大型储罐液固耦合模态数值的模拟  

Numerical Simulation Liquid-Solid Coupling Modal Analysis of Large Storage Tank

作　　者：王金龙[1] 

机构地区：[1]潍坊学院建筑工程学院,山东潍坊261061

出　　处：《济南大学学报（自然科学版）》2014年第1期77-80,共4页Journal of University of Jinan(Science and Technology)

基　　金：山东省优秀中青年科学家科研奖励基金(BS2009SF002)

摘　　要：以ANSYS软件为分析平台对1 000 m3储罐液固耦合系统的动力特性开展有限元数值模拟,研究刚性基础上储罐系统自振特性并对比本文中模型的计算精度,在此基础上讨论了储罐几何参数、材料参数和地基刚度参数等对储罐系统自振频率的影响。计算结果表明:该储罐的一阶模态的模拟值为0.294,文献值为0.275,相对误差最大为6.9%,验证了有限元模型的正确性。Numerical simulation liquid-solid coupling modal analysis of storage tank is performed by using ANSYS software on the basis of the three-dimensional finite element model. The calculating results are compared to verify the precision. The influences of geometry parameters,material parameters and the stiffness of the base on the seismic response are calculated. The results show that the value of simulation and the literature value for the first mode of storage tank are 0. 294 Hz and 0. 275 Hz respectively. The maximum relative error is 6. 9%,which verifies the correctness of the model.

关 键 词：大型储罐 地震 有限元分析 数值模拟 

分 类 号：TD774[矿业工程—矿井通风与安全]