Dynamic Behaviour of a Complete Trawl Gear (Manoeuvrability and Security)

摘要

A trawl gear is a complex system consisting of a trawler (sometimes two), warps (cables linking the ship and the fishing gear), nets and devices (mainly trawl doors and floats), which ensure the vertical and horizontal opening of the net. Each of these elements represents in itself a research theme, which we have already dealt separately. In this work, we put together the different methods we have proposed to study the dynamics of a complete trawl gear where all the constituent parts interact. This study is a fundamental action that aims at improving fishing conditions and also safety conditions at sea.rnThus we are able to study the dynamics of the system in various situations: gyration, forced trajectory, effects of the sea state on the trawl, obstruction, etc...