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 a Publication in Advanced Robotics Journal

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Ridha36




Male Number of posts : 4
Localisation : Skikda
Registration date : 2008-10-26

a Publication in Advanced Robotics Journal Empty
PostSubject: a Publication in Advanced Robotics Journal   a Publication in Advanced Robotics Journal I_icon_minitimeTue 24 Jul - 1:05

Journal : Advanced Robotics
Multiobjective Optimization of 6-dof UPS Parallel Manipulators
DOI: 10.1080/01691864.2012.703168

Ridha Kelaiaia ab*, Abdelouahab Zaatri c & Olivier Company b
Version of record first published: 20 Jul 2012

http://www.tandfonline.com/doi/abs/10.1080/01691864.2012.703168

Abstract

The optimal design of parallel kinematic machines goes through two fundamental stages. The first one concerns the structural synthesis. It enables, a priori, to determine the choice of families of the most adapted architectures according to the desired applications such as flight simulators, machine-tools, medical applications, etc. This can be done by applying several techniques such as: screw theory, Lie groups, graph theory, finite element method, etc. The second one concerns the dimensional synthesis and aims to determine the dimensions of the architecture that has been selected during the structural synthesis. This stage remains a major task because the criteria of performance of a given architecture are strongly dependent on its sizing. In this paper, we present a dimensioning methodology of the architectural parameters of the 6-dof UPS (U: universal joint, P: prismatic joint, and S: ball-and-socket joint) parallel manipulators (the positions of the attachment points of the actuators on the base and mobile plate as well as the radius of the base and the mobile plate). The problem will be formulated as a multiobjective optimization problem (MOOP) by taking into account simultaneously several criteria of performance such as the workspace, kinetostatic performances, stiffness, and dynamic dexterity. The SPEA-II genetic algorithm is adopted to solve this type of MOOP.

Keywords
dimensioning methodology, multiobjective optimization, 6-dof UPS parallel manipulators, criteria of performance, genetic algorithm SPEA-II

Author affiliations

a Faculté de technologie, Université 20 Août 1955 Skikda, Bp 26 Route El hadaek, Skikda, Algérie.

b The Montpellier Laboratory of Informatics, Robotics, and Microelectronics, UMR 5506 CNRS-UM2, 161 rue Ada, 34392, Montpellier Cedex 5, France.

c Laboratory of Advanced Technology Applications, University of Constantine, Constantine, Algeria
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