基于PAM-CRASH的鸟撞风挡有限元分析 |
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引用本文: | 刁斌,左洪福,蔡景. 基于PAM-CRASH的鸟撞风挡有限元分析[J]. 航空计算技术, 2016, 0(5): 112-114. DOI: 10.3969/j.issn.1671-654X.2016.05.028 |
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作者姓名: | 刁斌 左洪福 蔡景 |
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作者单位: | 南京航空航天大学民航学院,江苏南京,211106 |
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摘 要: | 基于有限元分析软件PAM-Crash及其提供的SPH法,建立了鸟撞风挡的有限元模型。对鸟击风挡进行了有限元分析,仿真结果显示SPH鸟体能够很好地模拟鸟撞风挡的过程,尤其是鸟体破碎和飞溅的情况;确定了风挡可能产生塑性应变的位置;选取多个撞击位置,得出不同撞击位置产生的塑性应变云图,并进行比较分析,得出撞击位置对于风挡的影响。
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关 键 词: | 鸟撞 PAM-Crash SPH 风挡 塑性应变 撞击位置 |
Finite Element Analysis of Bird-impact Windshields Base d on PAM-CRASH |
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Abstract: | A finite element model for the bird-impact of windshields was established by the dynamic ex-plicit finite element analysis software PAM-crash and the smoothed particle hydrodynamics ( SPH) meth-od.The finite element analysis of bird-impact was simulated by the established model .The simulation in-dicate that the SPH bird can correctly show the process of impact ,especially the breaking-up and splas-hing of the bird .The position where plastic strain could develop was confirmed .The influence of the im-pacting location was obtained by analyzing the plastic strain contours of different locations of bird -im-pact . |
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Keywords: | bird-impact PAM-crash SPH windshield plastic strain impacting locations |
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