拖网渔船推进装置的分析比较

A Comparision of Propulsion Installations Applied to Trawlers

本文主要根据实船试验结果,对8101、8154、8156型拖网渔船采用的三种不同形式的推进装置的推进性能进行了分析比较。综合拖网和自由航行两种工况,双速桨拖速、拖力的增加所带来的好处大大超过其航速降低的损失。另外,双速桨的采用,为实现渔船主机轴带发电机和增压柴油机在渔船上的推广应用提供了有利条件。

Service performance analysis of three types of trawlers each installed with different machinery arrangements is made in this paper. Comprehensive considerations on both the towing and the free-running conditions with a view to compare the overall economy shows that the two-speed propeller installation proved more economical, the gains resulted from an increase in towing force and towing speed exceeded the losses due to lower free-running speed In addition, the installation of two-speed propeller system enables theadoption of supercharged diesel and main shaft generator more realistic.