Régis Viguié

TL;DR: In this paper, a nonlinear normal mode (NNM) computation is shown to be possible with limited implementation effort, which paves the way to a practical method for determining the NNMs of nonlinear mechanical systems.

TL;DR: In this paper, a nonlinear tuned vibration absorber (NLTVA) is proposed to mitigate the nonlinear resonance of a mechanical system, which is tailored according to the non-linear restoring force of the primary system.

TL;DR: In this article, the problem of mitigating the vibration of nonlinear mechanical systems using nonlinear dynamical absorbers has been addressed and a qualitative tuning methodology is developed and validated using numerical simulations.

TL;DR: In this article, a nonlinear passive targeted energy transfer to a lightweight attachment can be used to passively control the vibrations of drill strings used in drilling oil and gas wells. But this is performed by means of a non-linear energy sink (NES) which has been shown to be effective in reducing or even completely eliminating self-excited motions in aeroelastic and other systems.

TL;DR: In this paper, a light-weight nonlinear absorber is attached to a nonlinear primary structure and numerical simulations demonstrate that the determination of an adequate functional form may be directly linked to the frequency-energy dependence of the primary structure.