摘要
采用CAD技术应用于船舶结构设计中遇到不规则弧形造型影响,导致船舶结构稳定性较差。为了解决该问题,提出一种通过控制顶点网格来控制弧形表面的方法,将该方法应用在船舶仿生结构优化中。使用仿生思维分析船舶线造型设计目标,确定生物结构形态。将计算量转化为无因次形式,确定前体漂心纵向位置和后体漂心纵向位置,由此得到水线面半宽。沿着船体纵向各横剖面围成的弧形,构建横向剖面方程,得到新船线造型值。以某船为例进行试验验证分析,由试验结果可知,该方法光顺测量值能够达到标准为0.1%的测量值,且船舶首、尾、中的左右吃水一致,说明船舶仿生结构具有一定稳定性。
The use of CAD technology in the design of ship structures encounters the effect of irregular arc shapes,resulting in poor stability of ship structures.In order to solve this problem,a method of controlling the arc surface by controlling the vertex grid is proposed.This method is applied to the bionic structure optimization of ships.Use bionic thinking to analyze the design goals of ship line modeling and determine the biological structure.The calculation is converted into a dimensionless form to determine the longitudinal position of the front body drift center and the longitudinal position of the rear body drift center,thereby obtaining the half width of the waterline surface.Along the arcs formed by the longitudinal cross sections of the hull,the cross section equations are constructed to obtain the new ship line modeling values.Taking a boat as an example,the test verification analysis is carried out.From the test results,it can be seen that the smoothness measurement value of this method can reach the standard measurement value of 0.1%,and the left and right draughts of the ship are the same in the bow,stern and middle,indicating that the ship bionic structure Certain stability.
作者
梁娜
LIANG Na(Wuhan Institute of Shipbuilding Technology,Wuhan 430050,China)
出处
《舰船科学技术》
北大核心
2020年第18期16-18,共3页
Ship Science and Technology
基金
湖北省教育厅科技处(科研计划项目)(B2017509)
湖北省职教学会课题(ZJGB2019059)
关键词
弧形表面
船舶
仿生结构
线造型
curved surface
ship
bionic structure
line modeling
