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A pseudo-force iterative method with separate scale factors for dynamic analysis of structures with non-proportional damping

Title
A pseudo-force iterative method with separate scale factors for dynamic analysis of structures with non-proportional damping
Author
조영상
Keywords
Coupling system; Iterative method; Non-proportional damping; Pseudo-force; Seismic structural analysis
Issue Date
2003-02
Publisher
JOHN WILEY & SONS LTD
Citation
Earthquake Engineering and Structural Dynamics V.32, No.2, Page.329-337
Abstract
Dynamic equilibrium equations of structural systems with non-proportional damping are coupled through the damping terms. Such coupling invalidates application of the classical modal superposition method. In this paper, a mode-superposition pseudo-force method is proposed. The Coupled equilibrium equations are solved by an iterative process in which the coupling terms are treated as pseudo-forces, A scale factor for each mode of the system is obtained by optimizing the iteration convergence. Through these uniquely solved scale factors. the modified modal equations not only converge much faster but also yield results with higher accuracy. A proof of the convergence of the iterative process is also presented. Copyright (C) 2002 John Wiley Sons, Ltd.
URI
https://onlinelibrary.wiley.com/doi/abs/10.1002%2Feqe.234?https://repository.hanyang.ac.kr/handle/20.500.11754/154976
ISSN
00988847
DOI
10.1002/eqe.234
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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