Axisymmetric vibration of an infinite piezolaminated multilayer hollow cylinder made of piezoelectric layers of 6mm class and an isotropic LEMV Linear Elastic Materials with Voids layers is studied. The frequency equations are obtained for the traction free outer surface with continuity conditions at the interfaces. Numerical results are carried out for the inner, middle, and outer hollow piezo...

Abstract The aim of the study is to analyse axisymmetric free vibration layered cylindrical shells filled with a quiescent fluid. fluid assumed be incompressible and inviscid. equations vibrations shell fluid, on longitudinal transverse displacement components are obtained using Love’s first approximation theory. solutions functions in separable form obtain system coupled differential terms fun...

This paper deals with the problem of active vibration control for a flexible axisymmetric membrane. mechanical system is equipped two piezoelectric circular chips where one them works as an actuator, whereas other used sensor. Both are glued on membrane, each side, and centered according to its axis symmetry. The model this obtained from finite element modelling, leading linear state-space mode...

The free vibration of a fluid/structure system consisting of a cylindrical blockage submerged in a liquid enclosed by a cylindrical shell is investigated for the purpose of pipe line transportation monitoring. The wavenumbers are obtained and the reflection and transmission characteristics of these waves at the blockage interfaces are investigated theoretically. Reflection and transmission rati...

Tubular structures are widely used in infrastructure, especially for pipes and marine installations. Corrosion is a key damage type these structures, if undetected may cause structural deficiency or even collapse. This paper investigates the effects of localised corrosion on vibration properties axisymmetric tubular proposes novel baseline-free identification method to overcome fact that differ...