[1]杨杰,李爱群,缪长青.大跨斜拉桥动力特性的主元特征提取[J].东南大学学报(自然科学版),2006,36(4):613-616.[doi:10.3969/j.issn.1001-0505.2006.04.025]
 Yang Jie,Li Aiqun,Miao Changqing.Principal component feature extraction of dynamic characters in long span cable-stayed bridge[J].Journal of Southeast University (Natural Science Edition),2006,36(4):613-616.[doi:10.3969/j.issn.1001-0505.2006.04.025]
点击复制

大跨斜拉桥动力特性的主元特征提取()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第4期
页码:
613-616
栏目:
交通运输工程
出版日期:
2006-07-20

文章信息/Info

Title:
Principal component feature extraction of dynamic characters in long span cable-stayed bridge
作者:
杨杰12 李爱群1 缪长青1
1 东南大学土木工程学院, 南京 210096; 2 南京航空航天大学土木工程系, 南京 210016
Author(s):
Yang Jie12 Li Aiqun1 Miao Changqing1
1 College of Civil Engineering, Southeast University, Nanjing 210096, China
2 Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
关键词:
斜拉桥 频响函数 主元 特征提取
Keywords:
cable-stayed bridge FRF principal component feature extraction
分类号:
U44;TP18
DOI:
10.3969/j.issn.1001-0505.2006.04.025
摘要:
针对润扬长江大桥北汊斜拉桥进行动力分析,采用主元分析对其频响函数进行了有效降维,并根据降维后的主元重构了结构频响.误差分析表明,可以用较少的主元向量来综合表征高维的结构频响函数; 并且选取的主元个数越多,对频响函数的表征越精确,重构误差也越小.对于大跨斜拉桥(润扬长江大桥北汊斜拉桥)的1 024维频响函数可以仅用27个(或17个)主元来提取其主要特征,精度可满足工程需要.
Abstract:
The dynamic behavior of a long span cable-stayed bridge(north bridge of Runyang Yangtse River Bridge)is calculated, the frequency response function(FRF)is compressed using principal component analysis(PCA), and the FRF is then reconstructed based on a few, principal components. The error analysis shows that the main features of FRF can be extracted by using less principal components, and the more the principal components, the more precise the reconstructed FRF. The main features of the FRF of long span Runyang Bridge, which has 1 024 dimensions, can be extracted by 27 or 17 principal components, and the reconstruction error is acceptable.

参考文献/References:

[1] Limsamphancharoen N.Condition monitoring of structures by using ambient dynamic responses[D].University of Illinois at Urbana-Champaign,2003.
[2] 杨杰,李爱群,缪长青.BP神经网络在大跨斜拉桥的斜拉索损伤识别中的应用[J].土木工程学报,2006,39(5):72-84.
  Yang Jie,Li Aiqun,Miao Changqing.BP neural network’s application to cable damage identification of long span cable-stayed bridge [J]. China Civil Engineering Journal,2006,39(5):72-84.(in Chinese)
[3] Salawu O S.Detection of structural damage through changes in frequency:a review [J].Engineering Structures,1997,19(9):718-723.
[4] Ko J M,Sun Z G,Ni Y Q.Multi-stage identification scheme for detecting damage in cable-stayed Kap Shui Mun Bridge[J].Engineering Structures,2002,24:857-868.
[5] 续秀忠,华宏星,陈兆能.基于环境激励的模态参数辨识方法综述[J].振动与冲击,2002,21(3):2-5.
  Xu Xiuzhong,Hua Hongxing,Chen Zhaoneng.Review of modal identification method based on ambient excitation [J]. Journal of Vibration and Shock,2002,21(3):2-5.(in Chinese)
[6] 王谓季,张阿舟.结构振动特性对故障的敏感性与故障诊断[J].南京航空学院学报,1985(4):80-90.
  Wang Weiji,Zhang Azhou.The sensitivity of structural vibration properties to failure and failure diagnosis [J].Journal of Nanjing University of Aeronautics & Astronautics,1985(4):80-90.(in Chinese)
[7] Yang Jie,Li Aiqun.PAF:the grope for integrated diagnosing method[C] //Liu W,Yuan F G,Chang P C.Proceedings of the Third International Conference on Earthquake Engineering.Nanjing:Intellectual Property Publishing House,2004:654-656.
[8] 任若恩,王惠文.多元统计数据分析理论、方法、实例[M].北京:国防工业出版社,1997.
[9] Fang Lungang,Chen Qian,Yang Jie.Application of principal component analysis and kernel density estimation in structural damage detection [C] //Proceedings of COMADEM.Birmingham,UK,COMADEM International,2002:377-385.
[10] 傅志方,华宏星.模态分析理论与应用[M].上海:上海交通大学出版社,2000.

