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Acta Armamentarii ›› 2017, Vol. 38 ›› Issue (10): 1891-1898.doi: 10.3969/j.issn.1000-1093.2017.10.003

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Adaptive Fuzzy Sliding Mode Control for the Artillery Modular Charge Transport Servo System

YUE Cai-cheng1, QIAN Lin-fang1, KONG Jian-shou2, LI Ying3   

  1. (1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;2.School of Automation, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;3.Northwest Institute of Mechanical Engineering, Xianyang 712000, Shaanxi, China)
  • Received:2017-03-20 Revised:2017-03-20 Online:2017-11-22

Abstract: An adaptive fuzzy sliding mode controller (AFSMC) with an integral sliding mode function is proposed for the control of the artillery modular charge transport servo system which has time-varying parameters and chattering problem. The time-varying system parameters are estimated by using adaptive method. The influence of model uncertainty on the control system is reduced. Then, the traditional switching function is replaced by an improved saturation function. This ensures that the process of switching is more continuous and smooth. The coefficient of switching is tuned online by the fuzzy adaptive scheme. In this way, the robustness of system is enhanced, and the chattering of system is restrained. Experimental results show the system has a good position tracking performance under empty-load, half-load and full-load, which can meet the performance index. The proposed AFSMC scheme can overcome the influence of variable loads on the control precision of the system. Key

Key words: ordnancescienceandtechnology, artillerymodularchargetransportservosystem, chattering, adaptivefuzzyslidingmodecontroll, positiontracking

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