Dynamic Parameters Identification of an Industrial Robot: a constrained nonlinear WLS approach - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2018

Dynamic Parameters Identification of an Industrial Robot: a constrained nonlinear WLS approach

Résumé

This paper brings an identified model for a 6 degrees of freedom (dof) industrial robot, the Denso VP-6242G robot, with an end-effector composed of a spherical handle, fixed on a force sensor. This robot is intended to experiments in the field of Physical Human-Robot Interactions (PHRIs), for co-manipulation purposes. The control algorithms that are necessary to achieve a good PHRI, require a good knowledge of the robot dynamical model, especially the inertia matrix which should be positive definite whatever the configuration of the robot. However, most of industrial robots are supplied without any datasheet containing the inertial parameters nor Computer-Aided-Design (CAD) model. Hence, we propose to apply an identification procedure to experimental data, based on the Inverse Dynamic model Identification Method (IDIM). To ensure the positive definiteness of the inertia matrix, the used optimization step addresses the problem of nonlinear Weighted Least Squares (WLS), derived from the mathematical formulation of the identification problem, under a set of nonlinear constraints in the parameters. A validation step permits to check the efficiency of this approach for the Denso robot.
Fichier principal
Vignette du fichier
MEDIdentificationBTC2018.pdf (739.05 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01866334 , version 1 (03-09-2018)

Identifiants

Citer

Abdelkrim Bahloul, Sami Tliba, Yacine Chitour. Dynamic Parameters Identification of an Industrial Robot: a constrained nonlinear WLS approach. IEEE MED'18 : The 26th Mediterranean Conference on Control and Automation, Jun 2018, Zadar, Croatia. pp.21-26, ⟨10.1109/MED.2018.8442630⟩. ⟨hal-01866334⟩
100 Consultations
320 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More