On a normal harp, a human's fingers pluck stationary strings.
The stationary viscoelastic string model is now topic in this work.
Studies [22, 25] of the stationary viscous string model (where We = 0 and q 2 = 3 ) show that the loss of solutions arises as the underlying asymptotically derived model is singularly perturbed in q 1 for certain parameter regimes.
For LeY= 0.3 and γ= 0.36, unsteady forcing can convert non-cellular edge-flames into ones containing various characteristics of near- or sub-limit cellular structures, including drifting, splitting and stationary flame strings.
The phase within these standing waves is also non-uniform, except when the string is stationary.
As an example, stationary vibrations of a string under action of a distributed time-periodic load are studied.
In this paper the dynamic interactions between an idealized rotating circular string and a stationary constraint, consisting of a spring, a damper, a mass or a frictional restraint, are discussed.
Such flow is representative of that which occurs in the borehole annulus where the wall of the wellbore is represented by the stationary cylinder, and the drill string or casing is represented by the moving cylinder.
The stationary asymptotic UCM model is a string model whose applicability turns out to be restricted to certain parameter ranges because of occurring singularities (singularly perturbed model).
