Nonstationary Random Critical Seismic Excitations

Iyengar, RN and Manohar, CS (1987) Nonstationary Random Critical Seismic Excitations. In: Journal of Engineering Mechanics, 113 (4). pp. 529-541.

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Abstract

A method is presented to find nonstationary random seismic excitations with a constraint on mean square value such that the response variance of a given linear system is maximized. It is also possible to incorporate the dominant input frequency into the analysis. The excitation is taken to be the product of a deterministic enveloping function and a zero mean Gaussian stationary random process. The power spectral density function of this process is determined such that the response variance is maximized. Numerical results are presented for a single-degree system and an earth embankment modeled as shear beam.

Item Type:	Journal Article
Publication:	Journal of Engineering Mechanics
Publisher:	American Society of Civil Engineers
Additional Information:	Copy right of this article belongs to American Society of Civil Engineers.
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	19 Jan 2010 07:40
Last Modified:	07 Oct 2010 07:26
URI:	http://eprints.iisc.ac.in/id/eprint/21531

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