基于主子系统耦合效应的直接空冷结构体系振动特性研究
|
摘要
直接空冷结构体系中设备对结构的振动特性具有显著的影响。现场实测了4个直接空冷结构体系的振动特性,研究了风机扰力作用下的结构动力特性参数识别。制作了1/8缩尺比的模型进行试验研究,测试结构动力特性、结构与风机共振点以及结构在风机不同工作状况下的幅频曲线与构件动应变。进行了模态分析和稳态分析,计算结果与测试结果基本吻合。研究结果可为全面了解直接空冷结构体系中结构与设备的共同作用及振动特性提供重要依据。
Equipment has a significant influence on the dynamic behavior of the structure in the direct air cooled condenser support platform.The dynamic properties of four direct air cooled condenser support platforms are measured in site,and identification of the structural dynamic characteristic parameters under the excitation of fans is researched.A 1/8 scale model is constructed and tested.The structural dynamic properties,the resonance vibration frequency of the structure and fans,the amplitude-frequency curve under different work states of fans,and the dynamic strain of typical members are measured in the experiment.The modal analysis and steady state analysis are also performed,and the calculation results show agreement with the test results.The results can be used to comprehensively understand the interaction between a piece of equipment and a structure as well as the structural vibration properties of the direct air cooled condenser support platform.
Equipment has a significant influence on the dynamic behavior of the structure in the direct air cooled condenser support platform.The dynamic properties of four direct air cooled condenser support platforms are measured in site,and identification of the structural dynamic characteristic parameters under the excitation of fans is researched.A 1/8 scale model is constructed and tested.The structural dynamic properties,the resonance vibration frequency of the structure and fans,the amplitude-frequency curve under different work states of fans,and the dynamic strain of typical members are measured in the experiment.The modal analysis and steady state analysis are also performed,and the calculation results show agreement with the test results.The results can be used to comprehensively understand the interaction between a piece of equipment and a structure as well as the structural vibration properties of the direct air cooled condenser support platform.
引文
[1]Dekker N,Venter P,Parrock A.Direct air cooledcondenser support platform at Matimba Power Station[J].The Civil Engineering in South Africa,1987,29(7):277―279.
[2]张建华.大型直接空冷凝汽器支撑结构总体设计及力学计算[D].哈尔滨:哈尔滨工业大学,1998.Zhang Jianhua.General design and mechanicalcalculation on large direct air cooled condenser supportstructure[D].Harbin:Harbin Institute of Technology,1998.(in Chinese)
[3]白国良,朱丽华,赵春莲,李晓文,冉颢.火力发电厂空冷平台研究现状及展望[J].哈尔滨工业大学学报,2007,39(增刊2):538―542.Bai Guoliang,Zhu Lihua,Zhao Chunlian,Li Xiaowen,Ran Hao.Present state and prospect of the air cooledcondenser platform in thermal power plants[J].Journalof Harbin Institute of Technology,2007,39(Sup.2):538―542.(in Chinese)
[4]Chen Y Q,Soong T T.State of the art review:seismicresponse of secondary systems[J].Engineering Structure,1988,10:218―228.
[5]李杰,陈淮,赵晓.结构—设备动力相互作用研究综述[J].世界地震工程,1994,10(2):5―12.Li Jie,Chen Huai,Zhao Xiao.Review of research ondynamic interaction between structure and equipment[J].World Earthquake Engineering,1994,10(2):5―12.(inChinese)
[6]袁建力,樊华,陈汉斌,姚玲,Donato Abruzzese.虎丘塔动力特性的试验研究[J].工程力学,2005,22(5):158―164.Yuan Jianli,Fan Hua,Chen Hanbin,Yao Ling.DonatoAbruzzese.Experimental study of dynamic behavior ofHuqiu pagoda[J].Engineering Mechanics,2005,22(5):158―164.(in Chinese)
[7]贺广零,周勇,李杰.风力发电高塔系统地震动力响应分析[J].工程力学,2009,26(7):72―77.He Guangling,Zhou Yong,Li Jie.Seismic analysis ofwind turbine system[J].Engineering Mechanics,2009,26(7):72―77.(in Chinese)
[8]曹树谦,张文德,萧龙翔.振动结构模态分析—理论,实验与应用[M].天津:天津大学出版社,2001.Cao Shuqian,Zhang Wende,Xiao Longxiang.Modalanalysis of vibration structure—Theory,test and practice[M].Tianjin:Tianjin University Press,2001.(in Chinese)
