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首先,对运载火箭复合材料截锥形格栅适配器的质量目标函数与其几何构型及尺寸间的关系进行了研究。在此基础上,给出了舱壁厚度、斜向肋与环向肋宽度、斜向肋与环向肋数量及斜向肋倾斜角度等6个基本设计变量。在斜向肋数量给定的前提下,通过探寻无环向肋适配器优化质量随斜向肋倾斜角度的变化规律,并进一步将该变化规律与斜向肋间的交叉点数相结合,总结出一种简捷、有效的格栅适配器的优化设计方法。在同现有的某型号运载火箭复合材料薄壁结构适配器的对比中发现,在相同设计要求下,复合材料格栅适配器质量降低约30%,证实了该结构的高效及实用。
First of all, the relationship between the mass objective function of the truncated conical grid adapter and the geometry configuration and size of the rocket composite was studied. On this basis, six basic design variables are given, such as bulkhead thickness, widths of inclined ribs and circumferential ribs, number of inclined ribs and circumferential ribs, and inclination angles of inclined ribs. With the given number of slant ribs, the variation regularity of the slant angle of slant ribs based on the optimization of the quality of the acyclic rib adapters is explored, and then the change rule is combined with the cross points of slant ribs to conclude that A Simple and Effective Method for Optimizing Design of Grid Adapter. In comparison with the existing model carrier rocket composite thin-wall structure adapter, it was found that the quality of the composite grid adapter was reduced by about 30% under the same design requirements, confirming the high efficiency and practicality of the structure.