Sound-insulation of ellipsoidal shells

In the introduction of this paper, the importance of the work in the period of the development of new equipment and technology is formulated when optimum constructions are sought not only in terms of resistance or firmness but also imparting additional properties to them. One of the more important properties of the constructions under development is acoustical ones, i.e. constructions that may to reduce to a maximum the sound (noise) entering the environment. The work deals with an analysis of sound insulation properties of ellipsoidal shells, comparing them with the same properties of other forms. Examples for the use of the shells of such forms and their efficiency in the environmental noise reduction are provided