In this paper, we give a targeted review of the state of the art in the study of planar elastic
beams in large deformations, also in the presence of geometric nonlinearities. The main …

We investigate complex drill–string dynamics on a novel experimental rig [1], capable of
reproducing all major types of drill–string vibrations. One of the most important features of …

This work addresses the large amplitude nonlinear vibratory behavior of a rotating cantilever
beam, with applications to turbomachinery and turbopropeller blades. The aim of this work is …

In the present work a geometrically non-linear model is presented to study the coupling of
axial and torsional vibrations on a drill-string, which is described as a vertical slender beam …

Stick-slip torsional vibration raising from bit-formation contact is a catastrophic dynamic
phenomenon occurring in deep-water oil and gas drilling systems. The torsional vibrations …

This work presents a study of the oscillations of a vertical slender beam, clamped in its upper
extreme, pinned in its lower one and constrained inside an outer cylinder in its lower portion …

The constant needs of the industry impel the engineering community in seeking of new
concepts and new strategies in order to improve the structural response of structures as well …

In this article, by combining the assumed mode shape method and the Lagrange's
equations, a new and efficient method is introduced to obtain a closed-form finite …

With the large-scale development of wind turbines, large flexible blades bear heavier loads.
In the actual rotating work of blades, the coupling of structural deformation and motion …

When drilling ultra-deep wells with polycrystalline diamond compact (PDC) bits, the
drillstring suffered from severe vibrations that were responsible for the premature failure of …