蛋形消化池与流体相互作用动力分析
|
摘要
研究预应力蛋形消化池与其内部流体相互耦合作用下的地震响应分析问题。通过ANSYS程序建立了计算流固耦合体系的有限元模型,分析比较了耦合效应对结构动力特性的影响,给出了结构的自振频率、模态、地震响应加速度、位移以及池体的应力。与国内首次模拟地震振动台试验结果进行了比较,两者符合良好,表明该有限元计算模型是合理的,可以应用于类似特种结构。
A study on the interaction between the prestressed egg-shaped digester and liquid is performed in the paper. Through the computer program ANSYS, seismic evaluation of the digester is performed using a 3D finite-element model that includes the effect of fluid-solid interaction. The influence of coupling interaction on dynamic characteristic is analyzed. Natural frequencies, mode shapes, static response and dynamic response including the response acceleration, response displacement and response stress were calculated. Comparisons of calculated responses and those of shaking table tests for the first time in China show reasonably good agreement. It demonstrates that this finite-element model is reasonable and can be applied to the engineering design.
A study on the interaction between the prestressed egg-shaped digester and liquid is performed in the paper. Through the computer program ANSYS, seismic evaluation of the digester is performed using a 3D finite-element model that includes the effect of fluid-solid interaction. The influence of coupling interaction on dynamic characteristic is analyzed. Natural frequencies, mode shapes, static response and dynamic response including the response acceleration, response displacement and response stress were calculated. Comparisons of calculated responses and those of shaking table tests for the first time in China show reasonably good agreement. It demonstrates that this finite-element model is reasonable and can be applied to the engineering design.
引文
[1]王劲,董广瑞,何德湛.蛋形消化池建造技术在我国的应用[J].中国给水排水,2001,9:65~66.Wang Jin,Dong Guangrui,He Dezhan.The technical application of the egg-shaped digester in China[J].China Water and Wastewater,2001,9:65~66.(in Chinese)
[2]Hamdan H.Seismic behavior of cylindrical steel liquid storage tanks[J].Journal of Constructional Steel Research,2000,53:307~333.
[3]高晓安,陆道纲,朱玉巧.考虑流固耦合的储液容器地震反应计算[J].工程抗震,2001,3:1~44.Gao Xiaoan,Lu Daogang,Zhu Yuqiao.The seismic response calculation of tank considering the interaction of fluid and solid[J].Earthquake Resistant Engineering,2001,3:1~44.(in Chinese)
[4]刘圣龙.蛋形消化池旋转薄壳结构研究与应用[J].工程力学,1996,(增刊):555~559.Liu Shenglong.The research and application of revolving shell of the egg-shaped digester[J].Engineering Mechanics,1996,(Sup.):555~559.(in Chinese)
[5]龚曙光.ANSYS基础应用及范例解析[M].北京:机械工业出版社,2003.Gong Shuguang.Ansys foundation application and model analysis[M].Beijing:China Machine Press,2003.(in Chinese)
[6]刘涛,杨凤鹏.精通ANSYS[M].北京:清华大学出版社,2002.Liu Tao,Yang Fengpeng.Skilled in ANSYS[M].Beijing:Tsinghua University Press,2002.(in Chinese)
[7]Iarghamee M S.Egg-shaped digester design and seismic evaluation.Restructuring:America and Beyond[C].Structures Congrees-Proceedings v21995,ASCE,New York,USA,1995,1766~1780.
[8]薛晓荣.卵形消化池结构设计[J].特种结构,2001,2:12~15.Xue Xiaorong.The structural design of the oral digestion tank[J].Special Structure,2001,2:12~15.(in Chinese)
[9]Uno Kiyoshi,Naritomi Masaru,Takanishi Teruhiko,Kotsubo Seima.Liquid’s dynamic forces at the top of the pile-group foundations in egg-shaped tanks[J].Memoirs of the Faculty of Engineering,Kyushu University,1988,48(4):329~339.
[10]Chen Bang-Fuh.Hybrid three dimensional finite-difference and finite-element analysis of seismic wave induced fluid-structure interaction of a vertical cylinder[J].Ocean Engineering,1998,25(8):639~656.
[11]Zarghamee Mehdi S,Liepins Atis A,Moody James R.Egg-shaped digester design and seismic evaluation[C].Proceeding of the13th Structures Congress,ASCE,Boston,MA,USA,1995.1766~1780.
[2]Hamdan H.Seismic behavior of cylindrical steel liquid storage tanks[J].Journal of Constructional Steel Research,2000,53:307~333.
[3]高晓安,陆道纲,朱玉巧.考虑流固耦合的储液容器地震反应计算[J].工程抗震,2001,3:1~44.Gao Xiaoan,Lu Daogang,Zhu Yuqiao.The seismic response calculation of tank considering the interaction of fluid and solid[J].Earthquake Resistant Engineering,2001,3:1~44.(in Chinese)
[4]刘圣龙.蛋形消化池旋转薄壳结构研究与应用[J].工程力学,1996,(增刊):555~559.Liu Shenglong.The research and application of revolving shell of the egg-shaped digester[J].Engineering Mechanics,1996,(Sup.):555~559.(in Chinese)
[5]龚曙光.ANSYS基础应用及范例解析[M].北京:机械工业出版社,2003.Gong Shuguang.Ansys foundation application and model analysis[M].Beijing:China Machine Press,2003.(in Chinese)
[6]刘涛,杨凤鹏.精通ANSYS[M].北京:清华大学出版社,2002.Liu Tao,Yang Fengpeng.Skilled in ANSYS[M].Beijing:Tsinghua University Press,2002.(in Chinese)
[7]Iarghamee M S.Egg-shaped digester design and seismic evaluation.Restructuring:America and Beyond[C].Structures Congrees-Proceedings v21995,ASCE,New York,USA,1995,1766~1780.
[8]薛晓荣.卵形消化池结构设计[J].特种结构,2001,2:12~15.Xue Xiaorong.The structural design of the oral digestion tank[J].Special Structure,2001,2:12~15.(in Chinese)
[9]Uno Kiyoshi,Naritomi Masaru,Takanishi Teruhiko,Kotsubo Seima.Liquid’s dynamic forces at the top of the pile-group foundations in egg-shaped tanks[J].Memoirs of the Faculty of Engineering,Kyushu University,1988,48(4):329~339.
[10]Chen Bang-Fuh.Hybrid three dimensional finite-difference and finite-element analysis of seismic wave induced fluid-structure interaction of a vertical cylinder[J].Ocean Engineering,1998,25(8):639~656.
[11]Zarghamee Mehdi S,Liepins Atis A,Moody James R.Egg-shaped digester design and seismic evaluation[C].Proceeding of the13th Structures Congress,ASCE,Boston,MA,USA,1995.1766~1780.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心