高压输电塔–线体系风致动力响应分析与优化控制
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摘要
建立了输电塔–线耦联体系的空间模型,利用Davenport谱模拟了目标场地风场,采用线性弹簧模型与Maxwell模型相结合模拟调谐质量阻尼器(tunedmassdamper,TMD),采用考虑导线几何刚度时变性的非线性直接积分方法对有无TMD的单塔、塔–线体系风致响应时程分析,进行TMD调频参数优化控制计算,并比较了单塔与塔–线体系时程反应。分析结果表明,对单塔和塔–线体系优化控制,均可根据单塔模态分析得到的频率计算TMD优化参数;由于背景反应的增加,使得塔–线体系总反应比单塔有较大幅度增长。
A three-dimension coupled model of transmission tower-line system is established. Then, wind speed histories of the given field are generated using Davenport spectrum. In addition, a method to simulate tuned mass damper (TMD) is presented and proposed by combining linear spring model and Maxwell model. A nonlinear direct integration method considering conducting wire time-varying geometric stiffness is adopted to calculate wind-induced dynamic response of single tower and tower-line system. Moreover, control effectiveness of different optimization parameters of TMD is compared. The results of this study show that it is acceptable for both single tower and tower-line system to count optimization parameters of TMD according to the frequency computed from single tower modal analysis, and it is due to the increase of background response that make the total response of tower-line system be greater than those of single tower.
A three-dimension coupled model of transmission tower-line system is established. Then, wind speed histories of the given field are generated using Davenport spectrum. In addition, a method to simulate tuned mass damper (TMD) is presented and proposed by combining linear spring model and Maxwell model. A nonlinear direct integration method considering conducting wire time-varying geometric stiffness is adopted to calculate wind-induced dynamic response of single tower and tower-line system. Moreover, control effectiveness of different optimization parameters of TMD is compared. The results of this study show that it is acceptable for both single tower and tower-line system to count optimization parameters of TMD according to the frequency computed from single tower modal analysis, and it is due to the increase of background response that make the total response of tower-line system be greater than those of single tower.
引文
[1]Li Hongnan,Bai Haifeng.High-voltage transmission tower-line system subjected to disaster loads[J].Progress in Natural Science,2006,16(9):899-911.
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[16]张琳琳.随机风场研究与高耸、高层结构抗风可靠性分析[D].上海:同济大学,2006.
[17]李春祥,刘艳霞.高层建筑TMD风振控制优化设计[J].计算力学学报,2001,18(1):69-73.Li Chunxiang,Liu Yanxia.Optimum design of TMD for suppressing vibration of tall buildings subjected to wind[J].Chinese Journal of Computational Mechanics,2001,18(1):69-73(in Chinese).
[18]Wilson E L.Static and dynamic analysis of structures:a physical approach with emphasis on earthquake engineering[M].California:Computer and Structures,Inc,Berkley,2004.
[19]爱德华﹒L﹒威尔逊.结构静力与动力分析-强调地震工程学的物理方法[M].北京金土木软件技术有限公司译.北京:中国建筑工业出版社,2006.
[20]郭勇,孙炳楠,叶尹.大跨越输电塔线体系风振响应的时域分析[J].土木工程学报,2006,12(39):12-18.Guo Yong,Sun Bingnan,Ye Yin.Time-domain analysis on wind-induced dynamic response of long span power transmission line systems[J].China Civil Engineering Journal,2006,12(39):12-18(in Chinese).
[2]张琳琳,谢强,李杰.输电线路多塔耦联体系的风致动力响应分析[J].防灾减灾工程学报,2006,26(3):261-267.Zhang Linlin,Xie Qiang,LI Jie.Dynamic wind-induced response analysis of multi-tower-line coupled system of Transmission Line[J].Journal of Disaster Prevention and Mitigation Engineering,2006,26(3):261-267(in Chinese).