相似文献/References:

[1]满洪高,李乔,张育智.斜拉桥索梁锚固结构疲劳试验模型设计优化[J].东南大学学报(自然科学版),2007,37(2):301.[doi:10.3969/j.issn.1001-0505.2007.02.023]
 Man Honggao,Li Qiao,Zhang Yuzhi.Design optimization of fatigue test model for the cable-girder anchorage zone of steel cable-stayed bridges[J].Journal of Southeast University (Natural Science Edition),2007,37(4):301.[doi:10.3969/j.issn.1001-0505.2007.02.023]
[2]李枝军,李爱群,缪长青,等.运营状态下南京长江二桥拉索索力测试与分析[J].东南大学学报(自然科学版),2007,37(6):1057.[doi:10.3969/j.issn.1001-0505.2007.06.023]
 Li Zhijun,Li Aiqun,Miao Changqing,et al.Measurement and analysis of cable tension in the second Nanjing Yangtze River Bridge under running condition[J].Journal of Southeast University (Natural Science Edition),2007,37(4):1057.[doi:10.3969/j.issn.1001-0505.2007.06.023]
[3]王斐峰,叶见曙,邓学钧.滨州黄河大桥主梁边箱模型试验[J].东南大学学报(自然科学版),2005,35(6):920.[doi:10.3969/j.issn.1001-0505.2005.06.020]
 Wang Feifeng,Ye Jianshu,Deng Xuejun.Experimental on side boxes model of Binzhou Yellow River Bridge[J].Journal of Southeast University (Natural Science Edition),2005,35(4):920.[doi:10.3969/j.issn.1001-0505.2005.06.020]
[4]丁幼亮,李爱群,韩晓林,等.润扬大桥斜拉桥结构安全评估的有限元建模与修正[J].东南大学学报(自然科学版),2006,36(1):92.[doi:10.3969/j.issn.1001-0505.2006.01.019]
 Ding Youliang,Li Aiqun,Han Xiaolin,et al.Finite element modeling and updating of safety evaluation for Runyang cable-stayed bridge[J].Journal of Southeast University (Natural Science Edition),2006,36(4):92.[doi:10.3969/j.issn.1001-0505.2006.01.019]
[5]汪昕,吕志涛.斜向索力下钢-混凝土组合索塔锚固区荷载传递与分配关系分析[J].东南大学学报(自然科学版),2006,36(4):585.[doi:10.3969/j.issn.1001-0505.2006.04.019]
 Wang Xin,Lü Zhitao.Analysis of load transferring and distribution in anchorage zone of steel-concrete composite pylon under inclined cable forces[J].Journal of Southeast University (Natural Science Edition),2006,36(4):585.[doi:10.3969/j.issn.1001-0505.2006.04.019]
[6]毛海军,孙庆鸿,陈南,等.基于分布质量的Riccati传递矩阵法模型与轴系频响函数计算方法研究[J].东南大学学报(自然科学版),2000,30(6):34.[doi:10.3969/j.issn.1001-0505.2000.06.008]
 Mao Haijun,Sun Qinghong,Chen Nan,et al.The Model Based on Continuous Mass Riccati Transfer Matrix Method and Research of the Calculation Method of Frequency Response Function about the Spindle System[J].Journal of Southeast University (Natural Science Edition),2000,30(4):34.[doi:10.3969/j.issn.1001-0505.2000.06.008]
[7]李爱群,丁幼亮,费庆国,等.润扬大桥斜拉桥模态频率识别的环境变异性[J].东南大学学报(自然科学版),2007,37(2):245.[doi:10.3969/j.issn.1001-0505.2007.02.013]
 Li Aiqun,Ding Youliang,Fei Qingguo,et al.Environmental variability in modal frequency identification of Runyang Cable-Stayed Bridge[J].Journal of Southeast University (Natural Science Edition),2007,37(4):245.[doi:10.3969/j.issn.1001-0505.2007.02.013]
[8]张恒平,猪股俊司,青木(彳散)彦.混凝土斜拉桥用悬臂法施工的徐变分析[J].东南大学学报(自然科学版),1988,18(1):105.[doi:10.3969/j.issn.1001-0505.1988.01.012]
 Zhang Hengping (Departement of Civil Engineering) Shunji Inomata Tetsuhiko Aoki (Aizhi Institute of Technology,Japan).Creep Analysis for Cable Stayed Concrete Bridge during Cantilever-Construction[J].Journal of Southeast University (Natural Science Edition),1988,18(4):105.[doi:10.3969/j.issn.1001-0505.1988.01.012]
[9]丁幼亮,李爱群,缪长青.面向结构安全评估的大跨斜拉桥基准有限元模型[J].东南大学学报(自然科学版),2007,37(2):261.[doi:10.3969/j.issn.1001-0505.2007.02.015]
 Ding Youliang,Li Aiqun,Miao Changqing.Structural-safety-evaluation-oriented baseline finite element model of long-span cable-stayed bridge[J].Journal of Southeast University (Natural Science Edition),2007,37(4):261.[doi:10.3969/j.issn.1001-0505.2007.02.015]
[10]李建慧,李爱群,缪长青,等.润扬大桥修正斜拉索力的基准有限元模型[J].东南大学学报(自然科学版),2007,37(2):266.[doi:10.3969/j.issn.1001-0505.2007.02.016]
 Li Jianhui,Li Aiqun,Miao Changqing,et al.Baseline FE model to revise cable forces in Runyang Cable-Stayed Bridge[J].Journal of Southeast University (Natural Science Edition),2007,37(4):266.[doi:10.3969/j.issn.1001-0505.2007.02.016]

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(50378017)、南航青年科研基金资助项目(Y0513-013).
作者简介: 杨杰(1976—),男,博士生,讲师, yangjie@nuaa.edu.cn; 李爱群(联系人),男,博士,教授,博士生导师,aiqunli@sina.com.
更新日期/Last Update: 2006-07-20