考虑液固耦联的钢制储罐的模态分析与评价  

Modal Analysis and Evaluation of Steel Storage Tanks Considering Liquid-solid Coupling

作　　者：张立娟 陈晓坤 乔春蕾[1] ZHANG Li-juan;CHEN Xiao-kun;QIAO Chun-lei(Hebei University of Architecture,Zhangjiakou 075000,Hebei,China;Zhangjiakou Power Supply Company,State Grid Jibei Electric Power Co.,Ltd.,Zhangjiakou 075000,Hebei,China;Northeast Petroleum University,Daqing 163000,Heilongjiang,China)

机构地区：[1]河北建筑工程学院,河北张家口075000 [2]国网冀北电力有限公司张家口供电公司,河北张家口075000 [3]东北石油大学,黑龙江大庆163000

出　　处：《承德石油高等专科学校学报》2023年第3期42-47,共6页Journal of Chengde Petroleum College

基　　金：河北省科技厅科技支撑计划项目:21557633D;河北省高等学校科学研究项目:SZ2022079;张家口市科学技术研究与发展指导计划项目:2121049D。

摘　　要：为完善钢制储罐的振型变化规律,以1.0×10^(4)m^(3)立式圆筒形储油罐为例,利用ADINA有限元软件对考虑液固耦合效应的非锚固罐和锚固罐进行模态分析,得到了储油罐液体晃动的频率和振型,并与理论计算结果进行比较,两者在数值上接近,验证了有限元模型的正确性;以液面高度、储罐的几何参数和材料属性为变量,分析了非锚固罐的罐液耦联振型和频率。结果表明:液面高度对储液晃动频率和罐液耦联频率的影响都很大。储罐的罐壁厚度、储罐的弹性模量对罐液耦联频率影响较为明显;而底板厚度、储罐的屈服强度对罐液耦联频率影响不大。In order to perfect the changing pattern of tank’s vibration mode,taking 1.0×10^(4) m^(3) vertical cylinder oil storage tank for instance,the ADINA finite element software is used to carry out modal analysis of non-anchor and anchor tanks considering the effect of liquid-solid coupling.The frequency and mode of fluid sloshing for oil storage tank are obtained,compared with theoretical results,they are close in numerical value,which verifies the rationality of finite element model.Taking liquid level,geometrical parameters and material properties as variables,the liquid-solid coupling modes and frequencies of non-anchor tanks are analyzed.Results show that the liquid level has a great influence on liquid sloshing and liquid-solid coupling frequency.The tank wall thickness and elastic modulus of the tank have obvious influence on the frequency of liquid-solid coupling,while the thickness of bottom plate and yield strength of the tank have little effect on the frequency of liquid-solid coupling.

关 键 词：非锚固和锚固油罐 ADINA 液固耦联 模态分析 频率 

分 类 号：TE972[石油与天然气工程—石油机械设备]