| Thermo-Mechanical Analysis of Water-Cooled Gun Barrel During Burst Firing |
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| 作者姓名： | 樊黎霞 胡志刚 赵建波 |
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| 作者单位： | School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094 Jiangsu, China |
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| 摘 要： | The thermo-mechanical stress and deformation of water-cooled gun barrel during burst firing are studied by finite element analysis （FEA）. The problem is modeled in two steps： 1） A transient heat transfer analysis is first carried out in order to determine temperature evolution and to predict the residual temperatures during the burst firing event; 2） The thermo-mecha-nical stresses and deformation caused by both the residual temperature field and the gas pressure are then calculated. The results show that the residual temperature field tends to a steady state with the increasing of rounds. The residual temperature field has much effect on the gun barrel stress and deformation, especially on the assembly area between barrel and water jacket. The gage between the barrel and water jacket is the critical factor to the thermo- mechanical stress and deformation. The results of this analysis will be very useful to develop the new strength design theory of the liquid-cooled gun barrel.
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| 关 键 词： | 枪 有限元分析 机械分析 武器 |
| 文章编号： | 1673-002X（2006）01-0001-06 |
| 收稿时间： | 2005-10-17 |
Thermo-Mechanical Analysis of Water-Cooled Gun Barrel During Burst Firing |
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| FAN Li-xia,HU Zhi-gang,ZHAO Jian-bo.Thermo-Mechanical Analysis of Water-Cooled Gun Barrel During Burst Firing[J].Journal of China Ordnance,2006,2(1):1-6. |
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| Authors: | FAN Li-xia HU Zhi-gang ZHAO Jian-bo |
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| Abstract: | The thermo-mechanical stress and deformation of water-cooled gun barrel during burst firing are studied by finite element analysis (FEA). The problem is modeled in two steps: 1) A transient heat transfer analysis is first carried out in order to determine temperature evolution and to predict the residual temperatures during the burst firing event; 2) The thermo-mecha-nical stresses and deformation caused by both the residual temperature field and the gas pressure are then calculated. The results show that the residual temperature field tends to a steady state with the increasing of rounds. The residual temperature field has much effect on the gun barrel stress and deformation, especially on the assembly area between barrel and water jacket. The gage between the barrel and water jacket is the critical factor to the thermo-mechanical stress and deformation. The results of this analysis will be very useful to develop the new strength design theory of the liquid-cooled gun barrel. |
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| Keywords: | water-cooled gun barrel burst firing thermo-mechanical analysis finite element analysis Burst During Gun Barrel develop strength design theory gage critical factor especially assembly area water jacket effect results show steady state increasing stresses |
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