| 水下爆炸中自由场压力和船体壁压的测量与分析 |
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| 引用本文： | 金辉,周学滨,周华,贾则,翟哲. 水下爆炸中自由场压力和船体壁压的测量与分析[J]. 海军工程大学学报, 2009, 21(5) |
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| 作者姓名： | 金辉 周学滨 周华 贾则 翟哲 |
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| 作者单位： | 北京理工大学,爆炸科学与技术国家重点实验室,北京,100081;91439部队,辽宁,大连,116041;91439部队,辽宁,大连,116041;北京理工大学,爆炸科学与技术国家重点实验室,北京,100081 |
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| 摘 要： | 对水下爆炸中自由场压力的水面截断效应及冲击裁荷与船体相互作用的船体壁压进行了分析,得出了自由场压力的水面截断效应及早期的船体壁压计算近似公式.测量结果表明,球形装药中心起爆后形成的冲击波一般不是一条光滑曲线,而是会有多个振荡峰;当自由场压力测点离水面较近时,测量的自由场压力会出现明显的水面截断现象;船板在水中爆炸冲击渡的作用下产生的运动和变形对水中压力场有很大影响,舰体壁压反射系数与冲击波的入射角度有关.
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| 关 键 词： | 水下爆炸 自由场压力 船体壁压 测量 |
Measurement and analysis of free-field pressure and ship hull pressure underwater explosion |
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| Abstract: | The study analyzed the water intercepting effect of free-field pressure and the ship hull pressure of the impact load with ship hull, obtained the free-field pressure equation with water intercepting effect and the ship hull wall pressure approximate equation, and contrasted it with the measuring result of underwater explosion trial. According to the measuring result, the peak value of ship hull wall pressure is 1. 4 to 1. 8 times that of free-field pressure at the position facing the spot, and the reflection factor is influenced by the incidence angle of shock wave. |
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| Keywords: | underwater explosion free-field pressure ship hull pressure measurement |
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