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The control of drilling vibrations: A coupled PDE-ODE modeling approach Cover

The control of drilling vibrations: A coupled PDE-ODE modeling approach

Open Access
|Jul 2016

Abstract

The main purpose of this contribution is the control of both torsional and axial vibrations occurring along a rotary oilwell drilling system. The model considered consists of a wave equation coupled to an ordinary differential equation (ODE) through a nonlinear function describing the rock-bit interaction. We propose a systematic method to design feedback controllers guaranteeing ultimate boundedness of the system trajectories and leading consequently to the suppression of harmful dynamics. The proposal of a Lyapunov-Krasovskii functional provides stability conditions stated in terms of the solution of a set of linear and bilinear matrix inequalities (LMIs, BMIs). Numerical simulations illustrate the efficiency of the obtained control laws.

DOI: https://doi.org/10.1515/amcs-2016-0024 | Journal eISSN: 2083-8492 | Journal ISSN: 1641-876X
Language: English
Page range: 335 - 349
Submitted on: Apr 4, 2015
Accepted on: Dec 2, 2015
Published on: Jul 2, 2016
Published by: University of Zielona Góra
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2016 Belem Saldivar, Sabine Mondié, Juan Carlos Ávila Vilchis, published by University of Zielona Góra
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.