敷设抗冲覆盖层的双层圆柱壳抗冲性能研究  

Dynamic performance of double-walled cylindrical shell structure with anti-shock coating

作　　者：师子锋 伍世杰 殷彩玉 刘敬喜[1,2] 赵应龙[4,5] SHI Zifeng;WU Shijie;YIN Caiyu;LIU Jingxi;ZHAO Yinglong(School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Hubei Key Laboratory of Naval Architecture&Ocean Engineering Hydrodynamics,Huazhong University of Science and Technology,Wuhan 430074,China;Yichang Testing Technology Research Institute,Yichang 443003,China;Institute of Noise and Vibration,Naval University of Engineering,Wuhan 430033,China;National Key Laboratory on Ship Vibration and Noise,Wuhan 430033,China)

机构地区：[1]华中科技大学船舶与海洋工程学院,湖北武汉430074 [2]华中科技大学船舶和海洋水动力湖北省重点实验室,湖北武汉430074 [3]宜昌测试技术研究所,湖北宜昌443003 [4]海军工程大学振动与噪声研究所,湖北武汉430033 [5]船舶振动噪声重点实验室,湖北武汉430033

出　　处：《中国舰船研究》2024年第S01期62-73,共12页Chinese Journal of Ship Research

基　　金：船舶振动噪声重点实验室基金资助项目(JCKY2021207CI04);湖北省基金面上资助项目(2022CFB020);国家自然科学基金资助项目(12372358,11802180,52071150);基础加强计划重点基础研究资助项目(2020-JCJQ-ZD-222)。

摘　　要：[目的]旨在研究双壳体潜艇非接触水下爆炸下的抗冲性能,提出在壳体表面敷设抗冲覆盖层的防护方法,以内壳冲击响应为评价指标,研究不同敷设方式下的抗冲击效能。[方法]采用声−固耦合法,建立外流场−外壳体−舷间水−内壳体的非线性流−固耦合冲击动力学模型,对内外壳外表面均敷设覆盖层(工况2)、仅内壳外表面敷设覆盖层(工况3)和仅外壳外表面敷设覆盖层(工况4)情况下的壳体冲击响应及覆盖层抗冲击效能进行对比分析。[结果]结果表明,对于工况2,内壳体迎爆面不同测点处的加速度、速度和位移峰值平均降低量分别达94.1%,81.2%和23.3%,周向和纵向微应变峰值平均降低量达67.7%和88.3%;对于工况3,相应值分别为60.4%,45.4%和−2.1%,以及34.6%和68.0%;对于工况4,相应值分别达86.7%,75.1%和20.3%,以及68.6%和77.8%。[结论]针对双壳体潜艇,在壳体上敷设抗冲覆盖层可有效降低内壳冲击响应,尤其是加速度和速度响应。在外壳体外表面上敷设覆盖层时的抗冲击效果更好。[Objectives]In order to enhance the anti-shock performance of a double-hull submarine against non-contact underwater explosions,a method of plastering anti-shock coating on the surface of double-hull ships is proposed,and the shock response of the inner hull is used to evaluate the shock mitigation effects of different anti-shock coating approaches.[Methods]By employing the acoustic-solid coupling method,a nonlinear fluid-structure coupling dynamic model is established for the external flow field,outer hull,gapped water and inner hull.Three approaches to laying anti-shock coating on the hull are compared,namely covering it on both the inner and outer hulls(Case 2),on the inner hull(Case 3)and on the outer hull(Case 4).[Results]As the results show,in Case 2,the average reduction rates in the peak values of acceleration,velocity and displacement are 94.1%,81.2%and 23.3%respectively,while the average reduction rates in the peak values of circumferential and axial micro-strain are 67.7%and 88.3%respectively;in Case 3,the three values are 60.4%,45.4%and−2.1%,and the two values are 34.6%and 68.0%;and in Case 4,the three values are 86.7%,75.1%and 20.3%,and the two values are 68.6%and 77.8%.[Conclusions]Covering the hull with anti-shock coating can effectively enhance the anti-shock performance of double-hull ships,especially in terms of the acceleration and velocity results,and coating the outer hull plays a primary protective role.

关 键 词：双壳体潜艇 水下爆炸 抗冲覆盖层 

分 类 号：U661.43[交通运输工程—船舶及航道工程]