In this paper the vibration of a spinning cylindrical shell made of functional graded material is investigated. After a brief introduction of FG materials, by employing higher order theory for shell deformation, constitutive relationships are derived. Next, governing differential equation of spinning cylindrical shell is obtained through utilizing energy method and Hamilton’s principle. Making ...

A linearized model of prestressed elastic body vibrations is described in terms the nonsymmetric Piola stress tensor, and a weak statement original problem given. With help Lagrange variational principle, we construct steady axisymmetric oscillations thin-walled (shell-like) cylinder with variable material properties presence an inhomogeneous prestress field. The motion equations, essential nat...

Based on 3-D elasticity approach, differential quadrature method (DQM) in axial direction is adopted along with Globalized Nelder–Mead (GNM) algorithm to optimize the stacking sequence of a laminated cylindrical shell. The anisotropic cylindrical shell has finite length with simply supported boundary conditions. The elasticity approach, combining the state space method and DQM is used to obtain...

We develop a variational method for the solution of spectral problem free axially symmetric vibration thin-walled conic shell with vertex. The procedure construction systems basis functions approximation displacements is based on account formal structure fundamental system integrals original equations established as result asymptotic integration singularly perturbed regular singular point. pres...

AWE has had an active laser experimental program studying the physics of compressible turbulent mix for many years. Here we report on progress using the HELEN and OMEGA laser facilities. Recent work on HELEN has centred around obtaining well characterised data on shock-induced mixing at a foam-foam interface of varying roughness. A thin, opaque tracer layer is used as a radiographic diagnostic ...

In this paper, free and forced vibration of simply-supported Single-walled carbon nanotube is investigated under the moving nanoparticle by considering nonlocal cylindrical shell model. To validate the theoretical results, modal analysis of nanotube is conducted using ANSYS commercial software. Excellent agreement is exhibited between the results of two different methods. Furthermore, the dynam...

A single-walled carbon nanotube (SW-CNT) is a nano scale tube formed by a cylindrical shell of single atomic layer of carbon atoms. Nanotubes have diameter of a few nm and length up to 100μm so that they form extremely thin wires. The atomic structure of SWCNT can be formed by wrapping a stripe of single atomic layer of graphite sheet along a certain direction, and this direction determines the...

A number of gas turbine engine components, in particular, combustion chamber flame tube hoods, jet nozzles, afterburner chambers and some elements the power body can be considered as thin-walled shells. Loads which excite vibrations these assemblies are gas-dynamic forces flow pulsation, loads transferred from supports rotation unbalanced rotor, non-stationary flowing by an incoming air stream,...