[9]李国强,陈素文,李杰,陆雪平.上海金茂大厦动力特性测试[J].土木工程学报,2000,33(2):35―39.Li Guoqiang,Chen Suwen,Li Jie,Lu Xueping.Measurements of dynamic properties of Shanghai Jinmaomasion[J].China Civil Engineering Journal,2000,33(2):35―39.(in Chinese)
[10]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2003.Li Zhongxian.Theory and technique of engineeringstructure experiments[M].Tianjin:Tianjin UniversityPress,2003.(in Chinese)
[11]爱德华L威尔逊.结构静力与动力分析[M].北京:中国建筑工业出版社,2006.Edward L Wilson.Static and dynamic analysis ofstructures[M].Beijing:China Architecture and BuildingPress,2006.(in Chinese)
[12]北京金土木软件技术有限公司,中国建筑标准设计研究院.SAP2000中文版使用指南[M].北京:人民交通出版社,2006.Beijing Civil King Softwear Technology CompanyLimited,China Institute of building standard design andresearch.Use guidance of SAP2000 Chinese edition[M].Beijing:China Communication Press,2006.(in Chinese)
[13]彭俊生,罗永坤,彭地.结构动力学、抗震计算与SAP2000应用[M].成都:西南交通大学出版社,2007.Peng Junsheng,Luo Yongkun,Peng Di.Structuraldynamics,aseismic calculation and practice of SAP2000[M].Chengdu:Southwest Jiaotong University Press,2007.(in Chinese)
[14]徐建.建筑振动工程手册[M].北京:中国建筑工业出版社,2002.Xu Jian.Handbook on building vibration[M].Beijing:China Building Press,2002.(in Chinese)
[2]张建华.大型直接空冷凝汽器支撑结构总体设计及力学计算[D].哈尔滨:哈尔滨工业大学,1998.Zhang Jianhua.General design and mechanicalcalculation on large direct air cooled condenser supportstructure[D].Harbin:Harbin Institute of Technology,1998.(in Chinese)
[3]白国良,朱丽华,赵春莲,李晓文,冉颢.火力发电厂空冷平台研究现状及展望[J].哈尔滨工业大学学报,2007,39(增刊2):538―542.Bai Guoliang,Zhu Lihua,Zhao Chunlian,Li Xiaowen,Ran Hao.Present state and prospect of the air cooledcondenser platform in thermal power plants[J].Journalof Harbin Institute of Technology,2007,39(Sup.2):538―542.(in Chinese)
[4]Chen Y Q,Soong T T.State of the art review:seismicresponse of secondary systems[J].Engineering Structure,1988,10:218―228.
[5]李杰,陈淮,赵晓.结构—设备动力相互作用研究综述[J].世界地震工程,1994,10(2):5―12.Li Jie,Chen Huai,Zhao Xiao.Review of research ondynamic interaction between structure and equipment[J].World Earthquake Engineering,1994,10(2):5―12.(inChinese)
[6]袁建力,樊华,陈汉斌,姚玲,Donato Abruzzese.虎丘塔动力特性的试验研究[J].工程力学,2005,22(5):158―164.Yuan Jianli,Fan Hua,Chen Hanbin,Yao Ling.DonatoAbruzzese.Experimental study of dynamic behavior ofHuqiu pagoda[J].Engineering Mechanics,2005,22(5):158―164.(in Chinese)
[7]贺广零,周勇,李杰.风力发电高塔系统地震动力响应分析[J].工程力学,2009,26(7):72―77.He Guangling,Zhou Yong,Li Jie.Seismic analysis ofwind turbine system[J].Engineering Mechanics,2009,26(7):72―77.(in Chinese)
[8]曹树谦,张文德,萧龙翔.振动结构模态分析—理论,实验与应用[M].天津:天津大学出版社,2001.Cao Shuqian,Zhang Wende,Xiao Longxiang.Modalanalysis of vibration structure—Theory,test and practice[M].Tianjin:Tianjin University Press,2001.(in Chinese)
[9]李国强,陈素文,李杰,陆雪平.上海金茂大厦动力特性测试[J].土木工程学报,2000,33(2):35―39.Li Guoqiang,Chen Suwen,Li Jie,Lu Xueping.Measurements of dynamic properties of Shanghai Jinmaomasion[J].China Civil Engineering Journal,2000,33(2):35―39.(in Chinese)
[10]李忠献.工程结构试验理论与技术[M].天津:天津大学出版社,2003.Li Zhongxian.Theory and technique of engineeringstructure experiments[M].Tianjin:Tianjin UniversityPress,2003.(in Chinese)
[11]爱德华L威尔逊.结构静力与动力分析[M].北京:中国建筑工业出版社,2006.Edward L Wilson.Static and dynamic analysis ofstructures[M].Beijing:China Architecture and BuildingPress,2006.(in Chinese)
[12]北京金土木软件技术有限公司,中国建筑标准设计研究院.SAP2000中文版使用指南[M].北京:人民交通出版社,2006.Beijing Civil King Softwear Technology CompanyLimited,China Institute of building standard design andresearch.Use guidance of SAP2000 Chinese edition[M].Beijing:China Communication Press,2006.(in Chinese)
[13]彭俊生,罗永坤,彭地.结构动力学、抗震计算与SAP2000应用[M].成都:西南交通大学出版社,2007.Peng Junsheng,Luo Yongkun,Peng Di.Structuraldynamics,aseismic calculation and practice of SAP2000[M].Chengdu:Southwest Jiaotong University Press,2007.(in Chinese)
[14]徐建.建筑振动工程手册[M].北京:中国建筑工业出版社,2002.Xu Jian.Handbook on building vibration[M].Beijing:China Building Press,2002.(in Chinese)
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