Prediction of Structure Borne Sound of Low Modal Density Structure by Using Sea

Abstract

The SEA method has been developed primarily for analyzing problems in the aerospace engineering field such as the acoustic fatigue of outer-skin and the reliability of electronic equipments due to high frequency vibration in space vehicles during flight. Because of the simplicity of its power balance equation SEA has been recognized as a useful and powerful tool for analyzing structure borne sound, and is used to assess noise in the audible frequency range. Increasing needs for comfort in our living and working environment require the assessment of structure borne noise on a structure containing elements with low and high modal density.