[1]王 健,张旭光,孔维红.火箭橇水刹车高速冲击入水安全性分析[J].南京理工大学学报(自然科学版),2013,37(06):902-906.
　Wang Jian,Zhang Xuguang,Kong Weihong.Safety analysis on rocket sled water brake high-speed water-entry impact[J].Journal of Nanjing University of Science and Technology,2013,37(06):902-906.
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火箭橇水刹车高速冲击入水安全性分析
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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:
37卷
期数:
2013年06期
页码:
902-906
栏目:
出版日期:
2013-12-31

文章信息/Info

Title:
Safety analysis on rocket sled water brake high-speed water-entry impact
作者:
王 健1; 张旭光2; 孔维红2
1.南京理工大学 能源与动力工程学院,江苏 南京 210094;
2.华阴兵器试验中心,陕西 华阴 714200
Author(s):
Wang Jian1; Zhang Xuguang2; Kong Weihong2
1.School of Energy and Power Engineering,NUST,Nanjing 210094,China;
2.Huayin Ordnance Test Center,Huayin 714200,China
关键词:
火箭橇;  水刹车;  冲击动力学;  拉格朗日-光滑粒子流方法
Keywords:
rocket sleds;  water brakes;  impact dynamics;  Lagrange smoothed particle hydrodynamics method
分类号:
O353.4
摘要:
为对其结构安全性进行分析,采用拉格朗日-光滑粒子流(SPH)方法建立了火箭橇水刹车高速入水的冲击动力学有限元模型。计算了水刹车正常入水、阻力管堵塞及倾斜入水时不同吃水深度的结构冲击应力,获得了水刹车结构安全性结果。分析表明:结构钢水刹车在翼刀及阻力管同时入水及阻力管完全堵塞入水时出现塑性变形或破坏,水刹车甚至失去制动能力,建议使用水刹车时采用分阶段入水方式,同时进一步加强结构强度。
Abstract:
To analyze its structure safety,an impact dynamics finite element model for a water brake high-speed water-entry is established by Lagrange-SPH(smoothed particle hydrodynamics)method.The structure stresses of the water brake with various drafts are computed when the brake enters water normally,the resistance tubes are blocked and inclines to enter water,and the structure safety results of the water brake are gained.The analyses show that the structure steel water brake has plastic deformation or failure while fences and resistance tubes enter water simultaneously or resistance tubes block water-entry,and even the brake loses its braking ability.This paper suggests that the water brake should enter water by stages and enhance its structure strength furthermore.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-01-10 修回日期:2013-08-29
基金项目:国家自然科学基金(51305204)
作者简介:王健(1978-),男,博士,助理研究员,主要研究方向:武器系统设计与仿真、终点弹道与高效毁伤,E-mail:genewang@njust.edu.cn。
引文格式:王健,张旭光,孔维红.火箭橇水刹车高速冲击入水安全性分析[J].南京理工大学学报,2013,37(6):902-906.
投稿网址:http://njlgdxxb.paperonce.org
更新日期/Last Update: 2013-12-31