-propulsion of V-shape micro-robot},
  author={Vladimir A. Vladimirov},
  journal={arXiv: Fluid Dynamics},
  • V. Vladimirov
  • Published 13 September 2012
  • Engineering
  • arXiv: Fluid Dynamics
In this paper we study the self-propulsion of a symmetric V-shape micro-robot (or V-robot) which consists of three spheres connected by two arms with an angle between them; the arms' lengths and the angle are changing periodically. Using an asymptotic procedure containing two-timing method and a distinguished limit, we obtain analytic expressions for the self-propulsion velocity and Lighthill's efficiency. The calculations show that a version of V-robot, aligned perpendicularly to the direction… 

On the self-propulsion of an $N$ -sphere micro-robot

Abstract The aim of this paper is to describe the self-propulsion of a micro-robot (or micro-swimmer) consisting of $N$ spheres moving along a fixed line. The spheres are linked to each other by arms

Theory of a triangular micro-robot

In this paper we study the self-propulsion of a triangular micro-robot (or triangle-robot) which consists of three spheres connected by three rods; the rods' lengths are changing independently and

Dumbbell micro-robot driven by flow oscillations

Abstract In this paper we study the self-propulsion of a dumbbell micro-robot submerged in a viscous fluid. The micro-robot consists of two rigid spherical beads connected by a rod or a spring; the



On self-propulsion of micro-machines at low Reynolds number: Purcell's three-link swimmer

Using slender-body hydrodynamics in the inertialess limit, we examine the motion of Purcell's swimmer, a planar, fore–aft-symmetric three-link flagellum or propulsive mechanism that translates by

Infinite models for ciliary propulsion

  • J. Blake
  • Geology
    Journal of Fluid Mechanics
  • 1971
This paper discusses two infinite length models (planar and cylindrical) for ciliary propulsion of microscopic organisms. Through the concept of an extensible envelope (instantaneous surface covering

Optimal Strokes for Low Reynolds Number Swimmers: An Example

It is shown how to cast the problem of swimming in the language of control theory, prove global controllability (which implies that the three-sphere swimmer can indeed swim), and propose a numerical algorithm to compute optimal strokes (which turn out to be suitably defined sub-Riemannian geodesics).

Analysis of the swimming of microscopic organisms

  • G. Taylor
  • Physics
    Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
  • 1951
Large objects which propel themselves in air or water make use of inertia in the surrounding fluid. The propulsive organ pushes the fluid backwards, while the resistance of the body gives the fluid a

Stochastic low Reynolds number swimmers

A theoretical formulation for describing the 'stochastic motor' that drives the motion of low Reynolds number swimmers based on this concept is presented, and it is used to study the propulsion of a simpleLow Reynolds number swimmer, namely, the three-sphere swimmer model.

The orientation of spheroidal microorganisms swimming in a flow field

  • T. PedleyJ. Kessler
  • Physics
    Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1987
This paper shows how to calculate local equilibrium orientations of inhomogeneous spheroidal particles placed in a flow field. The results can be applied either to dilute suspensions of inert

Microscopic artificial swimmers

It is shown that a linear chain of colloidal magnetic particles linked by DNA and attached to a red blood cell can act as a flexible artificial flagellum, which induces a beating pattern that propels the structure, and that the external fields can be adjusted to control the velocity and the direction of motion.

Remotely powered self-propelling particles and micropumps based on miniature diodes.

It is shown that various types of miniature semiconductor diodes floating in water act as self-propelling particles when powered by an external alternating electric field.

A basic swimmer at low Reynolds number

Swimming and pumping at low Reynolds numbers are subject to the “Scallop theorem”, which states that there is no net fluid flow for time-reversible motions. Microscale organisms such as bacteria and

Modeling microscopic swimmers at low Reynolds number.

A new class of low Reynolds number swimmers is proposed, generalized three bead swimmers that can change both the length of their arms and the angle between them, and a design for a microstructure capable of moving in three dimensions is suggested.