Abstract: In this paper, the dynamic response of a harmonically forced linear oscillator (LO) strongly coupled to a nonlinear energy sink (NES) is investigated both theoretically and experimentally. The system studied comprises an ...

Abstract: Recent works have studied ground resonance in helicopters under the aging or damage effects. Indeed, blade leadlag stiffness may vary randomly with time and differ from blade to blade. The influence of stiffness dissimilarities ...

Abstract: Recently, it has been demonstrated that a vibroimpact type nonlinear energy sink (VINES) can be used efficiently to mitigate vibration of a linear oscillator (LO) under transient loading. The objective of this paper is to ...

Abstract: The dynamic loads transmitted from the rotor to the airframe are responsible for vibrations, discomfort and alternate stress on components. A new and promising way to minimize vibration is to reduce dynamic loads at their ...