ABSTRACT
This chapter provides the theoretical basis of Statistical Energy Analysis (SEA) and outlines some practical considerations, which must be taken into account when applying SEA to the analysis of practical structures. It discusses the means for describing a vibroacoustic system in a way that is amenable to SEA. The required loss factors for use in SEA calculations for structures must include energy loss at subsystem boundaries as well as loss due to acoustic radiation, and so the loss factors to be used in SEA problems are generally somewhat greater than for the material itself. The chapter provides a description of the calculation procedures that can be used to quantify the various parameters that are needed in order to estimate structural vibration levels and sound pressure levels in enclosed spaces and in free field. It also provides more details on the measurement of SEA parameters and the implementation of SEA models.
