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http://dx.doi.org/10.12989/sem.2005.19.5.503

Dynamic stability of a viscoelastically supported sandwich beam  

Ghosh, Ranajay (Theoretical and Applied Mechanics, Cornell University)
Dharmavaram, Sanjay (Department of Mechanical Engineering, Indian Institute of Technology)
Ray, Kumar (Department of Mechanical Engineering, Indian Institute of Technology)
Dash, P. (A.T. - Bidyadharpur Sasam)
Publication Information
Structural Engineering and Mechanics / v.19, no.5, 2005 , pp. 503-517 More about this Journal
Abstract
The parametric dynamic stability of an asymmetric sandwich beam with viscoelastic core on viscoelastic supports at the ends and subjected to an axial pulsating load is investigated. A set of Hill's equations are obtained from the non-dimensional equations of motion by the application of the general Galerkin method. The zones of parametric instability are obtained using Saito-Otomi conditions. The effects of shear parameter, support characteristics, various geometric parameters and excitation force on the zones of instability are investigated.
Keywords
parametric dynamic instability; viscoelastic core; sandwich beam; viscoelastic supports; zone instability; simple and combination resonances;
Citations & Related Records

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