Eventos Anais de eventos
DINAME2019
DINAME2019
Mathematical model and validation of the axial dynamics of a vibration-assisted drilling tool
Submission Author:
Eduardo Ferreira Vieira d'Almeida , RJ
Co-Authors:
Eduardo Ferreira Vieira d'Almeida, Romulo Aguiar, Thiago Ritto
Presenter: Eduardo Ferreira Vieira d'Almeida
doi://10.26678/ABCM.DINAME2019.DIN2019-0058
Abstract
A lumped parameter vibro-impact model is proposed to describe the axial dynamics of a vibration-assisted drilling tool prototype, developed with the objective to improve the drilling efficiency in hard-rock drilling applications. A seven degree-of-freedom mathematical model with four possible impact surfaces is developed to describe the axial vibration dynamics inside this vibration-assisted drilling tool. Field data in high acquisition frequency, measured at multiple location, is used to validate the mathematical model.
Keywords
Vibration-assisted drilling, nonlinear dynamics, model validation, Impact
