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从总体布局、材料选取、结构设计及载荷分析等方面详细阐述了全复合材料轻型飞艇吊舱的研制。飞艇吊舱是体积较大的外挂结构,从外挂受力特点出发,充分运用了复合材料夹层结构高刚度/质量比的特性,合理地进行结构设计布局,很好地解决了大尺度复合材料结构的刚度问题。通过有限元分析和静力试验对舱体结构进行静强度、刚度验证。计算及试验结果表明全复合材料轻型飞艇吊舱满足强度、刚度设计要求,结构质量比预定质量节省10%,从而可以增加有效任务载荷或减少浮囊体积。
From the overall layout, material selection, structural design and load analysis and other aspects elaborated the development of all-composite light airship pods. The airship pod is a large-scale plug-in structure. Based on the characteristics of plug-in force, the high-stiffness / mass ratio of composite sandwich structure is fully used to carry out the structure design and layout reasonably, which can well solve the problem of large-scale composite structure Stiffness problem. Through the finite element analysis and static test, the static strength and stiffness of the cabin structure are verified. The calculation and test results show that the all-composite light airship pod meets the design requirements of strength and stiffness, and the quality of the structure can be saved by 10% compared with the predetermined quality so as to increase the effective task load or reduce the volume of the floating balloon.