| SPH和FEM耦合方法分析机翼前缘鸟撞的响应问题 |
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| 引用本文： | 张洪涛,赵美英,任磊,米保卫.SPH和FEM耦合方法分析机翼前缘鸟撞的响应问题[J].科学技术与工程,2009,9(7). |
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| 作者姓名： | 张洪涛 赵美英 任磊 米保卫 |
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| 作者单位： | 1. 西北工业大学,航空学院,西安,710072
2. ESI-ATE科技术有限公司,北京,100002 |
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| 基金项目： | 国防科工委民用专项基金 |
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| 摘 要： | 鸟体的强度远比铝合金小,鸟体在撞击过程中表现强烈的流体流动性.介绍利用PAM-CRASH软件,采用SPH(Smooth Particle Hydrodynamics)和FEM耦合技术分析鸟撞机翼前缘问题.通过将鸟体离散成光滑粒子(SPH)单元,并且采用铆钉连接单元简化蒙皮和肋板的铆钉连接,准确分析了鸟撞动态特性.SPH方法在鸟撞仿真中,克服了网格稳定性问题,并能有效分析鸟体的飞散现象.
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| 关 键 词： | 鸟撞 机翼前缘 有限元 铆钉 |
Bird Impact on Aircraft Leading Edge Simulation with SPH and FEM Coupling Method |
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| ZHANG Hong-tao,ZHAO Mei-ying,REN Lei,MI Bao-wei.Bird Impact on Aircraft Leading Edge Simulation with SPH and FEM Coupling Method[J].Science Technology and Engineering,2009,9(7). |
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| Authors: | ZHANG Hong-tao ZHAO Mei-ying REN Lei MI Bao-wei |
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| Abstract: | The body of bird is much weaker than aluminium alloy,so it performs more liquid characteristic when it impacts on aluminium alloy leading edge.A method is introduced to simulating the bird impact on aircraft leading edge with SPH and FEM coupling method by PAM-CRASH.By using SPH element to simulate the bird and PLINK element to simulate the rivet between skin and ribs,from the analysis a perfect result can be get.The SPH bird model increases the stability of the calculation and correctly simulates the splas... |
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| Keywords: | PAM-CRASH SPH |
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