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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 32
Edited by: B.H.V. Topping
Paper XI.4

A Numerical Method for Dynamic Analysis of Linear Structural Systems with Dynamical Modifications

S. Benfratello* and G. Muscolino#

*Department of Structural Engineering and Geotechnics, University of Palermo, Palermo, Italy
#Faculty of Engineering, University of Messina, C. do S. Agoto - Messina, Italy

Full Bibliographic Reference for this paper
S. Benfratello, G. Muscolino, "A Numerical Method for Dynamic Analysis of Linear Structural Systems with Dynamical Modifications", in B.H.V. Topping, (Editor), "Developments in Computational Techniques for Civil Engineering", Civil-Comp Press, Edinburgh, UK, pp 319-324, 1995. doi:10.4203/ccp.32.11.4
The problem of the structural analysis under changes of dynamical parameters is of particular interest. This is due to the fact that often the real structures are different from the predicted ones. In this paper an unconditionally stable step-by-step procedure able to evaluate the deterministic response of linear structures with modifications is presented. This technique overcomes the difficulties connected with the evaluation of the eigenproperties of modified structures by evaluating, by means of a pertubation approach. the transition matrix of the modified structures. An application to a simple real case shows the advantages of the method herein proposed.

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