| 超弹性夹芯覆盖层的水下爆炸防护性能 |
| |
| 引用本文： | 谌勇,华宏星,汪玉,勾厚渝.超弹性夹芯覆盖层的水下爆炸防护性能[J].爆炸与冲击,2009,29(4):395-400. |
| |
| 作者姓名： | 谌勇 华宏星 汪玉 勾厚渝 |
| |
| 作者单位： | 1.上海交通大学机械系统与振动国家重点实验室，上海 200240； |
| |
| 基金项目： | 国家自然科学基金面上项目，国家自然科学基金青年科学基金项目 |
| |
| 摘 要： | 对橡胶夹芯覆盖层在船模受水下爆炸时的防护作用进行了实验研究。以钢制加筋方盒模型为实验对象，针对有、无覆盖层2种情况开展了一系列5 kg当量的水下爆炸对比实验。对加速度、应变及壁压等物理量进行了分析对比。结果表明，超弹性覆盖层能有效降低结构受冲击波时的响应峰值。而壁压对比揭示了由于流固耦合，作用在结构上的总入射冲量大幅度降低。频域分析表明，覆盖层的作用可以用一个低通滤波器进行类比，对于50 Hz以上的高频信号衰减明显，但对于低于50 Hz的低频信号影响不大。
|
| 关 键 词： | 固体力学 防护性能 超弹性 夹芯覆盖层 水下爆炸 |
Protective effects of hyper-elastic sandwiches coated onto metal boxes subjected to underwater explosion |
| |
| CHEN Yong,HUA Hong-xing,WANG Yu,GOU Hou-yu.Protective effects of hyper-elastic sandwiches coated onto metal boxes subjected to underwater explosion[J].Explosion and Shock Waves,2009,29(4):395-400. |
| |
| Authors: | CHEN Yong HUA Hong-xing WANG Yu GOU Hou-yu |
| |
| Institution: | 1.State Key Lab of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China;2.Institute of Naval Vessels, Naval Academy of Armament, Beijing 100073, China |
| |
| Abstract: | In order to explore the protective effects of the elastic rubber sandwich layer coated onto a ship hull,a series of 5-kg-TNT-equivalent underwater explosion tests were conducted on a floating steel box before and after the rubber sandwich was coated onto to comprehend the dynamic performance of the protective layer.Acceleration,strain and wall pressure histories at several typical locations were monitored as the main criteria and analyzed.The super-elastic protective layer is capable of lowering both accele... |
| |
| Keywords: | solid mechanics protective effect super-elastic sandwich layer underwater explosion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《爆炸与冲击》浏览原始摘要信息 |
| 点击此处可从《爆炸与冲击》下载免费的PDF全文 |
