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2013 (Vol. 6, Issue: 07)
Article Information:

Shift-Relaxation Combined Approximations Method for Structural Vibration Reanalysis of Near Defective Systems

Shijia Zhao, Tao Xu, Wei Zhang, Yanjuan Hu and Bin Li
Corresponding Author:  Yanjuan Hu 

Key words:  Close frequencies, generalized modal theory, structural modification, vibration system , , ,
Vol. 6 , (07): 1192-1199
Submitted Accepted Published
August 24, 2012 September 19, 2012 July 05, 2013
Abstract:

Structural reanalysis for defective systems and the near defective systems is discussed in this paper. Specially, by a relaxation factor embedded in the Combined Approximations (CA) approach and a frequency shift, the reanalysis problem of near defective systems with close eigenvalues can be transformed into one of defective systems with repeated ones, which is equal to the average of the close ones. Numerical examples show that the proposed method is effective and stable in reanalysis problem of near defective systems.
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  Cite this Reference:
Shijia Zhao, Tao Xu, Wei Zhang, Yanjuan Hu and Bin Li, 2013. Shift-Relaxation Combined Approximations Method for Structural Vibration Reanalysis of Near Defective Systems.  Research Journal of Applied Sciences, Engineering and Technology, 6(07): 1192-1199.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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