面向最终用户的船体静,动力分析软件

介绍了一种面向最终用户的船体静、动力分析软件——ＳＤＡＳＨｆｏｒＷｉｎｄｏｗｓ．该软件基于船体阶梯形薄壁有限元模型，采用薄壁杆件理论计算船体剖面的弯曲和扭转特性，并计及横向抗扭箱、横向甲板条等横向抗扭结构对船体刚度产生的影响．软件能根据各主要船级社的规范计算出船体弯扭合成应力，还可进行船体静挠度和振动模态分析计算．

End User Oriented Software for Static and Dynamic Analysis of Ship Hulls

An end user oriented computer software for static and dynamic analysis of ship hulls, SDASH, is introduced, which is based on a one dimensional finite element model of stepped thin walled ship hull girder. Flexural and torsional properties of ship hull cross sections are calculated according to the theory of thin walled beams. The contribution of transverse deck strips and torsional boxes to the stiffness of the ship hull can be taken into consideration in the calculation. The resultant stress can be worked out by the software according to rules of the world leading classification societies. In addition to the torsional strength calculation, the software can also be used to calculate the vertical bending deflection and to determine the natural frequencies and vibration model shapes of the ship hull. To make SDASH a powerful and easy to use tool for the end user, or ship designer, considerations are made to reduce the effort in establishing the analytical model of the ship hull.