基于ANSYS考虑浆液影响脱硫吸收塔结构地震响应分析
|
摘要
运用大型通用有限元软ANSYS建立了烟气脱硫吸收塔三维有限元分析模型。多遇地震下,采用时程分析法进行了考虑浆液与不考虑浆液作用的弹性地震反应分析;浆液影响采用流固动力耦合计算模型进行模拟分析,比较了2种地震波作用下顶部最大水平位移、基底剪力以及塔身应力,发现脱硫浆液在地震作用下产生的惯性力影响不容忽略。罕遇地震下对最不利工况进行了弹塑性动力分析,结果证明塔体设计基本合理。
The finite element 3-D model of smoking desulfuration absorber tower is established based on ANSYS.The time-history analysis considering desulfurization liquid by the model of fluid-solid dynamic coupling analysis,and is applied to analyze the seismic response under frequently occurred earthquake.The results include the maximal roof horizontal displacement,roof acceleration,base shear,stress,etc are obtained under 2 natural earthquake waves.It is found that the effect of inertia force caused by the desulfurization liquid under earthquake should not be ignored.According to the most unfavorable processing condition,the nonlinear time history analysis under severe earthquake is conducted.The results demonstrate that the thickness control of the tower is reasonable and the maximal Von Mises stress in the tower does not go beyond the steel's yielding strength.
The finite element 3-D model of smoking desulfuration absorber tower is established based on ANSYS.The time-history analysis considering desulfurization liquid by the model of fluid-solid dynamic coupling analysis,and is applied to analyze the seismic response under frequently occurred earthquake.The results include the maximal roof horizontal displacement,roof acceleration,base shear,stress,etc are obtained under 2 natural earthquake waves.It is found that the effect of inertia force caused by the desulfurization liquid under earthquake should not be ignored.According to the most unfavorable processing condition,the nonlinear time history analysis under severe earthquake is conducted.The results demonstrate that the thickness control of the tower is reasonable and the maximal Von Mises stress in the tower does not go beyond the steel's yielding strength.
引文
[1]GBJ5001-2001.建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.
[2]张方瑞.ANSYS 8.0应用基础与实例教程[M].北京:电子工业出版社2006.
[3]许谋奎,马人乐.镇江电厂烟气脱硫吸收塔有限元计算分析[J].特种结构,2005,22(2):23-25.
[4]徐建国,王博.渡槽结构动力性能的有限元分析[J].郑州工业大学学报,1999,20(2):67-70.
[5]ChungTJ.流体动力学的有限元分析[M].张二骏等译.北京电力工业出版社,1980.
[6]张永亮.大型渡槽结构振动特性分析研究[J].甘肃科技,2005,21(l):97-98.
[7]居荣初,曾心传.弹性结构与液体的耦联振动理论[M].北京:地震出版社,1983.
[8]KinslerE L,Austin R Frey,AlanB CoPPens.Fundamentals of Aeousties[M].NewYork:John Wiley and Sons.1982.
[9]刘希云,赵润祥.流体力学中的有限元与边界元方法「M」.上海:上海交通大学出版社,1993.
[10]徐秉业,刘信声.应用弹塑性力学[M].北京:清华大学出版社,1995.
[2]张方瑞.ANSYS 8.0应用基础与实例教程[M].北京:电子工业出版社2006.
[3]许谋奎,马人乐.镇江电厂烟气脱硫吸收塔有限元计算分析[J].特种结构,2005,22(2):23-25.
[4]徐建国,王博.渡槽结构动力性能的有限元分析[J].郑州工业大学学报,1999,20(2):67-70.
[5]ChungTJ.流体动力学的有限元分析[M].张二骏等译.北京电力工业出版社,1980.
[6]张永亮.大型渡槽结构振动特性分析研究[J].甘肃科技,2005,21(l):97-98.
[7]居荣初,曾心传.弹性结构与液体的耦联振动理论[M].北京:地震出版社,1983.
[8]KinslerE L,Austin R Frey,AlanB CoPPens.Fundamentals of Aeousties[M].NewYork:John Wiley and Sons.1982.
[9]刘希云,赵润祥.流体力学中的有限元与边界元方法「M」.上海:上海交通大学出版社,1993.
[10]徐秉业,刘信声.应用弹塑性力学[M].北京:清华大学出版社,1995.
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