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New Global Curve-Fitting Method Using Frequency Response Function  

Min, Cheon-Hong (Graduate School of Korea Maritime University)
Park, Han-Il (Department of Ocean Engineering, Korea Maritime University)
Bae, Soo-Ryong (Agency of Defence Development)
Jeon, Jae-Jin (Agency of Defence Development)
Publication Information
Journal of Ocean Engineering and Technology / v.23, no.6, 2009 , pp. 82-86 More about this Journal
Abstract
Several damping materials have been employed to reduce the vibration of structures. While it is important to estimate the damping matrix when analyzing damped composite structures using the finite element method (FEM), at present, there is no FEM program that can correctly estimate the damping matrix. In this paper, a new global curve-fitting method is proposed for identifying the system parameters of non-proportional damping structures using a frequency response function. An experimental test for a cantilever beam attached damping material was carried out to verify the performance of the method proposed in this study.
Keywords
Structural vibration; Curve-fitting; Frequency response function; Nonproportional damping; System identification; Experimental modal analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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