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爆炸冲击载荷下无线起爆浮标动力响应研究
Reseach on dynamic response of wireless detonating buoyunder explosion shock load
- DOI:
- 作者:
- 李亚伟, 雷宇, 李志文, 辛芳, 王凯民
LI Ya-wei, LEI Yu, LI Zhi-wen, XIN Fang, WANG Kai-min
- 作者单位:
- 重庆前卫科技集团有限公司，重庆 401120
Chongqing Qianwei Technology Group Co., Ltd., Chongqing 401120, China
- 关键词:
- 水下爆炸;无线起爆浮标;数值模拟;声固耦合;动力响应
underwater explosion; Wireless detonating float; numerical simulation; sound structure coupling; dynamic response
- 摘要:
- 针对实航试验中无线起爆浮标的水下爆炸抗冲击防护等问题，利用声固耦合算法，根据对水下爆炸实航环境的分析，确定水下爆炸数值模拟工况，展开无线起爆浮标的水下爆炸冲击响应数值模拟，并利用Geers-Hunter经验公式计算水下爆炸载荷压力-时间曲线，验证了声固耦合算法数值模拟冲击波载荷施加的可靠性。结果表明，声固耦合算法计算的冲击波载荷精度平均误差为2.89%。根据对浮标结构的塑性响应分析，将浮标器件舱底部板架的变形分为“中心凸起”与“中心凹陷”2种变形模式，为无线起爆浮标结构及器件舱设备安装基座的抗冲击设计提供一定参考。
Aiming at the problems of underwater explosion anti shock protection of wireless detonating buoy in actual flight test.Based on the analysis of the actual navigation environment, the acoustic structure coupling algorithm is used to determine the numerical simulation conditions of underwater explosion. The numerical simulation of underwater explosion shock response of wireless detonating buoy is carried out. The pressure time curve of underwater explosion load is calculated by Geers Hunter empirical formula, which verifies the reliability of numerical simulation of shock wave load.The results show that the average error of method is 2.89%.According to the analysis of the plastic response of the buoy structure, the deformation of the bottom plate frame of the buoy device cabin is divided into two deformation modes of center bulge and center depression, which provides a certain reference for the shock resistance design of the structure of the buoy and the installation base of the device cabin.
2023,45(2): 52-59 收稿日期：2021-11-07
DOI：10.3404/j.issn.1672-7649.2023.02.010
分类号：U661.3
作者简介：李亚伟(1994-),男,硕士,工程师,研究方向为水面舰船结构爆炸冲击毁伤与评估
