考虑流固耦合的海洋储油罐平台地震反应分析
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摘要
基于流体-结构相互作用理论,采用有限元方法对海洋储油罐平台的地震反应进行了分析。首先,将基于流固耦合理论的耦合模型计算结果同基于Housner理论的简化模型计算结果进行了比较,明确了采用耦合模型的必要性。然后,分析了储油罐内液体深度、地震波输入方向、地震波维数、地震波波型等因素对储油罐平台和罐体反应的影响。得出的结论可为海洋储油罐平台的设计提供参考。
Finite element method based on the theory of interaction between fluid and structure was used to analyze the dynamic response of the offshore jacket platform with oil storage tank during earthquake.Meanwhile,a simplified model based on the theory of Housner was established for the offshore platform as well.The interaction model was more reasonable and credible compared with the above two models.Many factors such as oil depth in the tank,excitation direction,excitation dimensions and earthquake wave type were studied on the interaction model.Several conclusions which could be refered for the offshore platform design were drawn.
Finite element method based on the theory of interaction between fluid and structure was used to analyze the dynamic response of the offshore jacket platform with oil storage tank during earthquake.Meanwhile,a simplified model based on the theory of Housner was established for the offshore platform as well.The interaction model was more reasonable and credible compared with the above two models.Many factors such as oil depth in the tank,excitation direction,excitation dimensions and earthquake wave type were studied on the interaction model.Several conclusions which could be refered for the offshore platform design were drawn.
引文
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[2]李彦民,徐刚,任文敏,张维.储液容器流固耦合动力响应分析计算[J].工程力学,2002,19(4):29-32.
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[4]Shrimali M K,Jangid R S.Seismic analysis of base-isolated liquid storage tanks[J].Journal of Sound and Vibration,2004,275(1-2):59-75.
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[6]李长升,苑宋项.海洋平台上储油罐地震反应计算[J].海洋工程,1999,17(3):46-53.
[7]宫克勤,刘扬,孙建刚,刘颖.阻尼对储油罐的动力反应影响分析[J].油气田地面工程,2006,25(12):5-6.
[8]曲淑英,于仁才,王心健,辛翠香.固、液耦合储油罐的局部动力效应研究[J].辽宁工程技术大学学报,2006,25(1):60-62.
[9]王勖成.有限单元法[M].北京:清华大学出版社,2003.
[2]李彦民,徐刚,任文敏,张维.储液容器流固耦合动力响应分析计算[J].工程力学,2002,19(4):29-32.
[3]Cho K H,et al.Seismic response of base-isolated liquid storage tanks considering fluid-structure-soil interaction in timedomain[J].Soil Dynamics and Earthquake Engineering,2004,24(11):839-852.
[4]Shrimali M K,Jangid R S.Seismic analysis of base-isolated liquid storage tanks[J].Journal of Sound and Vibration,2004,275(1-2):59-75.
[5]Vandiver J K,Mitome S.The effect of liquid storage tanks on the dynamic response of offshore platforms[J].Journal ofPetroleum Technology,1979:1231-1240.
[6]李长升,苑宋项.海洋平台上储油罐地震反应计算[J].海洋工程,1999,17(3):46-53.
[7]宫克勤,刘扬,孙建刚,刘颖.阻尼对储油罐的动力反应影响分析[J].油气田地面工程,2006,25(12):5-6.
[8]曲淑英,于仁才,王心健,辛翠香.固、液耦合储油罐的局部动力效应研究[J].辽宁工程技术大学学报,2006,25(1):60-62.
[9]王勖成.有限单元法[M].北京:清华大学出版社,2003.
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