基于兩種模型下的儲水罐應(yīng)力計算
發(fā)布時間:2018-11-07 21:17
【摘要】:分別采用彈簧質(zhì)量模型和流固耦合模型2種方式對大型儲水罐進(jìn)行相互驗證計算。彈簧質(zhì)量模型基于HOUSNER理論,計算出脈沖液體質(zhì)量M0、脈沖液體重心高度H0、對流液體質(zhì)量M1、對流液體重心高度H1以及彈簧模擬對流液體晃動頻率的等效剛度k1,并以此作為有限元模型的輸入?yún)?shù);流固耦合模型采用ANSYS的流體單元fluid80模擬液體,殼單元shell181模擬儲水罐,考慮液體及結(jié)構(gòu)阻尼,計算結(jié)構(gòu)在地震時程下的響應(yīng)。
[Abstract]:Spring mass model and fluid-solid coupling model were used to verify and calculate the large water storage tank. Based on HOUSNER theory, the spring mass model is used to calculate the equivalent stiffness k _ 1 of pulse liquid mass M _ 0, pulse liquid gravity center height H _ 0, convective liquid mass M _ 1, convective liquid gravity center height H _ 1 and spring simulating convective liquid sloshing frequency. It is used as the input parameter of the finite element model. In the fluid-solid coupling model, the fluid element fluid80 of ANSYS is used to simulate the liquid, and the shell element shell181 is used to simulate the water storage tank. Considering the damping of the liquid and the structure, the response of the structure under the earthquake time history is calculated.
【作者單位】: 中國核動力研究設(shè)計院核級設(shè)備鑒定實驗室;
【分類號】:O344.1
本文編號:2317595
[Abstract]:Spring mass model and fluid-solid coupling model were used to verify and calculate the large water storage tank. Based on HOUSNER theory, the spring mass model is used to calculate the equivalent stiffness k _ 1 of pulse liquid mass M _ 0, pulse liquid gravity center height H _ 0, convective liquid mass M _ 1, convective liquid gravity center height H _ 1 and spring simulating convective liquid sloshing frequency. It is used as the input parameter of the finite element model. In the fluid-solid coupling model, the fluid element fluid80 of ANSYS is used to simulate the liquid, and the shell element shell181 is used to simulate the water storage tank. Considering the damping of the liquid and the structure, the response of the structure under the earthquake time history is calculated.
【作者單位】: 中國核動力研究設(shè)計院核級設(shè)備鑒定實驗室;
【分類號】:O344.1
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