Volume 37 Issue 3
Mar.  2011
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Tao Guoquan, Wei Yuchen, Lü mingyun, et al. Modal tests and properties analysis on truss structure of large scale carbon fiber[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(3): 316-319. (in Chinese)
Citation: Tao Guoquan, Wei Yuchen, Lü mingyun, et al. Modal tests and properties analysis on truss structure of large scale carbon fiber[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(3): 316-319. (in Chinese)

Modal tests and properties analysis on truss structure of large scale carbon fiber

  • Received Date: 05 Nov 2010
  • Publish Date: 31 Mar 2011
  • Based on stochastic subspace system identification method,the modal properties of the truss structure of large scale, light weight, high strength, and force bearing type carbon fiber composites were investigated by ambient excitation. On basis of the characteristics of the truss structure itself, three fundamental assumptions were forwarded. In conjunction with the constraint conditions of the truss structure in practical applications, a modal test scheme for the truss of large scale carbon fiber composites was designed. Through detailed analysis of the test results, the characteristics of frequency, damp, and vibration mode were summarized. By hammer impacts test and finite element method, the test results were comparatively analyzed. It is proved that the three fundamental assumptions are reasonable, the test scheme is effective, the analytical results of the test are reliable. The research results are of essential meaning to the design of aerostat structures and their health monitoring.

     

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  • [1] Wilson J C,Liu T.Ambient vibration measurements on a cable-stayed bridge[J].Earthquake Engineering & Structural Dynamics,1991,20(8):723-747 [2] Gao Y,Spencer B F.Damage localization under ambient vibration using changes in flexibility[J].Earthquake Engineering and Engineering Vibration,2002,1(1):136-144 [3] Bernal D,Gunes B.Observer Kalman and subspace identification of the UBC benchmark structural model // Proceedings of the 14th ASCE Engineering Mechanics Conference.Austin: ,2000:21-24 [4] Kaminski P C.The approximate location of damage through the analysis of natural frequencies with artificial neutral networks[J].Proceedings of the Institution of Mechanical Engineers,Part E:Journal of Process Mechanical Engineering,1995,209(E2):117- 123 [5] James G H Ⅲ,Carne T G,Lauffer J P.The natural excitation technique for modal parameter extraction from operating structures .SAND92-1666,1993 [6] Van Overschee P,De Moor B.Subspace identification for linear systems:theory,implementation and applications[M].Dordrecht,Netherlands:Kluwer Academic Publishers,1996 [7] 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):1-5 Xu Xiuzhong,Hua Hongxing,Chen Zhaoneng.Review of modal identification method based on ambient excitation[J].Journal of Vibration and Shock,2002,21(3):1-5(in Chinese) [8] 肖祥,任伟新.实时工作模态参数数据驱动随机子空间识别[J].振动与冲击,2009,28(8):148-153 Xiao Xiang,Ren Weixin.Improved data-driven stochastic subspace identification of online operational modal parameters [J].Journal of Vibration and Shock,2009,28(8):148-153(in Chinese)
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