| 舰艇抗冲瓦整体冲击隔离新概念及其机理研究 |
| |
| 引用本文： | 汪玉,华宏星,谌勇,杜俭业,杜志鹏. 舰艇抗冲瓦整体冲击隔离新概念及其机理研究[J]. 科技导报(北京), 2009, 27(3) |
| |
| 作者姓名： | 汪玉 华宏星 谌勇 杜俭业 杜志鹏 |
| |
| 作者单位： | 海军装备研究院,北京,100161;上海交通大学振动、冲击、噪声国家重点实验室,上海,200030 |
| |
| 摘 要： | 基于声阻抗失配原理,提出了舰艇抗冲瓦对水下爆炸冲击的整体隔离新概念.采用波动理论和Taylor平板模型.以冲击波在水、覆盖层、空气层、船体钢中的传播过程为研究对象,建立了实心敷设层结构(消声瓦的简化模型)和带空腔敷设层结构(抗冲瓦)的流固耦合模型.利用Abaqus软件建立舰艇抗冲瓦三维冲击响应模型.算例结果表明,抗冲瓦能够很好地隔离水下爆炸冲击波.大大降低船体结构材料应力和加速度冲击响应峰值,并能在广泛的频域内显著降低舰艇冲击响应.
|
| 关 键 词： | 抗冲瓦 冲击隔离 阻抗失配 水下爆炸 |
New Concept of Ship Anti-Shock Layer in Underwater Explosion Wave Isolation |
| |
| WANG Yu,HUA Hongxing,CHEN Yong,DU Jianye,DU Zhipeng. Naval Academy of Armament,Beijing ,China . State Key Laboratory of Vibration,Shock , Noise,Shanghai Jiao Tong University,Shanghai ,China. New Concept of Ship Anti-Shock Layer in Underwater Explosion Wave Isolation[J]. Science & Technology Review, 2009, 27(3) |
| |
| Authors: | WANG Yu HUA Hongxing CHEN Yong DU Jianye DU Zhipeng. Naval Academy of Armament Beijing China . State Key Laboratory of Vibration Shock Noise Shanghai Jiao Tong University Shanghai China |
| |
| Affiliation: | WANG Yu1,HUA Hongxing2,CHEN Yong2,DU Jianye1,DU Zhipeng11. Naval Academy of Armament,Beijing 100161,China 2. State Key Laboratory of Vibration,Shock , Noise,Shanghai Jiao Tong University,Shanghai 200030,China |
| |
| Abstract: | The concept of ship anti -shock layer in underwater explosion wave isolation is developed based on the impedance mismatch theory. Wave equation and Taylor's flat plate model are adopted to derive fluid-structure interaction equations for the solid layer and the cavity layer. The numerical examples indicate that the ship anti -shock layer can isolate the underwater explosion wave from ship hull. The ship hull shock peak stress, acceleration and shock spectrum are attenuated significantly when the ship hull i... |
| |
| Keywords: | anti-shock layer shock isolation impedance mismatch underwater explosion |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
