Modeling and simulation of the trawl in fishing simulator

The aim of the present study is to develop a numerical calculation method to accomplish dynamic simulation of the fishing nets in fishing simulator. Fishing nets were modeled as a group of lumped mass points interconnected with springs that have no mass under the uniform flow motion. Nonlinear dynamic equations of fishing nets were solved with the precise integration method. The position and velocity can be obtained by solving the net model. The comparison of the results of this study against associated experiment revealed the numerical method of nets model is reliable, while the real-time of simulation was ensured. This study shows that our method is valid for the simulation of fishing nets.