Study of the interconnections of technical features of commercial fishing vessel complexes with the characteristics of trawlers

Abstract

Trawl fishing vessels for working with fishing gear have fishing schemes, which include commercial winches and cable-net drums. When designing the hulls of fishing vessels, appropriate techniques are used. In turn, there are no methods to develop fishing schemes and complexes with various types of fishing, which leads to a low level of mechanization of operations and, as a result, to significant production costs. For this reason, schemes and complexes in industrial fishing are often designed with overestimated capacities and mass-dimensional characteristics. This circumstance ultimately affects profitability of trawlers and fish products cost. In most cases, development of fishing complexes for trawlers is carried out according to the prototype, taking into account their size. In accordance with the foregoing, this work is devoted to establishing links between the energy characteristics of fishing equipment and vessel parameters, in order to obtain initial data for the development of methods for designing complexes and schemes. To solve this problem, a review and analysis of fishing schemes for fishing trawlers with main engine powers from 44 kW to 5300 kW has been carried out. The main factor of the analysis was comparison of the given power parameters of fishing winches and power characteristics of fishing vessels. Based on the results of the study, the dependences of the power characteristics on the power of the power plants of the trawlers have been established analytically. Regressions are presented in the form of graphs and written by mathematical formulas, for which their adequacy has been checked. The results of the study will find application in the development of fishing complexes for fishing vessels.