基于弹簧阻尼器的风机桥架的减振设计
|
摘要
针对空冷电厂风机运行时引起的风机桥架振动问题,运用ANSYS有限元分析软件,对由钢桁架和钢筋混凝土框架组成的风机桥架系统进行减振设计.通过在支撑板与风机桥架之间设置弹簧阻尼器,致使风机桥架各测点的振动大幅下降,很多地方的减幅可达90%.实验结果显示,在支撑板与风机桥架之间设置弹簧阻尼器减振效果明显,这为合理设计风机桥架提供了依据.
Aiming at solving the problem of the vibration of the air blower bridge truss caused by the working of air blower in the air-cooling system of the power plant,and using the ANSYS finite element analysis software,the design of vibration absorption of the air blower bridge system consisting of the steel truss and the reinforced concrete frame is completed.By installing spring damper between the support plate and the air blower bridge truss,the vibration at each point of the air blower bridge truss plummets greatly;some of which even drops by 90%.The results of the experiment show that significant effects of damping can be achieved by installing the spring damper between the support plate and the air blower bridge truss,which in turn serves as a reference for the rational design of the air blower bridge truss.
Aiming at solving the problem of the vibration of the air blower bridge truss caused by the working of air blower in the air-cooling system of the power plant,and using the ANSYS finite element analysis software,the design of vibration absorption of the air blower bridge system consisting of the steel truss and the reinforced concrete frame is completed.By installing spring damper between the support plate and the air blower bridge truss,the vibration at each point of the air blower bridge truss plummets greatly;some of which even drops by 90%.The results of the experiment show that significant effects of damping can be achieved by installing the spring damper between the support plate and the air blower bridge truss,which in turn serves as a reference for the rational design of the air blower bridge truss.
引文
[1]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007
[2]徐建.建筑振动工程手册[M].北京:中国建筑工业出版社,2002
[3]周长城,胡仁喜,熊文波.ANSYS11.0基础与典型范例[M].北京:电子工业出版社,2007
[4]国家技术监督局,中华人民共和国建设部.GB50040-96动力机器基础设计规范[S].北京:中华人民共和国机械工业部,1997
[5]电力工业部西北电力设计院.DL 5022-93火力发电厂土建结构设计技术规定[S].北京:电力工业部,1980
[6]屈铁军,窦瑞杰.电厂直接空冷风机系统工作条件下振动特性试验研究[D].北京:北方工业大学,2010
[7]王光远.建筑结构的振动[M].北京:科学出版社,1978
[8]吴琛,周瑞忠.地震瞬态反应计算与结构位移反应谱研究[J].水力发电学报,2007
[2]徐建.建筑振动工程手册[M].北京:中国建筑工业出版社,2002
[3]周长城,胡仁喜,熊文波.ANSYS11.0基础与典型范例[M].北京:电子工业出版社,2007
[4]国家技术监督局,中华人民共和国建设部.GB50040-96动力机器基础设计规范[S].北京:中华人民共和国机械工业部,1997
[5]电力工业部西北电力设计院.DL 5022-93火力发电厂土建结构设计技术规定[S].北京:电力工业部,1980
[6]屈铁军,窦瑞杰.电厂直接空冷风机系统工作条件下振动特性试验研究[D].北京:北方工业大学,2010
[7]王光远.建筑结构的振动[M].北京:科学出版社,1978
[8]吴琛,周瑞忠.地震瞬态反应计算与结构位移反应谱研究[J].水力发电学报,2007
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