Research Article | OPEN ACCESS
Development of a Novel Fractional Order Sliding Mode Controller for a Gun Control System
1Qiang Gao, 2Haijun Chen, 1Guolai Yang, 1Jilin Chen and 1Yuanlong Hou
1School of Mechanical Engineering, Nanjing University of Science and
Technology, Nanjing 210014, Jiangsu, China
2Research Institute, Hubei Jiangshan Heavy Industry Co., Ltd., Xiangyang 441057, Hubei, China
Research Journal of Applied Sciences, Engineering and Technology 2013 21:4009-4015
Received: January 25, 2013 | Accepted: February 25, 2013 | Published: November 20, 2013
Abstract
To solve the nonlinearity phenomenon of a Gun Control System (GCS), a novel Fractional order Sliding Mode Control (FoSMC) strategy is proposed in this study. By inducing the fractional order calculus, a Fractional Order PID (FOPID) type sliding surface is especially designed and consequently an equivalent control discipline with fractional order dynamics is induced. The saturation function is employed as the switch function. By numerical simulation, the dynamic characteristics of the FoSMC based control system are analyzed and compared with Conventional Sliding Mode Control (CSMC) system. The results demonstrate that the FoSMC system could reach up to the equilibrium state more smoothly, which shall significantly suppress the inherent chatter effects. Besides, the FoSMC based gun control system is of high response rate, better positioning accuracy and high robustness, which is suitable for fast, smooth and accurate adjustments of the gun.
Keywords:
Chattering effects, fractional order calculus, gun control system, sliding mode control,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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