LED光源水下爆炸隔振设计

王文冠; 周 力

doi:10.11993/j.issn.1673-1948.2016.05.0010

LED光源水下爆炸隔振设计

doi: 10.11993/j.issn.1673-1948.2016.05.0010

王文冠¹,
周力²

1.
大连测控技术研究所, 辽宁大连, 116013
2.
大连理工大学船舶工程学院, 辽宁大连, 116024

基金项目: 国家自然科学基金(61273333), 西北工业大学基础研究基金(JC20100224)

详细信息

作者简介:
王文冠(1989-), 男, 硕士, 主要从事水声工程方面的研究.

中图分类号: TB858.1; O389
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出版历程
- 刊出日期: 2016-10-20

Design of Vibration Isolator Against Underwater Explosion for LED Light Source

WANG Wen-guan¹,
ZHOU Li²

1.
Dalian Scientific Test and Control Technology Institute, Dalian 116013, China
2.
School of Ocean Engineering, Dalian University of Technology, Dalian 116024, China

摘要

摘要: 为了分析水下爆炸气泡的脉动特性, 直观地观察水下爆炸气体产物的脉动过程, 设计了发光二极管(LED)照明设备，并对隔振设计进行了研究。文中应用数值仿真方法, 研究了LED光源隔振系统在非接触水下爆炸载荷作用下的性能, 利用Hypermesh软件建立了LED灯、隔振系统、保护罩及周围水介质的有限元分析模型, 应用ABAQUS软件中的声-结构耦合方法, 分析了隔振器的动态响应。通过分析出线口位置弹簧两端点加速度时程曲线, 得到结构内外介质的密度差会影响爆炸冲击波的传递路径, 并且结构的固定方式会影响LED光源的照明效果。文中的研究可为小型结构水下爆炸隔振设计提供参考。
- 水下爆炸 /
- LED光源 /
- 声-结构耦合 /
- 隔振系统 /
- 冲击加速度
Abstract: To directly observe and analyze the impulsion characteristics of the bubbles induced by underwater explosion, a light-emitting diode(LED) light source and its vibration isolator are designed. The characteristics of the vibration isolator under non-contact underwater explosion load are simulated. Finite element models of the LED, its vibration isolator, protection cover and water medium are built by using the software Hypermesh. Then the acoustic-structural coupling method in the software ABAQUS is employed to analyze the dynamic response of the isolator. By analyzing the time history curve of acceleration of two terminal points on the isolator, it is concluded that the medium density difference between inside and outside of the structure will affect transmission path of explosion shock wave, and the fixing mode of the structure will influence illumination of the LED light source. This research may provide reference for design of vibration isolator against underwater explosion for small structure.
- underwater explosion /
- LED light source /
- acoustic-structural coupling /
- vibration isolation system /
- impact acceleration

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参考文献(12)

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