Sound radiation due to rapid deformation of an impacted plate

Publisher Website
Google Scholar
Abstract
Sound radiation due to forced deformation of an impacted plate was investigated. An initial sound pressure pulse due to rapid local deformation of a plate was generated before the radiation from natural modes of the plate occurred. On the axis of impact, near the plate, a distinct pressure pulse is observed to reproduce the velocity waveform of the plate at the opposite side of the impact point. Data from experiments involving impact of spheres on plates differing in size and material properties are presented to show the plate behavior and the radiated sound pressure. Theoretical results were obtained from an analytical model in which impulsive acceleration of a plate with Gaussian spatial distribution is convoluted with the acceleration-time history of the actual impact. Theoretical results for the on-axis pressure are compared with the experimental results.

This publication has 0 references indexed in Scilit: