【摘要】 本文提出一种可供实用的按兴波阻力理论与母型船变换相结合的计算机辅助船舶型线设计方法,其横剖面面积曲线按最小波阻理论求得,而肋骨型线则从设计者所选定的优良母型船变换获取。所采用的波阻计算公式取自日本堤孝行的论文,而对其评价函数作了改进,主要是加入了形状要求。形状控制采用加权约束(或称惩罚函数)方法。通过简单选取加权约束项及其权值,可灵活地得到符合设计者意图的常规的或带球首的优化横剖面面积曲线。 这一方法已编成计算机程序,并对多艘实船进行了计算和比较,效果良好。在设计者给出设计船主尺度及要素的情况下,程序能顺利完成型线图设计工作,并对若干要素和设计方案进行波阻分析,提出改进方案以供参考。程序适于F_n=0.256～0.319,C_p≤0.65船舶。更多还原

【Abstract】 This paper presents a practical method for CAD of hull-lines by the wave resistance theory with the variation of parent forms. The sectional area curve of the designed ship is determined by the minimum wave resistance theory, and the framelines are obtained from the variation of the fine parent form selected by the designer. The estimation formula of wave resistance developed by T. Tsutsumi is applied here, but our paper improves his objective function by introducing a set of form restriction called penalty functions. By means of giving their weighted values, we are able to obtain the optimum sectional area curves with or without the bulbs flexibly according to the opinions of the designer.The programs of computer based on this method are developed, and the calculated results for some ships are verified to be successful. The programs arc applicable for the ships where their Fn= 0.256-0.319and CD = 0.65.更多还原