水流和波浪作用下平面网片张力和形状计算的研究

Study on Tensions and Configuration Calculation of Plane Net under Effects of Sea Currents and Waves

网片是制作渔具的基本构件,探索水流和波浪作用下网片的张力和形状是渔具研究中的重要内容。根据网片在受到水流和波浪作用下的受力情况,由力学基本原理出发建立平面网片张力和形状的微分方程组。再由其通常的使用情况提出初边值后对方程进行数值解,从而探索在不同流速、波长以及网片结构中不同d/a、缩结系数和网片下端重量等因素下平面网片的张力和形状的关系。

Fishing nets are fundamental components in fishing gears. Researching the nets＇ tension and configuration at the effect of currents and waves is important thing in studying the fishing nets. This paper is based on the forces acting on the fishing nets under the effects of sea currents and waves, and establishes equations of tension and configuration calculation of plane nets according to the basic mechanics principle, and finds numerical solutions after determining the initial boundary value under the general circumstances, to explore the relation between tension and configuration under different currents, wave length and the different d/a, hanging coefficient and the weight of the end of plane nets.