Extraction of real modes and physical matrices from modal testing
Wang, Tong, Zhang, Lingmi and Tee, Kong Fah (2011) Extraction of real modes and physical matrices from modal testing. Earthquake Engineering and Engineering Vibration, 10 (2). pp. 219-227. ISSN 1993-503X (online) (doi:10.1007/s11803-011-0060-6)Full text not available from this repository.
A technique to extract real modes from the identified complex modes is presented in this paper, which enables the normalized real mode shapes, modal masses, and full or reduced mass and stiffness matrices to be obtained. The theoretical derivation of the method is provided in detail. An 11-DOF vibration system is used to validate the algorithm, and to analyze the effects of the number of modes utilized and measurement DOFs on the extraction results. Finally, the method is used to extract real modes from both experimental modal analysis and operational modal analysis.
|Uncontrolled Keywords:||modal analysis, complex mode, real mode, normalized mode shape, modal mass|
|Subjects:||T Technology > T Technology (General)|
T Technology > TA Engineering (General). Civil engineering (General)
|School / Department / Research Groups:||School of Engineering|
School of Engineering > Department of Civil Engineering
|Last Modified:||14 Feb 2012 15:12|
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