文章基于内部带有龙骨的半硬式平流层飞艇的结构设计,应用ANSYS有限元分析软件建立了龙骨的计算模型。对约束条件以及结构单元参数进行了分析,得到了龙骨结构在重力载荷作用下的应力和变形。计算结果符合结构设计规范的要求,可以为半硬式平流层飞艇的结构设计提供参考。%In this paper,based on a semi-rigid structure of the stratospheric airship with an internal keel design,using ANSYS finite element analysis software,a computational model of the keel was established.By dealing with constraint condition and cell parameter,results of elements＇ stress and nodal displacement of the keel were obtained under gravity load condition.The simulation result comply with the specifications of structure design well,and a reference for semi-rigid structure of the stratospheric airship was provided.
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