期刊文献+

基于环境激励的ERA方法在网架结构振动测试中的应用研究 被引量:4

Eigen-system realization algorithm used in the modal parameter identification of spacial trusses based on ambient excitation
下载PDF
导出
摘要 基于环境激励的结构振动测试的方法中ERA方法是重要的时域分析方法。本文主要是以随机减量法(RD)和NExT两种数据处理方法结合ERA算法,对绥化学院正在建的网架结构的基本模态参数进行测试。通过分析比较得出RD/ERA和NExT/ERA较直接ERA有更高的精度,且实测分析结果与有限元分析结果较吻合。为网架结构在环境激励下用ERA方法测试模态参数提供了实验依据。 Eigen-system realization algorithm is an important time domain method for structural modal parameter identification based on the ambient excitation. The outhors carry out the modal analysis and modal test for the spa- cial truss of Suihua University by using random decrement technique or natural excitation technique for data pro- cessing, then input the eigen-system realization algorithm for solving the modal parameters of the spacial truss. Com- parisons by analysis show that RD/ERA and NExT/ERA have higher accuracy than the direct ERA, and the analy- sis results meet the finite element method results well. This paper provides an experimental basis for using ERA to test the modal parameters of the spacial trusses.
出处 《地震工程与工程振动》 CSCD 北大核心 2013年第4期176-182,共7页 Earthquake Engineering and Engineering Dynamics
基金 中国地震局工程力学研究所基本科研业务费专项(2013B09) 黑龙江省自然科学基金项目(E201245) 黑龙江省博士后科研启动基金项目(LBH-Q10001) 教育部留学回国科研启动基金资助项目
关键词 随机减量法 NExT法 ERA 网架结构 环境激励 模态参数 random decrement technique natural excitation technique eigen-system realization algorithm spacialtruss ambient excitation modal parameter
  • 相关文献

参考文献12

二级参考文献27

  • 1石春香,罗奇峰,施卫星.基于Hilbert-Huang变换方法的结构损伤诊断[J].同济大学学报(自然科学版),2005,33(1):16-20. 被引量:10
  • 2陈常松,田仲初,郑万泔,颜东煌.大跨度混凝土斜拉桥模态试验技术研究[J].土木工程学报,2005,38(10):72-75. 被引量:26
  • 3Juang J N, Pappa R S. A comparative overview of modal testing and system identification for control of structures [J]. Shock and Vibration Digest, 1988, 20(5): 4- 15.
  • 4Juang J N, Pappa R S. An eigensystem realization algorithm (ERA) for modal parameter identification and model reduction [J]. Journal of Guidance Control and Dynamics, 1985, 8(5): 620-627.
  • 5Juang J N, Wright J R. Eigensystem realization algorithm using data correlations (ERA/DC) for modal parameter identification [J]. Control Theory and Advanced Technology, 1988, 4(1): 5- 14.
  • 6Sujathal V, Chandra Kishen. Energy release rate due to friction at Bi-material interface in dams [J]. J. Engineering Mechanics, 2003(7): 793- 800.
  • 7Schoen M P, Chinvorarat S, Kuo C H. Eigensystem realization with modified genetic algorithm for system identification of noise corrupted processes [C]. ASME International Mechanical Engineering Congress and Exposition, Chicago, IL, United states, 2006.
  • 8Juang J N, Pappa R S. Effects of noise on modal parameters identified by the eigensystem realization algorithm [J]. Journal of Guidance Control and Dynamics, 1986, 9(3): 294-303.
  • 9Huang J N, Phan M. Identification of observer/kalman filter markov parameters: theory and experiments journal of guidance [J]. Control and Dynamics, 1993, 16(2): 320-329.
  • 10Phan M, Horta L G, Juang J N. Linear system identification via an asymptotically stable observer [J]. Journal of Optimization Theory and Applications, 1993, 79(1): 59 -86.

共引文献170

同被引文献20

引证文献4

二级引证文献14

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部