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This paper describes a simplified mathematical model of a mid-water trawl system developed to help and understand the dynamic behavior of trawl, and to design the depth control system of the mid-water trawl operation. The equations of the motion for the vertically moved trawl system were obtained using Lagrange's equation with respect to the variables of the displacement of the trawler, the length...
This paper describes the model of a simplified trawl system and the design of a control system that uses a fuzzy algorithm in controlling the depth of a midwater trawl net. The practicality of the control system was examined using computer simulation.The control rules of fuzzy control systems are sets of linguistic expressions that are used by an experienced performer in real operations while the...
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