Optimal Guaranteed Cost Control Algorithm for Automatic Chain Shell Magazine |
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Authors: | HOU Bao-lin SHI Jiang-jian MA Jian-wei |
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Affiliation: | [1]School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094 Jiangsu,China [2]School of Electric Information Engineering, Henan University of Science and Technology, Luoyang 471003 Henan,China |
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Abstract: | The automatic chain shell magazine is the primary subassembly of the automatic ammunition loading system of a big-caliber howitzer. Due to the change of the shell amount in the magazine during firing, its positioning control is a kind of control problem of systems with uncertain parameters. In order to realize accurate control of shell position, an optimal guaranteed cost control algorithm based on linear matrix inequality (LMI) theory was put forward. The motion equations of the magazine were built, and the motion equations for four special load situations were linearized; according to the basic theory of the guaranteed cost control, the motion equations were written as the standard forms for linear uncertain systems; the optimal guaranteed cost control law for the position control of the magazine was obtained by use of LMI toolbox in MATLAB package. Using this control law, the controlled dynamic simulation of the shell magazine was carried out. The simulation results indicate that the control algorithm has high control precision. |
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Keywords: | mechanics self-propelled howitzer automatic ammunition loading system shell magazine uncertainty guaranteed cost control |
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