@article {Ingemansson:1995:1021-643X:45, title = "Noise control: Principles and practices - Part 4", journal = "Noise News International", parent_itemid = "infobike://ince/nni", publishercode ="ince", year = "1995", volume = "3", number = "1", publication date ="1995-03-01T00:00:00", pages = "45-51", itemtype = "ARTICLE", issn = "1021-643X", url = "https://ince.publisher.ingentaconnect.com/content/ince/nni/1995/00000003/00000001/art00002", doi = "doi:10.3397/1.3703013", author = "Ingemansson, Stig", abstract = "This is the fourth of fifteen parts that present illustrations of noise control principles and practices. The illustrations in this article appeared first in a book published in Sweden by the Swedish Work Environment Fund. Illustrations are presented for plates with free edges that radiate less noise, light objects and low wavespeeds that result in less impact noise and reduced noise radiation by damping of plates.", }