Combining direct and flanking transmission
DOI link for Combining direct and flanking transmission
Combining direct and flanking transmission book
This chapter looks at general principles of predicting direct and flanking transmission based on the well-established use of statistical energy analysis (SEA) models for predicting sound transmission in buildings. It begins with an overview of the wave approach that considers only bending waves, move on to a wave approach that considers both bending and in-plane waves, and finally look at finite element methods as one example of a numerical method. The wave approach is well-suited to the calculation of transmission coefficients between plates without openings where a wave is incident upon the junction at a certain angle of incidence. The chapter also looks at how measured data can be included within the SEA framework and then uses some examples to illustrate the prediction of direct and flanking transmission. It describes some junctions between plates, or between plates and beams are too complex to model and it may be necessary to measure the coupling loss factor.