Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint Manipulators

In this paper, we introduce an adaptive type-2 fuzzy logic controller (FLC) for flexible-joint manipulators with structured and unstructured dynamical uncertainties. Simplified interval fuzzy sets are used for real-time efficiency, and internal stability is enhanced by adopting a trade-off strategy...

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Main Authors: Hicham Chaoui, Wail Gueaieb, Mohammad Biglarbegian, Mustapha C. E. Yagoub
Format: Article
Language:English
Published: MDPI AG 2013-05-01
Series:Robotics
Subjects:
Online Access:http://www.mdpi.com/2218-6581/2/2/66
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author Hicham Chaoui
Wail Gueaieb
Mohammad Biglarbegian
Mustapha C. E. Yagoub
author_facet Hicham Chaoui
Wail Gueaieb
Mohammad Biglarbegian
Mustapha C. E. Yagoub
author_sort Hicham Chaoui
collection DOAJ
description In this paper, we introduce an adaptive type-2 fuzzy logic controller (FLC) for flexible-joint manipulators with structured and unstructured dynamical uncertainties. Simplified interval fuzzy sets are used for real-time efficiency, and internal stability is enhanced by adopting a trade-off strategy between the manipulator’s and the actuators’ velocities. Furthermore, the control scheme is independent of the computationally expensive noisy torque and acceleration signals. The controller is validated through a set of numerical simulations and by comparing it against its type-1 counterpart. The ability of the adaptive type-2 FLC in coping with large magnitudes of uncertainties yields an improved performance. The stability of the proposed control system is guaranteed using Lyapunov stability theory.
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spelling doaj.art-4df6959dc5674a888e77dedde75ed5282022-12-22T04:25:15ZengMDPI AGRobotics2218-65812013-05-0122669110.3390/robotics2020066Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint ManipulatorsHicham ChaouiWail GueaiebMohammad BiglarbegianMustapha C. E. YagoubIn this paper, we introduce an adaptive type-2 fuzzy logic controller (FLC) for flexible-joint manipulators with structured and unstructured dynamical uncertainties. Simplified interval fuzzy sets are used for real-time efficiency, and internal stability is enhanced by adopting a trade-off strategy between the manipulator’s and the actuators’ velocities. Furthermore, the control scheme is independent of the computationally expensive noisy torque and acceleration signals. The controller is validated through a set of numerical simulations and by comparing it against its type-1 counterpart. The ability of the adaptive type-2 FLC in coping with large magnitudes of uncertainties yields an improved performance. The stability of the proposed control system is guaranteed using Lyapunov stability theory.http://www.mdpi.com/2218-6581/2/2/66type-2 fuzzy controluncertain systemsrobot manipulatorsflexible structuresadaptive control
spellingShingle Hicham Chaoui
Wail Gueaieb
Mohammad Biglarbegian
Mustapha C. E. Yagoub
Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint Manipulators
Robotics
type-2 fuzzy control
uncertain systems
robot manipulators
flexible structures
adaptive control
title Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint Manipulators
title_full Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint Manipulators
title_fullStr Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint Manipulators
title_full_unstemmed Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint Manipulators
title_short Computationally Efficient Adaptive Type-2 Fuzzy Control of Flexible-Joint Manipulators
title_sort computationally efficient adaptive type 2 fuzzy control of flexible joint manipulators
topic type-2 fuzzy control
uncertain systems
robot manipulators
flexible structures
adaptive control
url http://www.mdpi.com/2218-6581/2/2/66
work_keys_str_mv AT hichamchaoui computationallyefficientadaptivetype2fuzzycontrolofflexiblejointmanipulators
AT wailgueaieb computationallyefficientadaptivetype2fuzzycontrolofflexiblejointmanipulators
AT mohammadbiglarbegian computationallyefficientadaptivetype2fuzzycontrolofflexiblejointmanipulators
AT mustaphaceyagoub computationallyefficientadaptivetype2fuzzycontrolofflexiblejointmanipulators