Variable Structure Control of a Catastrophic Course in a High-Speed Underwater Vehicle Launched out of the Water
Author(s) -
Min Xiao
Publication year - 2013
Publication title -
advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
eISSN - 1687-8140
pISSN - 1687-8132
DOI - 10.1155/2013/398707
Subject(s) - control theory (sociology) , underwater , robustness (evolution) , nonlinear system , course (navigation) , control system , engineering , controller (irrigation) , variable structure control , control engineering , computer science , sliding mode control , control (management) , aerospace engineering , physics , artificial intelligence , agronomy , biochemistry , oceanography , chemistry , electrical engineering , quantum mechanics , biology , gene , geology
A variable structure controller is designed for a high-speed underwater vehicle on a catastrophic course using a mathematical model. This sudden change at the moment when a high-speed underwater vehicle launches out of the water seriously affects the stability and the control accuracy of the high-speed underwater vehicle. The nonlinear system is linearised via input-output feedback linearisation using differential geometry theory. The attitude tracking controller is designed for a closed loop using the exponentially approaching rule of variable structure theory. The simulation results show that the control system can be applied to a catastrophic course in a high-speed underwater vehicle launched underwater and out of the water. The results also show great robustness against all admissible uncertainties for system parameter perturbation.
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