基于SIMA的重力式网箱阻力性能计算

近年来,深远海渔业养殖装备已引起国内外相关领域的广泛关注,其中网衣系统是渔业平台的重要组成部分。网衣属于小尺度柔性构件,在水动力作用下会产生变形,其阻力性能预报归于水弹性问题的范畴。目前,出现了1种较先进的基于非线性有限元的网衣水动力计算方法,该方法将势流理论与有限元方法相结合,用于求解网衣受力和变形。文章采用该方法计算一型重力式网箱的阻力性能,并将计算结果与试验数据进行比较,结果表明,采用该方法可以较好地预报网衣阻力性能,从而为开展大型深远海渔业平台网衣系统的阻力计算夯实基础。

Resistance performance calculation of a gravity cage based on SIMA

In recent years,the deep sea fishery aquaculture equipment has attracted widespread attention in related fields at home and abroad,among which the netting system is an important part of the fishery platform.Net is a small-scale flexible component,which will deform under the action of hydrodynamic force,and its resistance performance prediction belongs to the category of hydroelasticity problems.At present,an advanced non-linear finite element based hydrodynamic calculation method for net has been developed,which combines potential flow theory with finite element method to solve the force and deformations of nets.The method of this paper used to calculate the resistance performance of a gravity cage and compared the calculation results with the experimental data.The results showed that the adopted method could better predict the resistance performance of the net,thereby laying a solid foundation for the resistance calculation of the net system of a large deep-sea fishery platform.