| 均匀火焰包围下液化气容器的瞬态应力场分析 |
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| 引用本文： | 尹奇志,肖金生,赵在理,杨波. 均匀火焰包围下液化气容器的瞬态应力场分析[J]. 武汉理工大学学报(交通科学与工程版), 2007, 31(5): 879-881,897 |
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| 作者姓名： | 尹奇志 肖金生 赵在理 杨波 |
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| 作者单位： | 1. 武汉理工大学能源与动力工程学院,武汉,430063
2. 武汉理工大学汽车工程学院,武汉,430070;武汉理工大学材料复合新技术国家重点实验室,武汉,430070 |
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| 基金项目： | 高等学校博士学科点专项科研项目;武汉理工大学校科研和校改项目 |
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| 摘 要： | 针对均匀火焰包围下的球型液化气容器的热响应问题,运用传热学理论和有限元方法计算并分析了均匀火焰包围下的球型液化气容器的瞬态热应力、机械应力和总应力.结果表明对于均匀火焰包围下的球形液化气容器,容器的最大当量热应力远大于最大当量机械应力,最大当量应力位置出现在最高液面附近,液面的波动是产生较高应力的根本原因.应对与液面接触的壁面区域进行重点防护.
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| 关 键 词： | 液化气 压力容器 应力分析 有限元 |
| 修稿时间： | 2007-04-08 |
Transient Stress Field Analysis of Liquefied petroleum Gas Vessel Under Pool Fire Surrounding |
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| Yin Qizhi,Xiao Jinsheng,Zhao Zaili,Yan Bo. Transient Stress Field Analysis of Liquefied petroleum Gas Vessel Under Pool Fire Surrounding[J]. journal of wuhan university of technology(transportation science&engineering), 2007, 31(5): 879-881,897 |
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| Authors: | Yin Qizhi Xiao Jinsheng Zhao Zaili Yan Bo |
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| Affiliation: | 1.School of Energy and Power Engineering, WUT , Wuhan 430063;2.School of Automobile Engineering , State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, WUT, Wuhan 430070 |
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| Abstract: | The transient stress field analysis aims at the thermal and mechanical response of LPG vessel under pool fire surrounding environment.Finite element analysis method is used to calculate the stress field.Thermal boundary conditions of LPG vessel are determined according to heat transfer theory and calculated by the software PLGS99.The results show that the maximum whole stress of the vessel appears near the highest surface where liquid can reach,the maximum thermal stress is much greater than the maximum mechanical stress and fluctuation of liquid surface is the main reason of high stress.The highest position of the LPG vessel which liquid can reach should be protected as it is the most dangerous place. |
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| Keywords: | liquefied petroleum gas pressure vessel stress analysis finite element |
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