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。
2
Based on the analytic formula of groundwater inflow into tunnel, this paper puts forward a method to choose the minimal rock cover of sub-sea tunnel.