In this paper, minimum weight design of a hatch cover of box cross section is made by geometric programming. The analytic optimal solution is obtained.
本文采用几何规划方法对船舶的箱形剖面舱口盖进行最小重量设计，求得了解析的最优解。
In addition, based on the senior applied technique of ANSYS, the thesis makes the optimization design to the varying cross-section, and gains the optimal solution.
此外，利用ANSYS的高级应用技术，论文还对变截面翼板的变截面进行了优化设计，并得出了变截面的最优解。
The errors are discussed as a result of two kinds of different radius arcs replacing elliptical arc, thereby, realize optimal design for punching cross section.
阐述了两种不同半径圆弧凸模代替椭圆弧凸模所产生的误差，并比较其大小，从而实现凸模断面的优化设。
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