Contribution La Mod Lisation Cin Matique Et Dynamique Des Robots Architecture Parall Le
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Parallel Robots
Author: J.-P. Merlet
language: en
Publisher: Springer Science & Business Media
Release Date: 2012-12-06
Parallel robots are closed-loop mechanisms presenting very good performances in terms of accuracy, rigidity and ability to manipulate large loads. Parallel robots have been used in a large number of applications ranging from astronomy to flight simulators and are becoming increasingly popular in the field of machine-tool industry. This book presents a complete synthesis of the latest results on the possible mechanical architectures, analysis and synthesis of this type of mechanism. It is intended to be used by students (with over 100 exercises and numerous Internet addresses), researchers (with over 500 references and anonymous ftp access to the code of some algorithms presented in this book) and engineers (for which practical results and applications are presented).
Parallel Robots
Parallel robots are closed-loop mechanisms presenting very good performances in terms of accuracy, rigidity and ability to manipulate large loads. Parallel robots have been used in a large number of applications ranging from astronomy to flight simulators and are becoming increasingly popular in the field of machine-tool industry. This book presents a complete synthesis of the latest results on the possible mechanical architectures, analysis and synthesis of this type of mechanism. It is intended to be used by students (with over 100 exercises and numerous Internet addresses), researchers (with over 500 references and anonymous ftp access to the code of some algorithms presented in this book) and engineers (for which practical results and applications are presented).
Contribution à la modélisation cinématique et dynamique des robots à architecture parallèle
L'OBJECTIF DE CETTE THESE EST D'APPORTER DES ELEMENTS DE REPONSE AUX PROBLEMES POSES PAR LA REALISATION D'UNE COMMANDE DYNAMIQUE REALISTE, SOUS LA CONTRAINTE TEMPS REEL, DE ROBOTS A ARCHITECTURE PARALLELE. LA NOTION DE CALCUL EN TEMPS REEL EST ABORDEE DANS LA PREMIERE PARTIE DE CE MEMOIRE. CETTE CONTRAINTE IMPLIQUE UNE OPTIMISATION DE LA COMPLEXITE DES CALCULS DES MODELES CINEMATIQUE ET DYNAMIQUE. L'APPROCHE PROPOSEE DANS CE MEMOIRE EST BASEE SUR UN FORMALISME GLOBAL. EN CONSIDERANT LE ROBOT PARALLELE COMME UNE ENTITE COMPOSEE DE PLUSIEURS ROBOTS SERIELS TRANSPORTANT UNE CHARGE COMMUNE, UNE EXPRESSION FACTORISEE DE LA MATRICE JACOBIENNE CINEMATIQUE ET DE LA MATRICE INERTIELLE EXPRIMEE DANS L'ESPACE ARTICULAIRE ET OPERATIONNEL, SONT DETERMINEES. CES FACTORISATIONS REPRESENTENT LES BASES POUR LE DEVELOPPEMENT D'ALGORITHMES PARALLELES, EN VUE D'UNE IMPLANTATION SUR UNE ARCHITECTURE INFORMATIQUE DE TYPE MULTIPROCESSEURS. LA NOTION DE MODELE REALISTE EST TRAITEE DANS LA DEUXIEME PARTIE DE CE MEMOIRE, PAR LE CALIBRAGE DES MODELES GEOMETRIQUE ET DYNAMIQUE. DANS UN PREMIER TEMPS, LES DIFFERENTES PHASES DU CALIBRAGE SONT PRESENTEES, A SAVOIR : LA MESURE, L'IDENTIFICATION ET LA CORRECTION. LA PREMIERE ETAPE A NECESSITE LA CONCEPTION ET LA MISE EN OEUVRE D'UN CAPTEUR TACTILE TRIDIMENSIONNEL, DESTINE AU CALIBRAGE EN MODE STATIQUE DES ROBOTS PARALLELES. A PARTIR DES MESURES FOURNIES PAR LE CAPTEUR, LES PARAMETRES GEOMETRIQUES SONT DETERMINES PAR UN ALGORITHME D'IDENTIFICATION NON LINEAIRE. CETTE METHODOLOGIE EST TESTEE EXPERIMENTALEMENT SUR UN ROBOT PARALLELE A SIX DEGRES DE LIBERTE. L'IDENTIFICATION DES PARAMETRES DYNAMIQUES DE CE ROBOT EST EGALEMENT EFFECTUEE. DES RESULTATS DE SIMULATION SONT PRESENTES.