Aeroelastic response of an aircraft wing with mounted engine subjected to time-dependent thrust

In this paper, the aeroelastic response of a wing containing an engine subjected to different types of time-dependent thrust excitations is presented. In order to precisely consider the spanwise and chordwise locations of the engine and the time-dependent follower force in governing equations, derived through Lagrangeʹs method, the generalized function theory is used. Unsteady aerodynamic lift and moment in the time domain are considered in terms of Wagnerʹs function. Numerical simulations of the aeroelastic response to different types of time-dependent thrust excitation and comparisons with the previously published results are supplied. Effects of the engine mass and location and also the type of time-dependent thrust on the wing aeroelastic response are studied and pertinent conclusions are outlined.