实验用模拟舱舱体材料的选择与结构设计

Material Selection and Structural Design of Simulated Space Module For Field.

目的选用玻璃钢复合材料作为舱体结构材料，实现单一金属材料所不能实现的特殊性能要求。方法依据玻璃钢与几种常规金属材料的力学性能比较，选择符合技术要求的舱体结构材料。根据载荷条件和结构件形状，将复合材料内纤维设计成适当含量并合理铺设，进行结构与材料的最佳设计。结果舱体结构达到了整体强度高、刚度大、重量轻、抗疲劳和减振等效果。材料有害气体环境检测符合医学卫生标准。结论模拟舱采用玻璃钢复合材料的结构设计是成功的，是比较科学经济的设计方案，它降低了舱体重量，提高了整舱强度和刚度。

Objective To select the suitable material for the structure of simulated space cabin to meet the special requirements which the unitary metallic material cannot do. Method The structural material was selected through comparison between the mechanical properties of fiber reinforced plastics(FRP) and a few conventional metallic materials. The content and arrangement of the fibers in the composite material were suitably designed according to load condition and structural shape of the cabin. Result High strength and high stiffness, light weight, anti fatigue and shock proof were achieved for the whole module structure. It meets the medical and hygienic standard for hazardous gases. Conclusion The structural design of fiber glass reinforced plastics composite module was proved to be successful. It reduced the weight of the module body, and increased the strength and toughness of the whole module.