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建立了带中央翼的民机舱段的有限元模型,应用MSC.Dytran分析软件对民机中央翼舱段模型进行坠撞仿真,得到加速度响应和客舱舱体结构变形结果.结果表明,带中央翼舱段发生坠撞后,乘客的生存空间基本没有变化,撞击能量主要靠舱段下部的龙骨梁、框及蒙皮和中央翼壁板的破坏来吸收,地板导轨的峰值加速度比不带中央翼的典型舱段的峰值加速度要大许多.
The finite element model of the civil aircraft cabin with central wing was established and the simulation results of the crash response of the central wing model of the civil aircraft using MSC.Dytran software were obtained.The results show that the deformation of the cabin with the central wing After the collision occurred, the living space of the passenger basically remained unchanged. The impact energy was mainly absorbed by the keel beam, the frame, the skins and the damage of the central wing panel at the lower part of the cabin. The peak acceleration of the floor guideway was higher than that without the central wing The typical section of the peak acceleration to be much larger.