| 航空头盔典型件冲击保护性能实验研究 |
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| 引用本文： | 陈作荣.航空头盔典型件冲击保护性能实验研究[J].北京航空航天大学学报,1998,24(2):200-202. |
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| 作者姓名： | 陈作荣 |
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| 作者单位： | 北京航空航天大学 飞行器设计与应用力学系 |
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| 摘 要： | 利用分离式Hopkinson压杆研究了几种航空头盔典型件的冲击保护性能,测量了各构件的能量吸收率.讨论了冲击过程和能量吸收过程,进一步分析了头盔外壳材料力学性能及泡沫衬垫密度对头盔能量吸收率的影响规律.实验表明,在一定范围内外壳力学性能和泡沫衬垫密度对于能量吸收起着重要作用.为设计新一代航空头盔提供了可靠的实验依据.
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| 关 键 词： | 冲击(力学) 霍布金生杆 颅骨 航空头盔 能量吸收率 |
| 收稿时间： | 1996-09-02 |
| 修稿时间： | : |
Experimental Studies of Impact Protection Performance of Aircrew Helmet Typical Component |
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| Chen Zuorong,Yang Yiqian,Ma Hezhong.Experimental Studies of Impact Protection Performance of Aircrew Helmet Typical Component[J].Journal of Beijing University of Aeronautics and Astronautics,1998,24(2):200-202. |
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| Authors: | Chen Zuorong Yang Yiqian Ma Hezhong |
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| Institution: | Beijing University of Aeronautics and Astronautics,,Dept. of Flight Vihicle Design and Applied Mechanics |
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| Abstract: | The impact protections provided by several aircrew helmet components are investigated in using the SHPB apparatus.The energy absorption rates of these components are examined.The impact process and energy absorption process are discussed.Further,the way in which the material mechanical properties of helmet shell and the density of helmet foam liner affecting the energy absorption capacity of helmet is analyzed,showing that the mechanical properties of shell and the density of foam liner play an important role in the energy absorption process to a certain extent.The experimental method used by this paper is original.This work provides reliable experimental basis for designing a new generation aircrew helmet. |
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| Keywords: | shocks(mechanics) Hopkinson bars skull aircrew helmet energy absorption rate |
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