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无蒙皮复合材料网格结构设计与分析
提亚峰, 刘利明, 陈献平, 季宝锋, 黄诚
北京宇航系统工程研究所,北京 100076
摘要:
无蒙皮复合材料网格结构是复合材料结构中承载效率最高的结构形式,但其设计成型较其他复合材料网格结构更为困难。本文以工程应用为目的,考虑工艺成型问题,定性与定量分析相结合。按网格形式选择、典型结构工程计算、有限元优化计算、确定工程方案及试验验证五个层次分级优化。最终达到结构形式、设计计算、工艺成型等各方面综合最优的效果。生产出的无蒙皮复合材料网格结构满足工程应用要求,同时找到了工艺成型薄弱环节,为制造最优结构创造了条件。
关键词:  无蒙皮复合材料网格结构  设计与分析  结构优化  试验验证
DOI:10.12044/j.issn.1007-2330.2019.01.003
分类号:
基金项目:
Design and Analysis of Composite Materials Grid Structure Without Skin
Yafeng TI, Liming LIU, Xianping CHEN, Baofeng JI, Cheng HUANG
Beijing Institute of Aerospace Systems Engineering,Beijing 100076
Abstract:
Composite materials" grid structure without skin is the most efficient structure in composite materials grid structure.But compared with other composite materials grid structure,it is more difficult to design and shape. For the purpose of engineering application,this paper considers the problem of process forming,combining qualitative analysis with quantitative analysis.Optimized by five levels of grid form selection,typical structural engineering calculation,finite element optimization calculation, determination of engineering scheme and experimental verification.Finally comprehensive optimal effects is reached in various aspects such as structural form, design calculation,and process molding.It is verified that composite materials grid structure without skin can meet the requrements of engineering application.At the same time, the weak link of process molding is found,which created the conditions for the optimal structure.
Key words:  Composite grid structure without skin  Design and analysis  Structural optimization  Test verification