Eliminating Stick-Slip Vibrations in Drill-Strings with a Dual-Loop Control Strategy Optimised by the CRO-SL Algorithm

Jorge Pérez-Aracil, Carlos Camacho-Gómez, Emiliano Pereira, Vahid Vaziri, Sumeet S. Aphale and Sancho Salcedo-Sanz
Additional contact information
Jorge Pérez-Aracil: Department of Signal Processing and Communications, Universidad de Alcalá, Alcalá de Henares, 28805 Madrid, Spain
Carlos Camacho-Gómez: Department of Information Systems, Universidad Politécnica de Madrid, Campus Sur, 28031 Madrid, Spain
Emiliano Pereira: Department of Signal Processing and Communications, Universidad de Alcalá, Alcalá de Henares, 28805 Madrid, Spain
Vahid Vaziri: School of Engineering, University of Aberdeen, Aberdeen AB24 3UE, UK
Sumeet S. Aphale: School of Engineering, University of Aberdeen, Aberdeen AB24 3UE, UK
Sancho Salcedo-Sanz: Department of Signal Processing and Communications, Universidad de Alcalá, Alcalá de Henares, 28805 Madrid, Spain

Mathematics, 2021, vol. 9, issue 13, 1-16

Abstract: Friction-induced stick-slip vibrations are one of the major causes for down-hole drill-string failures. Consequently, several nonlinear models and control approaches have been proposed to solve this problem. This work proposes a dual-loop control strategy. The inner loop damps the vibration of the system, eliminating the limit cycle due to nonlinear friction. The outer loop achieves the desired velocity with a fast time response. The optimal tuning of the control parameters is carried out with a multi-method ensemble meta-heuristic, the Coral Reefs Optimisation algorithm with Substrate Layer (CRO-SL). It is an evolutionary-type algorithm that combines different search strategies within a single population, obtaining a robust, high-performance algorithm to tackle hard optimisation problems. An application example based on a real nonlinear dynamics model of a drill-string illustrates that the controller optimised by the CRO-SL achieves excellent performance in terms of stick-slip vibrations cancellation, fast time response, robustness to system parameter uncertainties and chattering phenomenon prevention.

Keywords: stick-slip; drill-strings; vibration control; coral reefs optimisation; meta-heuristics (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/9/13/1526/pdf (application/pdf)
https://www.mdpi.com/2227-7390/9/13/1526/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:9:y:2021:i:13:p:1526-:d:584884

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().