气肋式充气帐篷结构承载能力仿真分析

Simulation analysis of structural bearing capacity of gas-ribbed inflatable tent

为分析不同充气内压对气肋式充气帐篷承载能力的影响,建立包含气肋拱、篷布、防风绳的大跨度拱形帐篷结构有限元模型,考虑气肋内气体和膜面的流-固耦合作用以及防风绳受力特性,在80 mm雪载荷和8级风载荷组合作用下求解帐篷结构的变形和应力结果,分析气肋式充气帐篷结构在风载荷和雪载荷组合作用下的承载性能,结果表明帐篷合适的充气内压为300 kPa。

To analyze the influence of different inflation internal pressures on the bearing capacity of gas-ribbed inflatable tents,a finite element model of a large-span arched tent structure is built,including gas-ribbed arches,tarpaulins,and windproof ropes.The fluid-structure coupling effect of the gas and membrane surface inside the gas ribs,as well as the force characteristics of the windproof ropes,are considered.The deformation and stress of the tent structure are calculated under the combined action of 80 mm snow load and 8-level wind load.The bearing performance of the gas-ribbed inflatable tent structure under the combined action of wind load and snow load is analyzed,and the results show that the appropriate inflation internal pressure of the tent is 300 kPa.