Parametrically excited unidirectional wave propagation in thin beam phononics

Wave attenuation, filtering and guiding is an ongoing topic of scientific research, as there are many opportunities for improvement existing solutions in modern industry. One the recent advancements has been made with use non-reciprocal metamaterials.Certain properties metamaterials have them suitable various engineering fields. In this study, we investigate wave propagation behavior coupled thin beams phononics, due to time-modulation material axial loads. We compare results which interconnected Winkler?s type elastic layers or viscoelastic Pasternak layers. An analytic approach used discover directional band gaps through these systems beams, at relevant excitation frequencies. The proposed framework can be exploited further analysis phononic based on multiple different mediums structural elements modeled higher-order beam theories.