Novel tetrachiral honeycomb structures are evaluated for the first time from the vibroacoustic point of view. A numerical method based on Bloch wave approximations for Finite Element models of the unit cells is applied to simulate the pass-stop band characteristics of these cellular solids. Experimental modal analysis and modal densities are measured on honeycomb panels and sandwich plate, and ...

The inversion method was used to test vibroacoustic processes in large-size machines used in opencast mines of rock material. When this method is used, the tested machine is replaced with a set of substitute sources, whose acoustic parameters are determined on the basis of sound pressure levels and phase shift angles of acoustic signals, measured with an array of 24 microphones. This article pr...

Abstract: This paper presents an application of H2 and H∞ gain-scheduled and robust state feedback control for a time-varying vibroacoustic setup whose dynamics is highly sensitive to variation in the ambient temperature. An LPV model is derived for this system using the State-space Model Interpolation of Local Estimates (SMILE) technique. This approach interpolates linear time-invariant models...

The use of Machine Learning (ML) has rapidly spread across several fields applied sciences, having encountered many applications in Structural Dynamics and Vibroacoustic (SD&V). An advantage ML algorithms compared to traditional techniques is that physical phenomena can be modeled using only sampled data from either measurements or simulations. This particularly important SD&V when the model st...