水下接触爆炸下舷侧防雷舱吸能结构形式试验研究  

Experimental Study on the Energy-absorbing Structure of Broadside Defense Cabin Subjected to Underwater Contact Explosion

作　　者：柴崧淋 侯海量[1] 金键 李典[1] 李永清[1] CHAI Songlin;HOU Hailiang;JIN Jian;LI Dian;LI Yongqing(College of Naval Architecture and Ocean Engineering,Naval University of Engineering,Wuhan 430033,Hubei,China;China Aerodynamics Research and Development Center,Mianyang 621000,Sichuan,China)

机构地区：[1]海军工程大学舰船与海洋学院,湖北武汉430033 [2]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《兵工学报》2022年第6期1395-1406,共12页Acta Armamentarii

基　　金：国家自然科学基金项目(51979277)。

摘　　要：为探究夹芯结构在水下舷侧防雷舱中应用的可行性,比较了不同结构形式防雷舱的变形吸能特性。设计了4种不同吸能结构形式的防雷舱,并分别开展了300 g TNT水下接触爆炸毁伤试验。通过对比分析防雷舱内部舱壁板的变形破坏情况发现:以液舱内壁柔性大变形进行吸能的结构形式,边界必须有强支撑结构,支撑不足时难以发挥薄膜拉伸吸能效果;利用液舱内壁-弧形板-吸能舱内壁整体变形吸能的吸能舱夹芯结构形式,弧形板在为液舱内壁提供有力支撑的同时还可随液舱内壁共同变形吸能,有效提高防雷舱的防护能力;进一步在弧形板间添加泡沫铝,未能取得更好的防护效果;弧形板前移至液舱的夹芯结构形式,弧形板的设置导致水中能量未能充分耗散至整个液舱,能量的汇聚致使内部舱室产生了更严重的破坏。The deformation and energy-absorbing characteristics of broadside defense cabins with different structures are compared to study the feasibility of the application of sandwich structure in the broadside defense cabin.Four structural forms of broadside defense cabin cabins were designed,and 300 g TNT underwater contact explosion damage tests were carried out,respectively.Through comparative analysis of the deformation and destruction of the inner bulkheads of four broadside defense cabins,it is concluded that the boundary must have a strong support structure for a structure that uses the large flexible deformation of inner wall of the tank to absorb energy,and it is difficult to exert the tensile energy absorption effect of film when the support is insufficient.For the sandwich structure of the energy-absorbing tank that utilizes the integral deformation and energy absorption of inner wall of tank,the arc-shaped plate and inner wall of energy-absorbing tank,the arc-shaped plate provides strong support for the inner wall of tank and can deform and absorb energy together with the inner wall of tank,thus ffectively improving the protection ability of broadside defense cabin.a foam aluminum layer is added between the arc-shaped plates,failing to achieve a better protection effect.The arc-shaped plate is moved forward to the sandwich structure of the liquid tank,and the setting of arc-shaped plate causes the energy in the water to be not fully dissipated to the entire tank,and the accumulation of energy causes more serious damage to the internal tank.

关 键 词：舷侧防雷舱 吸能结构 水下接触爆炸 夹芯结构 防护性能 

分 类 号：O383[理学—流体力学]