Vector-Scalar Characteristics Of Acoustic Field In The Near Zone Of The Vibrating Plate
Characteristics of a vector-scalar noise field of a vibrating plate are received with the use of two approaches. The first - strict theoretical calculation of vibration and acoustic fields, it also depends on physical and geometrical parametres of the plate and environment. In the second, it is assumed that noise is created by set of random sources distributed on a surface of a plate. It is shown that power and spatial-correlation characteristics of noise acoustic field, calculated with the use of two approaches, are identical. The model of random sources simplifies calculations and can be used at designing of vector-scalar receiving systems installed onboard the carrier. In the article experimental characteristics of noise generated by a vibrating plate which are similar to theoretically calculated parametres of a vector-scalar noise acoustic field are presented.