Hybrid adiabatic potentials are considered in the framework of the QCD string model. The einbein field formalism is applied to obtain the large-distance behaviour of adiabatic potentials. The calculated excitation curves are shown to be the result of interplay between potential-type longitudinal and string-type transverse vibrations. The results are compared with recent lattice data.

In this paper, two kinds of vibrations are considered for a composite Timoshenko rotor: longitudinal-torsional vibration and two plane transverse one. The kinetic and potential energies and virtual work due to the gyroscopic effects are calculated and the set of six governing equations and boundary conditions are derived using Hamilton principle. Differential quadrature method (DQM) is used as ...

The effect of the nonlocal parameter on free vibration analysis nano scaled trusses and frames is examined. Accordingly, firstly, axial bending vibrations longitudinal element are formulated. Simple rod Euler-Bernoulli assumptions considered for vibrations, respectively. Finite matrices obtained by applying average weighted residue to equation motion vibration. These combined according freedoms...

The paper investigates the nonlinear modal interaction of longitudinal and flexural vibrations a beam resonator under periodic thermal loading. mode parametric oscillations is investigated conditions internal multiple resonance between some forms free resonator. possibility longitudinal-bending generation in system has been found, frequency slow envelope which essentially depends on parameter d...

This article investigates the longitudinal vibrations of a semi-infinite circular cylindrical elastic shell filled with viscous compressible fluid. It is believed that are excited by suddenly switched on displacement at end. To solve problem, refined equations interacting an internal fluid, previously proposed authors, were taken as main resolving equations. In this case, lateral surfaces consi...