基于有限元方法的高温气冷堆燃料贮存罐跌落事故评价
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摘要
通过将燃料元件等效为流体,本文采用耦合Eule-rian-Lagrangian(CEL)方法研究了高温气冷堆燃料元件贮存罐的跌落事故。该方法能够描述燃料元件在跌落过程中的流动性和惯性效应,以及燃料元件对贮存罐所产生的侧向液动压力。与等效质量法进行了对比,结果表明:在跌落冲击过程中,等效质量法计算得到的冲击力更大、跌落接触时间更短,而CEL方法则能体现罐体的径向膨胀。因此,CEL方法能够模拟燃料元件的惯性效应以及流动效应,而等效质量法则能充分考虑冲击力的作用,结构设计中可以结合2种方法的计算结果,给出更为合理的设计方案。
Accidental dropping of an HTGR(high temperature gas cooled reactor)fuel cask was analyzed using the Euler-Lagrange(CEL)method with the fuel element modeled as the fluid.The method can describe the flow and inertial effects of the fuel elements during the fall and the lateral fluid dynamic pressure generated by the fuel element on the fuel cask.The results give a larger impact force than the equivalent mass method with a shorter drop time.The CEL method can also predict the radial expansion of the cask.Therefore,the CEL method is able to simulate the inertial effects and the liquidity effects of the fuel element,while the equivalent mass method analyzes only the impact.The results of the two methods can be combined in the structural design to give a more reasonable design.
Accidental dropping of an HTGR(high temperature gas cooled reactor)fuel cask was analyzed using the Euler-Lagrange(CEL)method with the fuel element modeled as the fluid.The method can describe the flow and inertial effects of the fuel elements during the fall and the lateral fluid dynamic pressure generated by the fuel element on the fuel cask.The results give a larger impact force than the equivalent mass method with a shorter drop time.The CEL method can also predict the radial expansion of the cask.Therefore,the CEL method is able to simulate the inertial effects and the liquidity effects of the fuel element,while the equivalent mass method analyzes only the impact.The results of the two methods can be combined in the structural design to give a more reasonable design.
引文
[1]田嘉夫.先进的规则床模块式高温气冷堆概念[J].核科学与工程,2008,28(2):147-157.TIAN Jiafu.Advanced ordered bed modular HTGR reactorconcept[J].Chinese Journal of Nuclear Science andEngineering,2008,28(2):147-157.(in Chinese)
[2]肖宏伶,刘继国.10MW高温气冷堆乏燃料元件的贮存及其安全分析[J].清华大学学报:自然科学版,2001,41(10):49-51.XIAO Hongling,LIU Jiguo.Safety analysis of spent fuelelement storage in 10MW high temperature gascooled reactor[J].Journal of Tsinghua University:Science andTechnology,2001,41(10):49-51.(in Chinese)
[3]International Atomic Energy Agency Safety Standards Series,Safety Guide,No.TS-G-1.1(ST-2).Advisory Material forthe IAEA Regulations for the Safe Transport of RadioactiveMaterial[S].Vienna,Austria:International Atomic EnergyAgency,2002.
[4]胡盈辉,庄茁,由小川.大型储液罐在地震作用下的附加质量法研究[J].压力容器,2009,126(8):1-6.HU Yinghui,ZHUANG Zhuo,YOU Xiaochuan.Addedmass approach to a large-scale liquid-storage tank underseismic ETPitations[J].Pressure Vessel Technology,2009,126(8):1-6.(in Chinese)
[5]Lee Young Shin,Ryub Chung Hyun,Kimc Hyun Soo,et al.A study on the free drop impact of a cask using commercialFEA codes[J].Nuclear Engineering and Design,2005,235:2219-2226.
