@article {Leniowska:2000:1610-1928:405,
title = "Effect of Phase Shifts on the Directivity of Acoustic Plane Sources",
journal = "Acta Acustica united with Acustica",
parent_itemid = "infobike://dav/aaua",
publishercode ="dav",
year = "2000",
volume = "86",
number = "3",
publication date ="2000-05-01T00:00:00",
pages = "405-412",
itemtype = "ARTICLE",
issn = "1610-1928",
url = "https://www.ingentaconnect.com/content/dav/aaua/2000/00000086/00000003/art00003",
author = "Leniowska, Lucyna and Wyrzykowski, Roman",
abstract = "In this paper the problem of obtaining high directivity radiation from vibrating planar circular sources, located at a finite and an infinite rigid baffle, is analysed. It has been assumed that by modifying the radiating surface shape in a special way obtaining a more coherent acoustic
radiation is possible [1, 2]. The phase shift for surface velocity distribution of considered sources has been achieved by an analytical approach. The formulas derived allow to examine such a 'phase correction' effect on directivity of the following acoustic sources: 1. a piston with velocity
distribution selected on the basis of previous investigation [3], which gives high directivity radiation, 2. a free vibrating plate clamped at the edge. It has been found that the 'correction' of the vibration velocity phase improves radiation directivity significantly.",
}