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首页> 外文期刊>Shock and vibration >Numerical Analyses of a Shield Building Subjected to a Large Commercial Aircraft Impact
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Numerical Analyses of a Shield Building Subjected to a Large Commercial Aircraft Impact

机译：大型商用飞机撞击下的盾构建筑物的数值分析

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The missile-target interaction method is used to perform simulations of the impact of a commercial B767 aircraft on a shield building made of steel-concrete-steel sandwich panels to study impact damage characteristics. Refined finite element models of a shield building and two large commercial B767 aircraft are developed. The aircraft impact force is given and assessed with the Riera function to verify the B767 aircraft model, and a simulation analysis of tests is performed to verify the concrete model. The peak impact forces of the fuselage, engine, wing, and entire aircraft are approximately linearly proportional to the square of each impact velocity. The shield building subjected to the aircraft impact exhibits no perforation, and the damage range of the shield building expands with increasing impact velocity. The influences of impact velocity, aircraft mass, impact angle, and tie bar diameter on the deformation of the shield building are significant. The thickness of the steel plate plays an important part in the deformation of the shield building, whereas the compressive strength of concrete and the water in circular tank have only a slight effect on the deformation of the shield building.
机译：导弹与目标的相互作用方法用于对商用B767飞机对由钢-混凝土-钢夹芯板制成的盾构建筑的撞击进行仿真，以研究撞击破坏特性。开发了盾构和两架大型商用B767飞机的改进的有限元模型。通过Riera函数给出并评估飞机的冲击力，以验证B767飞机模型，并进行测试仿真分析以验证具体模型。机身，发动机，机翼和整个飞机的最大冲击力大约与每个冲击速度的平方成线性比例关系。受到飞机撞击的盾构建筑物没有穿孔，并且盾构建筑物的损坏范围随着冲击速度的增加而扩大。撞击速度，飞机质量，撞击角度和拉杆直径对盾构变形的影响很大。钢板的厚度在屏蔽建筑的变形中起着重要的作用，而混凝土和圆形罐中的水的抗压强度对屏蔽建筑的变形影响很小。

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