| 座舱盖静载荷数值模拟及其应用 |
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| 引用本文： | 韩海鹰,杨春信.座舱盖静载荷数值模拟及其应用[J].空气动力学学报,2008,26(1):101-105. |
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| 作者姓名： | 韩海鹰 杨春信 |
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| 作者单位： | 北京航空航天大学航空科学与工程学院,北京,100083 |
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| 摘 要： | 建立了计算飞机座舱盖静载荷的数学模型,并以某型飞机座舱盖为例模拟了不同飞行状态座舱盖内、外表面受力分布,研究了飞机座舱盖载荷随飞行状态改变而变化的趋势,最后部分给出了座舱盖静载荷在座舱盖抛放过程中所起作用的分析.结果表明:(1)在对流层内,座舱盖外表面气动力系数只是飞行马赫数的函数,与飞行高度无关;(2)座舱盖最大静载荷出现在飞行包线最大飞行高度,飞行马赫数为1的位置;(3)大部分飞行状态下,静载荷产生的绕座舱盖后铰点转动力矩都要大于活塞推力所产生力矩.
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| 关 键 词： | 座舱盖 静载荷 弹射救生 数值模拟 |
| 文章编号： | 0258-1825（2008）01-0101-05 |
| 收稿时间： | 2007-02-12 |
| 修稿时间： | 2007-06-03 |
The study of aerodynamic load's actions on canopy design and safety escape of aircraft |
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| HAN Hai-ying,YANG Chun-xin.The study of aerodynamic load's actions on canopy design and safety escape of aircraft[J].Acta Aerodynamica Sinica,2008,26(1):101-105. |
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| Authors: | HAN Hai-ying YANG Chun-xin |
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| Abstract: | The model of the canopy aerodynamics load is developed to study the trend of the canopy aerodynamics load varying with flight state.A case study of simulating the inner and outer surface stress of aircraft canopy was conducted.The validation cases show the max steady load was located at maximal height of greatest flight Mach number within flight envelope.The intensity and rigidity of canopy and locking force must satisfy the thrust force induced by max steady load.Furthermore,the effect of steady load on canopy jettison was not been ignored. |
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| Keywords: | canopy steady load ejection escape numerical simulation |
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