This study extended the knowledge over the improvement of the control performance for a seven degrees-of-freedom (7DOF) humanoid arm. An improved adaptive Gaussian radius basic function neural network (RBFNN) approach was proposed to ensure the reliability and stability of the humanoid arm control. Considering model uncertainties, the established dynamic model for the humanoid arm was divided into a nominal model and an error model. The error model was approximated by the RBFNN learning to compensate the uncertainties. The contribution of this study mainly concentrates on employing fruit fly optimization algorithm (FOA) to optimize the basic width parameter of the RBFNN, which can enhance the capability of the error approximation speed. Additionally, the output weights of the neural network were adjusted using the Lyapunov stability theory to improve the robustness of the RBFN-based error model. The simulation and experiment results demonstrate that the proposed approach is able to optimize the system state with less tracking errors, regulate the uncertain nonlinear dynamic characteristics, and effectively reduce unexpected interferences.
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October 2019
Research-Article
Improved Neural Network Control Approach for a Humanoid Arm
Xinhua Liu,
Xinhua Liu
School of Mechatronics Engineering,
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
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Xiaohui Zhang,
Xiaohui Zhang
School of Mechatronics Engineering,
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
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Reza Malekian,
Reza Malekian
Department of Computer Science
and Media Technology,
Malmö University,
Malmö 20506, Sweden
e-mail: [email protected]
and Media Technology,
Malmö University,
Malmö 20506, Sweden
e-mail: [email protected]
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Th. Sarkodie-Gyan,
Th. Sarkodie-Gyan
College of Engineering,
University of Texas,
El Paso, TX 79968
e-mail: [email protected]
University of Texas,
500 West University Avenue
,El Paso, TX 79968
e-mail: [email protected]
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Zhixiong Li
Zhixiong Li
School of Engineering,
Ocean University of China,
Tsingdao 266100, China;
Ocean University of China,
Tsingdao 266100, China;
School of Mechanical, Materials,
Mechatronic and Biomedical Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: [email protected]
Mechatronic and Biomedical Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: [email protected]
1Corresponding author.
Search for other works by this author on:
Xinhua Liu
School of Mechatronics Engineering,
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
Xiaohui Zhang
School of Mechatronics Engineering,
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
China University of Mining and Technology,
Xuzhou 211006, China
e-mail: [email protected]
Reza Malekian
Department of Computer Science
and Media Technology,
Malmö University,
Malmö 20506, Sweden
e-mail: [email protected]
and Media Technology,
Malmö University,
Malmö 20506, Sweden
e-mail: [email protected]
Th. Sarkodie-Gyan
College of Engineering,
University of Texas,
El Paso, TX 79968
e-mail: [email protected]
University of Texas,
500 West University Avenue
,El Paso, TX 79968
e-mail: [email protected]
Zhixiong Li
School of Engineering,
Ocean University of China,
Tsingdao 266100, China;
Ocean University of China,
Tsingdao 266100, China;
School of Mechanical, Materials,
Mechatronic and Biomedical Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: [email protected]
Mechatronic and Biomedical Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: [email protected]
1Corresponding author.
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT,AND CONTROL. Manuscript received November 25, 2018; final manuscript received May 7, 2019; published online June 13, 2019. Assoc. Editor: Mohammad A. Ayoubi.
J. Dyn. Sys., Meas., Control. Oct 2019, 141(10): 101009 (13 pages)
Published Online: June 13, 2019
Article history
Received:
November 25, 2018
Revised:
May 7, 2019
Citation
Liu, X., Zhang, X., Malekian, R., Sarkodie-Gyan, T., and Li, Z. (June 13, 2019). "Improved Neural Network Control Approach for a Humanoid Arm." ASME. J. Dyn. Sys., Meas., Control. October 2019; 141(10): 101009. https://doi.org/10.1115/1.4043761
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