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Abstract
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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
Submitted: August 24, 2012
Accepted: September 19, 2012
Published: July 05, 2013 |
Abstract:
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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.
Key words: Close frequencies, generalized modal theory, structural modification, vibration system , , ,
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Cite this Reference:
Shijia Zhao, Tao Xu, Wei Zhang, Yanjuan Hu and Bin Li, . Shift-Relaxation Combined Approximations Method for Structural Vibration Reanalysis of Near Defective Systems. Research Journal of Applied Sciences, Engineering and Technology, (07): 1192-1199.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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