Trawl Grid Structure Design and Analysis Using the Finite Element Method

The structure of fishnet knots has been simplified in previous studies to facilitate the construction numerical equations structure. This leads errors dynamic analysis trawl mesh with water flow. In this study, finite element method was used analyze interaction solid object a explicit environment. At same time, design variables were optimized through impact assessment and displacement grid cells. results show that polyamide (PA) material, 0.4 mm cross-section, 25 size are optimal choices. When speed body increased, collision values tended increase gradually along quadratic curve. Confirmation tests performed on tensile tester machine showed good load-carrying capacity up 1280 MPa for structures using PA material. characteristic curve stress is shown higher-order