Titre : Computer-assisted study of the dynamic behavior of a manipulator arm Auteurs : Trésor Kanyiki, François Ntambwe, Revue : Uncertainties and Reliability of Multiphysical Systems Numéro : Issue 2 Volume : 2 Date : 2018/12/14 DOI : 10.21494/ISTE.OP.2018.0310 ISSN : 2514-569X Résumé : This article analyzes a numerical solution to solve the differential equations that describe the dynamic behavior of a multibody system. Mechanics suffer from high experimental costs, in some circumstances, sometimes the engineer is unable to test a model, for example in aerospace engineering, it’s hard to create the conditions under the prototype has to evolve. Simulation tools are essential and have become a competitive engineering system. The dynamic of mechanical systems play a fundamental role in establishing a relationship between the causes and the resulting reactions. In this article, we presented Lagrange’s method to establish the differential equations that describe dynamic behaviors of a multibody system, to applying them to the manipulator arm. Analytical resolution by classical methods proves difficult, numerical methods are essential; furthermore, calculation of one iteration by numerical methods can take several hours manually; the use of simulation software is essential. In this article, we have exploited Easydy software who uses the numerical method Newmark. Éditeur : ISTE OpenScience