[3]Battista R C,Rodrigues R S,Pfeil M S.Dynamic behavior and stability of transmission line tower under wind forces[J].Journal of Wind Engineering and Industrial Aerodynamics,2003,91(8):1051-1067.
[4]邓洪洲,朱松晔,陈亦,等.大跨越输电塔线体系风振控制研究[J].建筑结构学报,2003,24(4):60-64.Deng Hongzhou,Zhu Songye,Chenyi,et al.Study on wind-induced vibration control of long span transmission line system[J].Journal of Building Structures,2003,24(4):60-64(in Chinese).
[5]邓洪洲,苏速.江阴500kV大跨越输电塔线体系模型风振控制试验研究[J].山东建筑大学学报,2002,17(3):7-12.Deng HongZhou,Su su.Experimental research on wind-induced vibration control of Jiangyin500kV long-span transmission towers and lines system model[J].Journal of Shandong Jianzhu University,2002,17(3):7-12(in Chinese).
[6]Paluch M J,Cappellari T T O,Riera J D.Experimental and numerical assessment of EPS wind action on long span transmission line conductors[J].Journal of Wind Engineering and Industrial Aerodynamics,2007,95(7):473-492.
[7]Loredo-Souza M,Davenport A G.The influence of the design methodology in the response of transmission towers to wind loading[J].Journal of Wind Engineering and Industrial Aerodynamics,2003,91(8):995-1005.
[8]Yasui H,Marukawa H,Momomura Y,et al.Analytical study on wind-induced vibration of power transmission tower[J].Journal of Wind Engineering and Industrial Aerodynamics,1999,8(3):431-441.
[9]Hughes T.The finite element method-linear static and dynamic finite element analysis[M].New Jersey:Prentice Hall,Inc.,1987.
[10]Bathe K J.Finite element procedures in engineering analysis[M].NewJersey:Prentice-Hall,Inc.,1982.
[11]Chopra A.Dynamics of structures[M].2nd Edition.New Jersey:Prentice-Hall,Inc.,2001.
[12]Clough R,Penzien J.Dynamics of structures[M].2nd Edition.New York:McGraw-Hill,1993
[13]袁驷,程大业,叶康生.索结构找形分析的精确单元方法[J].建筑结构学报,2005,26(2):46-51.Yuan Si,Cheng Daye,Ye Kangsheng.Exact element method for form-finding analysis of cable structures[J].Journal of Building Structures,2005,26(2):46-51(in Chinese).
[14]沈世钊,徐崇宝等.武岳著.悬索结构设计(第二版)[M].北京:中国建筑工业出版社,2006.
[15]王之宏.风荷载模拟研究[J].建筑结构学报,1994,4(15):44-52.Wang Zhihong.Simulation of wind loading[J].Journal of Building Structures,1994,4(15):44-52(in Chinese).
[16]张琳琳.随机风场研究与高耸、高层结构抗风可靠性分析[D].上海:同济大学,2006.
[17]李春祥,刘艳霞.高层建筑TMD风振控制优化设计[J].计算力学学报,2001,18(1):69-73.Li Chunxiang,Liu Yanxia.Optimum design of TMD for suppressing vibration of tall buildings subjected to wind[J].Chinese Journal of Computational Mechanics,2001,18(1):69-73(in Chinese).
[18]Wilson E L.Static and dynamic analysis of structures:a physical approach with emphasis on earthquake engineering[M].California:Computer and Structures,Inc,Berkley,2004.
[19]爱德华﹒L﹒威尔逊.结构静力与动力分析-强调地震工程学的物理方法[M].北京金土木软件技术有限公司译.北京:中国建筑工业出版社,2006.
[20]郭勇,孙炳楠,叶尹.大跨越输电塔线体系风振响应的时域分析[J].土木工程学报,2006,12(39):12-18.Guo Yong,Sun Bingnan,Ye Yin.Time-domain analysis on wind-induced dynamic response of long span power transmission line systems[J].China Civil Engineering Journal,2006,12(39):12-18(in Chinese).
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