水产学报2005，Vol.29Issue(2)：238-245,8.
金枪鱼延绳钓捕捞作业状态的数值模拟
A numerical model for predicting the fishing operation status of tuna longlines
摘要
Abstract
In this paper, ropes are modeled as an infinitely flexible, straight rope element, and then the whole longline is able to be regarded as an assembling of the rope elements connecting each other at their ends by a frictionless hinge. A group of nonlinear basic simultaneous equations describing the equilibrium state of longlines are deduced, based on a finite element formulation. NewtonRaphson method is employed to get the numerical solution due to the non-linearity. Further, the loading and shape iterative procedure are used to model the coupling relationship between the longline shape and hydrodynamic forces. The results suggested that this method has excellent global convergence and good accuracy for predicting the tension and shape of tuna longlines during fishing operation.关键词
有限元解析/金枪鱼/延绳钓/形状与张力Key words
finite element analysis/tuna/long line/tension and shape分类
农业科技引用本文复制引用
万荣,崔江浩,宋协法,唐衍力,赵芬芳,黄六一..金枪鱼延绳钓捕捞作业状态的数值模拟[J].水产学报,2005,29(2):238-245,8.基金项目
山东省中青年科学家奖励基金 （）
教育部留学回国人员基金 （）
高等学校博士学科点专项科研基金资助(20040423007) （20040423007）
