【作者】 金东升； 燕瑛； 刘玉佳； 何明泽； 刘波；

【机构】 北京航空航天大学航空科学与工程学院；

【摘要】 复合材料梁结构开始尝试应用在民机风挡骨架上,对其进行抗鸟撞分析显得尤为必要。本文采用MSC.Dytran发展了考虑耦合面失效的多重耦合方法,研究了鸟撞复合材料工型梁的数值模拟过程,建立了鸟体撞击复合材料工型梁的多重耦合模型,鸟体采用非线性流体材料,工型梁采用U7129/QY8911-IV铺设;通过数值模拟得到了鸟撞复合材料工型梁的动力学响应;对比分析了不同速度下撞击力随时间的变化曲线,给出了破坏的可能位置及临界破坏速度区间,满足适航标准要求。分析的结果对航空复合材料梁结构的抗鸟撞研究具有一定的参考价值。更多还原

【Abstract】 Composite work-beam tried to apply in windshield of plane,It was necessary to do research on it.In this paper multiply-coupling considering fail was developed with the help of MSC.Dytran and did research on simulation of bird impact on composite work-beam,Set up the model of bird impact on composite work-beam.The constitute of bird was nonlinear liquid.The work-beam was lay by U7129/QY8911-IV.Dynamic response of bird impact on composite work-beam through simulation is gotten.Analyze the impact force in different velocity and give critical destruct velocity.Analytic result satisfies the requirement of navigability.Analytic result could offer reference to the research of bird impact on aerial composite work-beam.更多还原