  Quiescent filaments are usually affected by internal and/or external
perturbations triggering oscillations of different kinds. In particular,
external large-scale coronal waves can perturb remote quiescent filaments
leading to large-amplitude oscillations. Observational reports have indicated
that the activation time of oscillations coincides with the passage of a
large-scale coronal wavefront through the filament, although the disturbing
wave is not always easily detected. Aiming to contribute to understand how --
and to what extent -- coronal waves are able to excite filament oscillations,
here we modelled with 2.5 MHD simulations a filament floating in a
gravitationally stratified corona disturbed by a coronal shock wave. This
simplified scenario results in a two-coupled oscillation pattern of the
filament which is damped in a few cycles, enabling a detailed analysis. A
parametric study was accomplished varying parameters of the scenario such as
height, size and mass of the filament. An oscillatory analysis reveals a
general tendency where periods of oscillations, amplitudes and damping times
increase with height, whereas filaments of larger radius exhibit shorter
periods and smaller amplitudes. The calculation of forces exerted on the
filament shows that the main restoring force is the magnetic tension.
