Passive control of parametric instability of layered beams using graphite particle-filled viscoelastic damping layers
Abhay Gupta, Satyajit Panda, Rajidi Shashidhar Reddy
Abstract
The performance of a viscoelastic particulate composite (VEPC) in the passive control of parametric instability of layered beams is investigated. The effective properties of the VEPC layers in the layered beams are first estimated, and then the parametric instability of the layered beams is analyzed by deriving a finite element model. The results reveal significantly improved passive control of parametric instability of the layered beams when the monolithic viscoelastic damping layers are replaced by the present VEPC layers. Therefore, the present VEPC may be a potential damping material for improved passive control of parametric instability of flexible structures.
Topics & Concepts
ViscoelasticityMaterials scienceInstabilityParametric statisticsGraphiteParticle (ecology)Constrained-layer dampingComposite materialStructural engineeringMechanicsVibration controlAcousticsVibrationPhysicsEngineeringMathematicsGeologyStatisticsOceanographyNonlocal and gradient elasticity in micro/nano structuresComposite Structure Analysis and OptimizationDynamics and Control of Mechanical Systems