The effect of a nonlinear energy sink on the gust response of a wing

• DOI: 10.1016/j.ast.2024.108904
• Publication Date: 2024-01-22T16:44:20Z
• Authors: M.R. Amoozgar; A. Castrichini; S.D. Garvey; M.I. Friswell; J.E. Cooper; R.M. Ajaj
• Keywords: Sink (geography)

In this paper, the potential effectiveness of a nonlinear energy sink (NES) to absorb from wing that is vibrating as result flying in gusty environment investigated. The structural dynamics simulated using rigid airfoil mounted on two linear/nonlinear springs represent bending and torsional stiffness wing. subjected combination gust aerodynamic loads. unsteady lift moment are modelled Wagner's theory. Furthermore, loads obtained by assuming different profiles, e.g. sharp-edged 1-cosine profiles. A sink, which comprises concentrated mass, damper spring, attached wing, its coupled aeroelastic equations integrated numerically determine response To verify developed model, results compared with available literature an excellent agreement observed. highlight adding NES capable reducing oscillation amplitude significantly when parameters chosen accordingly.