某异质层合侧风挡的鸟撞数值仿真分析

Numerical simulation analysis of bird impact on a heterogeneous laminated side windshield

本文研究一种无机玻璃和有机玻璃异质层合侧风挡结构的抗鸟撞性能。利用SPH方法实施航向和垂向两种方向的鸟撞数值仿真分析,获得无机玻璃层和有机玻璃层的动响应。航向鸟撞下整个结构未发生损伤。垂向鸟撞下无机玻璃层局部损坏、有机玻璃层产生较小塑性变形,但不危及飞行安全。结果表明,这种异质层合风挡结构具有较好的抗鸟撞性能。

The bird impact resistance of a heterogeneous laminated side windshield structure of inorganic and organic glass was studied in this paper.The numerical simulation analysis of bird impact in heading and vertical directions was carried out by SPH method,and the dynamic responses of inorganic and organic glass layer were obtained.The whole structure was not damaged under heading impact.The inorganic glass layer was partially damaged and small plastic deformation existed in the organic layer under vertical impact,but it didn't endanger flight safety.The results showed that the heterogeneous lami-nated windshield structure behaved good anti bird impact performance.