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Mechanics of Mobile Robots with Mecanum Wheels

  • Klaus Zimmermann
  • , Igor Zeidis
  • , Florian Schale
  • , Pedro Alonso Flores-Alvarez
  • Technical University of Ilmenau

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

4 Scopus citations

Abstract

The mechanics of a robot with Mecanum wheels is studied. A Mecanum wheel is a wheel with rollers attached to its circumference. Each roller rotates about an axis that forms an angle with the plane of the disk. In robotics, a simplified approach, in which the equations of non-holonomic kinematic constraints are solved approximately by means of a pseudo-inverse matrix, is frequently applied. Such an approximate approach leads to “holonomization” of the system and allows Lagrange’s equations of the second kind to be used. In the present paper, the equations of motion are obtained on the basis of the principles of non-holonomic mechanics. The optimal torques to be applied to the wheels and the respective voltages to be fed to the electric in order to provide a prescribed trajectory for the robot’s center of mass are defined. The theoretical results are compared with measured data obtained by experiments with a prototype.

Original languageEnglish
Title of host publicationCISM International Centre for Mechanical Sciences, Courses and Lectures
PublisherSpringer International Publishing
Pages103-111
Number of pages9
DOIs
StatePublished - 2016
Externally publishedYes

Publication series

NameCISM International Centre for Mechanical Sciences, Courses and Lectures
Volume569
ISSN (Print)0254-1971
ISSN (Electronic)2309-3706

Keywords

  • Conventional Wheel
  • Omnidirectional Wheel
  • Optimal Torque
  • Prescribe Trajectory
  • Respective Voltage

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