Basic Acoustic Principles – Noise and Vibration

This chapter discusses the basic acoustic parameters used throughout this book. This includes information on the speed of sound and vibration in various media, relationships between acoustic power and sound pressure, sound propagation, direct v. reverberant fields, and transmissibility of sound through ship structures. Other parameters are the radiation efficiency of air-backed and water-backed plates and structure/fluid interaction. Finally, noise and vibration units are defined. Unless otherwise noted, the mks system is utilized throughout this text.