Computer simulation of shape and tension on fishing net and rope system

Abstract

The mesh sides and ropes in net or rope system were modeled by the straight-line elements having only resistance to traction load. Fishing nets and ropes can be regarded as the assemblies of such elements connecting together with a non-frictional hinge. A numerical procedure for analyzing the equilibrium configuration and tension of submerged fishing net and rope system, from given loads and arbitrarily initial shape of such structures, is presented. The algorithm accepts the shape-dependent hydrodynamic loads on ropes and netting. The effect of the initially assumed shape of the system on the global computation convergence is discussed and illustrated by some numerical examples.