| 鸟体撞击蜂窝夹层板的动力响应分析研究 |
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| 引用本文： | 赵楠,薛璞,李玉龙. 鸟体撞击蜂窝夹层板的动力响应分析研究[J]. 兵工学报, 2010, 0(Z1) |
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| 作者姓名： | 赵楠 薛璞 李玉龙 |
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| 作者单位： | 西北工业大学航空学院; |
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| 基金项目： | 航空科学基金项目(2007ZA53003) |
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| 摘 要： | 用数值模拟方法研究了蜂窝夹层板在鸟撞速度为80 m/s和120 m/s冲击速度下的动态响应、能量吸收特性以及冲击能量耗散途径和规律。研究表明:金属蜂窝夹层板在80~120 m/s冲击速度下能够较好地吸收鸟体撞击产生的冲击能量;能量吸收的主要机制为夹芯的逐步压溃、撕裂,面板的弯曲和拉伸变形。对蜂窝夹层板能量吸收起主要作用的是上面板,例如:当鸟体以80 m/s的速度撞击蜂窝结构,上面板吸收的能量占蜂窝板吸收能量的60%.在质量不变的前提下,改进了冲击速度为120m/s的夹层板结构,改进后的模型比原模型有更好的吸能防护效果。
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| 关 键 词： | 蜂窝夹层板 能量吸收 鸟撞 |
Study on Dynamic Response of Honeycomb Sandwich Panels Subjected to Bird Impact |
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| ZHAO Nan,XUE Pu,LI Yu-long. Study on Dynamic Response of Honeycomb Sandwich Panels Subjected to Bird Impact[J]. Acta Armamentarii, 2010, 0(Z1) |
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| Authors: | ZHAO Nan XUE Pu LI Yu-long |
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| Affiliation: | ZHAO Nan,XUE Pu,LI Yu-long(School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,Shaanxi,China) |
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| Abstract: | The dynamic response,energy absorption property,dissipated path and regular of impact energy of honeycomb sandwich panels subjected to bird impact at the speed of 80 m/s and 120 m/s were studied by using numerical simulation.The results show that metallic honeycomb sandwich panels can absorb the impact energy well;the mechanisms of the energy absorption are the progressive collapse and tearing of the honeycomb cell and the bending and tensile deformation of the panel.The top face of the honeycomb panel cont... |
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| Keywords: | honeycomb sandwich panel energy absorption bird impact |
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