关键部位对脱硫塔结构的动力影响分析
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摘要
文章采用有限元程序对烟气湿法脱硫塔薄壳结构的动力特性进行研究,分析了结构关键部位(喷淋管和浆液)在程序中的不同处理方式对结构动力特性的影响程度,并对弹性时程计算进行比较分析。结果表明,喷淋管对结构的约束刚度的大小及浆液对结构动力特性和时程反应的影响都很大。在对此类特种薄壳结构进行结构动力设计和抗震分析时,应当合理考虑这些部位对结构的影响。
The paper studies the structural dynamic properties of the smoking desulfuration tower by utilizing the FEA pragram.The influence of different treatment of key components including the spraying pipe and the desulfuration liquid on the structural dynamic properties is analyzed.The elastic time history analyses are carried out.The research indicates that the spraying pipes produce marked effect on the confinement stiffness of the structure and the desulfuration liquid's coupling effect influence the structural dynamic properties significantly.These influences should be rationally considered when dynamic design and seismic analysis of this kind of special shell structures are made.
The paper studies the structural dynamic properties of the smoking desulfuration tower by utilizing the FEA pragram.The influence of different treatment of key components including the spraying pipe and the desulfuration liquid on the structural dynamic properties is analyzed.The elastic time history analyses are carried out.The research indicates that the spraying pipes produce marked effect on the confinement stiffness of the structure and the desulfuration liquid's coupling effect influence the structural dynamic properties significantly.These influences should be rationally considered when dynamic design and seismic analysis of this kind of special shell structures are made.
引文
[1]侯庆伟,石荣桂,高善彬.湿法脱硫塔内流场温场的CFD分析[J].电力环境保护,2006,22(2):18-21.
[2]耿萍,侯庆伟,路春美.湿法脱硫塔流场温场的的数值模拟分析[J].山东建筑工程学院学报,2005,20(5):43-46.
[3]钟洪玲.湿法脱硫立式吸收塔塔内过程的数值模拟[D].北京:华北电力大学能源与动力工程学院,2001.
[4]赵书锋.基于NASTRAN分析的脱硫塔吸收塔动力特性、地震响应和抗震简化计算方法的研究[D].合肥:合肥工业大学土木建筑工程学院,2006.
[5]钟维军.脱硫塔结构的有限元分析及动力简化计算的研究[D].合肥:合肥工业大学土木建筑工程学院,2006.
[6]牛飞,盛宏玉,徐伟荣.三门峡发电厂600 MW机组烟气脱硫塔有限元分析[J].合肥工业大学学报(自然科学版),2008,31(3):423-426.
[7]薛嵩,唐怀忠,盛宏玉,等.脱硫塔结构有限元动力特征分析[J].合肥工业大学学报(自然科学版),2008,31(2):220-224.
[8]ADINA&D Inc.Theory and modeling guide,volumeⅠ:ADINA solids&structures,report ARD 05-7[R].ADINA&D Inc,2005:683-685.
[2]耿萍,侯庆伟,路春美.湿法脱硫塔流场温场的的数值模拟分析[J].山东建筑工程学院学报,2005,20(5):43-46.
[3]钟洪玲.湿法脱硫立式吸收塔塔内过程的数值模拟[D].北京:华北电力大学能源与动力工程学院,2001.
[4]赵书锋.基于NASTRAN分析的脱硫塔吸收塔动力特性、地震响应和抗震简化计算方法的研究[D].合肥:合肥工业大学土木建筑工程学院,2006.
[5]钟维军.脱硫塔结构的有限元分析及动力简化计算的研究[D].合肥:合肥工业大学土木建筑工程学院,2006.
[6]牛飞,盛宏玉,徐伟荣.三门峡发电厂600 MW机组烟气脱硫塔有限元分析[J].合肥工业大学学报(自然科学版),2008,31(3):423-426.
[7]薛嵩,唐怀忠,盛宏玉,等.脱硫塔结构有限元动力特征分析[J].合肥工业大学学报(自然科学版),2008,31(2):220-224.
[8]ADINA&D Inc.Theory and modeling guide,volumeⅠ:ADINA solids&structures,report ARD 05-7[R].ADINA&D Inc,2005:683-685.