| 低温LNG运输车罐体结构强度的有限元分析 |
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| 引用本文： | 袁新辉,冯毅.低温LNG运输车罐体结构强度的有限元分析[J].低温工程,2009(3). |
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| 作者姓名： | 袁新辉 冯毅 |
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| 作者单位： | 华南理工大学,广州,510640 |
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| 摘 要： | 以低温LNG运输车罐体为研究对象,借助ANSYS为平台,采用有限元的计算方法计算罐体的应力分布特征与结构强度.在分析罐体静态结构应力的基础上考虑运输过程中的一些动态因素.实践表明支承件处是整个罐体散热的集中区域,计算结果表明:考虑动态冲击时峰值应力比不考虑时高了30 MPa-50 MPa;车体突然下降给罐体的冲击要大于突然刹车给罐体的冲击;动态条件下,当LNG压力为0.5 MPa时,4个支承件完全符合罐体的强度要求.
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| 关 键 词： | LNG运输车罐体 动态冲击载荷 有限元分析 |
Finite element analysis of low temperature LNG transporter tank's structural strength |
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| Yuan Xinhui,Feng Yi.Finite element analysis of low temperature LNG transporter tank's structural strength[J].Cryogenics,2009(3). |
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| Authors: | Yuan Xinhui Feng Yi |
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| Affiliation: | South China University of Technology;Guangzhou 510640;China |
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| Abstract: | Taking the low temperature LNG(liquefied nature gas) transporter tank as the research object,the tank structural characteristics of dynamic mutation during transport were calculated.The fact is that the supporting place is the centre radiation region of the tank shell.The calculation result shows that the peak stress is 30 MPa-50 MPa higher when the dynamic impact is considered than that is not.The sudden drop impact to tank body is greater than that of sudden brake.When LNG pressure is 0.5 MPa,the four sup... |
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| Keywords: | LNG transporter tank dynamic impact load finite element |
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