A Galerkin method for distributed systems with non-local damping

Y Lei, MI Friswell, S Adhikari

Research output: Contribution to journalArticle (Academic Journal)peer-review

73 Citations (Scopus)

Abstract

In this paper, a non-local damping model including time and spatial hysteresis effects is used for the dynamic analysis of structures consisting of Euler-Bernoulli beams and Kirchoff plates. Unlike ordinary local damping models, the damping force in a non-local model is obtained as a weighted average of the velocity field over the spatial domain, determined by a kernel function based on distance measures. The resulting equation of motion for the beam or plate structures is an integro-partial differential equation, rather than the partial differential equation obtained for a local damping model. Approximate solutions for the complex eigenvalues and modes with non-local damping are obtained using the Galerkin method. Numerical examples demonstrate the efficiency of the proposed method for beam and plate structures with simple boundary conditions, for non-local and non-viscous damping models, and different kernel functions.
Translated title of the contributionA Galerkin method for distributed systems with non-local damping
Original languageEnglish
Pages (from-to)3381 - 3400
Number of pages20
JournalInternational Journal of Solids and Structures
Volume43(11-12)
DOIs
Publication statusPublished - Jun 2006

Bibliographical note

Publisher: Elsevier Ltd

Fingerprint Dive into the research topics of 'A Galerkin method for distributed systems with non-local damping'. Together they form a unique fingerprint.

Cite this