| 特种材料球鼻艏抗冲击特性数值研究 |
| |
| 引用本文： | 孙龙泉,王庆周,郑建丽.特种材料球鼻艏抗冲击特性数值研究[J].船海工程,2013(6):1-7,11. |
| |
| 作者姓名： | 孙龙泉 王庆周 郑建丽 |
| |
| 作者单位： | [1]哈尔滨工程大学船舶工程学院,哈尔滨150001 [2]中国水产科学研究院渔业机械仪器研究所,上海200092 |
| |
| 基金项目： | 国家安全重大基础研究项目子专题（613157020102）,中央高校基本科研业务费资助（HEUCF130107） |
| |
| 摘 要： | 为探讨球鼻艏结构的抗冲击性能，采用数值手段对典型球鼻艏结构进行一体化建模，基于Abaqus的声固耦合法模拟水下非接触爆炸载荷与球鼻艏结构的相互作用，提取设计工况下的球鼻艏典型部位的冲击响应结果。结果表明：钛合金材料极大提高了球鼻艏结构的局部抗冲击性能，但在遭受水下非接触爆炸载荷时，仍出现了明显的塑性变形；球鼻艏底部钢结构由于采用纵横肘板进行支持，具有优异的安全性；随着冲击因子的增加，球鼻艏结构的应力近似呈线性增长，而塑性应变曲线随着冲击因子的增加呈指数曲线增加。
|
| 关 键 词： | 球鼻艏 水下爆炸 结构响应 局部强度 |
Numerical Simulation on Anti-shock Performance of Bulbous Bow for Special Material |
| |
| Authors: | SUN Long-quart WANG Qing-zhou ZHENG Jian-li |
| |
| Institution: | 1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China; 2. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Science, Shanghai 200092, China ) |
| |
| Abstract: | In order to research the bulbous bow on the anti-shock performance, the integrated model was established by nu- merical method based on full investigation. The interaction between the non-contact explosion load and the structure was simula- ted by the acoustic-structure coupling method with the Abaqus. The conclusion was dawn as follows ： as the application of titani- um alloy enhances the shock resistance while there exists obvious plastic deformation subjected to non-contact explosion; the safe- ty of steel structure in the bottom is improved owning to the brackets in the length and breadth; the strain of the bulbous bow pres- ents the linear increase and the plastic strain presents exponential increase with the impulsive factor increasing. |
| |
| Keywords: | bulbous bow underwater explosion structure response local strength |
| 本文献已被 维普 等数据库收录！ |
