某飞行器复合材料薄壁加筋结构舱段稳定性分析

摘要

为了研究复合材料薄壁加筋结构舱段的在特定载荷下的稳定性，采用有限元方法仿真计算了在舱段薄壁厚度不变时，筋条截面积在200mm2、300mm2和400mm2下，舱段稳定性随着筋条高度变化情况，得到了临界载荷，计算结果可作为工程设计参考依据。%The finite element method has been used to study the stability of thin‐walled reinforced composite material cabin under a particular cabin load .The change behavior of cabin stability has been find when the rib's height has been changed as it's was 200mm2 ,300mm2 and 400mm2 ,though the thickness of the thin wall was constant .the critical load has been figured out ,the results could be used as reference for engineering design .