Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Evaluation Of Impact Models For Body-to-barrier Collisions
Submission Author:
Arthur Mereles , SP
Co-Authors:
Marcus Varanis, Anderson Langone Silva, José Manoel Balthazar, ROBSON PEDERIVA, Arthur Mereles
Presenter: Arthur Mereles
doi://10.26678/ABCM.COBEM2017.COB17-1061
Abstract
Impact is a complex phenomenon present in a great number of applications, and in many of them the prediction of the properties of the colliding bodies after the phenomenon is of vital importance. In order do perform that, impact models need to be created to represent the phenomenon, so that one can predict the properties of the bodies in contact. However, the modeling is challenging due to the complexity of the phenomenon in question. Therefore, this work presents the evaluation of two impact models of a body-to-barrier collision: a classic Kelvin-Voigt model with an elasto-plastic spring and a nonlinear force-deflection model. As it was shown, the latter model it's more suitable for the impact modeling, as the coefficient of restitution changes with the increase of the impact velocity, which is not seen in the Kelvin-Voigt model. In order to evaluate the models proposed their responses were compared with experimental signals.
Keywords
Impact model, Body-to-barrier collision, experimental signal, nonlinear model
