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《Journal of Earthquake Engineering and Engineering Vibration》 2009-01
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Automatic pole selection for broadband modal identification

SUN Xinhui,ZHANG Lingmi(Institute of Vibration Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)  
In the structural dynamics domain,one of the key issues of experimental modal analysis is the selection of the correct modal order and related to this,the selection of valid system poles,corresponding to structural or true modes.Up to now,it has been done manually.It is a tedious work and time consuming iterations,in particular in the case of complex structures or structures with high damping.In this paper,fuzzy clustering is introduced as a tool for automatic selection of structural poles from stabilization charts for broadband modal identification.
【Fund】: 航空科学基金项目(04I52065)
【CateGory Index】: TN911
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