通过对直径3m、长5m的钢制压力罐内水域上方空气加压，进行0.5MPa水域环境下的光电倍增管内爆试验。在压力罐内壁粘贴声阻抗较小的橡胶层，能有效减小钢制壁面反射冲击波对内爆试验结果的影响，通过压力罐视窗提供的大功率灯光，为高速摄像机提供光源。在压力罐中进行0.5MPa水域环境下光电倍增管内爆试验得到了和理论研究一致的冲击波压力时域曲线，拍摄到清晰的光电倍增管内爆过程，本文研究内容为水下中空结构物内爆提供了一种较好的试验方法。
Abstract
By compressing air above water in a pressure tank, a photo multiplies tube underwater implosion test was conducted at 0.5 MPa hydrostatic pressure. The pressure tank was made of steel with its diameter of 3 m and its length of 5 m, and its inner wall was stuck with a layer of low acoustic impedance rubber material to reduce effectively the influences of the reflection shock wave at the inner wall surface on the implosion test results. By providing high-power lighting through the PMMA window of the pressure tank, a high-speed camera recorded the implosion test process clearly. It was shown that the pressure curve in time domain of shock wave in the underwater implosion test agrees well with that of theoretical study. The study results provided a good implosion test method for underwater hollow structures.
Key words
pressure tank /
implosion /
test method /
shock wave /
high-speed camera
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] Jiajie Ling, Mary Bishai. Implosion chain reaction mitigation in underwater assemblies of photomultiplier tubes[J].Nuclear Instruments and Methods in Physics Research, 2013, A(729):491-199.
[2] Milind Diwan, Jeffrey Dolph. Underwater implosions of large format photo-multiplier tubes[J].Nuclear Instruments and Methods in Physics Research, 2012, A(670 ):61-67.
[3] LA Gish, T Wierzbicki. Estimation of the underwater implosion pulse from cylindrical metal shells[J].International Journal of Impact Engineering, 2015, March(77):166-175.
[4] S Turner.Underwater implosion of glass sphere[J].Journal of the Acoustical Society of America, 1999, A(105):1657-1671.
[5] Michael Pinto, Sachin Gupta. Study of implosion of carbon/epoxy composite hollow cylinders using 3-D Digital Image Correlation[J].Composite Structures, 2015, A(119):272-286.
[6] R Kent Tacey. Implosion Research[J]. SeaFrame, 2008, 4(112):263-269.
[7] PE Harben, C Boro.Use of Imploding Spheres: An Alternative to Explosives As Acoustic Sources at Mid-Latitude SOFAR Channel Depths[J].UCRL, 2000, March(139):125-136.
[8] 王礼利.应力波基础[M].北京,工业出版社,2005:45-47. Wang Lili. Foundation of Stress wave[M].Beijing,Industry Press,2005:45-47.
[9] 孙海祥.理想气体状态方程综述[J].冀东学刊,1995, 6(5):15-16.
Sun Haixiang. Overview of Ideal Gas State Equation[J].Journal of Jidong,1995, 6(5):15-16.
[10] 杜志鹏.球型容器内爆理论模型[J].兵工学报, 2014, 10(13):176-181.
Du Zhipeng. An implosion theory for the spherical hollow vessel in the incompressible fluid[J]. ActaArmamentarii,2014, 10(13):176-181.
[11] 李冀祺.爆炸力学[M].科学出社.1992;340-345.
Li Jiqi. Explosion Mechanics[M].Science Publisher,1992,
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
PDF(1083 KB)