[6]杨书仪,赵继云,刘德顺,文泽军.贮液容器跌落冲击的有限元数值模拟研究[J].中国机械工程,2009,20(1):44-47.YANG Shuyi,ZHAO Jiyun,LIU Deshun,WEN Zejun.Finite element simulation for the drop impact of fluid-filledcontainer[J].China Mechanical Engineering,2009,20(1):44-47.(in Chinese)
[7]许庆新,沈荣瀛.充液容器跌落过程的SPH模拟方法[J].噪声与振动控制,2007,27(6):13-16.XU Qingxin,SHEN Rongying.Dropping emulation analysisof fluid-filled tank using SPH method[J].Noise andVibration Control,2007,27(6):13-16.(in Chinese)
[8]Dassault Systmes Simulia Corp.ABAQUS Version 6.9Documentation[M].Providence,USA:Dassault SystmesSimulia Corp,2009.
[9]The American Society of Mechanical Engineers.ASME Boilerand Pressure Vessel Code,Section II,MaterialSpecifications,Part D Propertites[M].New York,USA:Shaw Group Inc,2004.
[10]庄茁,张帆,岑松.ABAQUS非线性有限元分析与实例[M].北京:科学出版社,2005.ZHUANG Zhuo,ZHANG Fan,CEN Song.AbaqusNon-Linear FEM Analysis and Example[M].Beijing:Science Press,2005.(in Chinese)
[2]肖宏伶,刘继国.10MW高温气冷堆乏燃料元件的贮存及其安全分析[J].清华大学学报:自然科学版,2001,41(10):49-51.XIAO Hongling,LIU Jiguo.Safety analysis of spent fuelelement storage in 10MW high temperature gascooled reactor[J].Journal of Tsinghua University:Science andTechnology,2001,41(10):49-51.(in Chinese)
[3]International Atomic Energy Agency Safety Standards Series,Safety Guide,No.TS-G-1.1(ST-2).Advisory Material forthe IAEA Regulations for the Safe Transport of RadioactiveMaterial[S].Vienna,Austria:International Atomic EnergyAgency,2002.
[4]胡盈辉,庄茁,由小川.大型储液罐在地震作用下的附加质量法研究[J].压力容器,2009,126(8):1-6.HU Yinghui,ZHUANG Zhuo,YOU Xiaochuan.Addedmass approach to a large-scale liquid-storage tank underseismic ETPitations[J].Pressure Vessel Technology,2009,126(8):1-6.(in Chinese)
[5]Lee Young Shin,Ryub Chung Hyun,Kimc Hyun Soo,et al.A study on the free drop impact of a cask using commercialFEA codes[J].Nuclear Engineering and Design,2005,235:2219-2226.
[6]杨书仪,赵继云,刘德顺,文泽军.贮液容器跌落冲击的有限元数值模拟研究[J].中国机械工程,2009,20(1):44-47.YANG Shuyi,ZHAO Jiyun,LIU Deshun,WEN Zejun.Finite element simulation for the drop impact of fluid-filledcontainer[J].China Mechanical Engineering,2009,20(1):44-47.(in Chinese)
[7]许庆新,沈荣瀛.充液容器跌落过程的SPH模拟方法[J].噪声与振动控制,2007,27(6):13-16.XU Qingxin,SHEN Rongying.Dropping emulation analysisof fluid-filled tank using SPH method[J].Noise andVibration Control,2007,27(6):13-16.(in Chinese)
[8]Dassault Systmes Simulia Corp.ABAQUS Version 6.9Documentation[M].Providence,USA:Dassault SystmesSimulia Corp,2009.
[9]The American Society of Mechanical Engineers.ASME Boilerand Pressure Vessel Code,Section II,MaterialSpecifications,Part D Propertites[M].New York,USA:Shaw Group Inc,2004.
[10]庄茁,张帆,岑松.ABAQUS非线性有限元分析与实例[M].北京:科学出版社,2005.ZHUANG Zhuo,ZHANG Fan,CEN Song.AbaqusNon-Linear FEM Analysis and Example[M].Beijing:Science Press,2005.(in Chinese)
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