SIMULATION OF ACTIVE NOISE CONTROL IN ENCLOSURES USING DIRECT SOUND FIELD PREDICTION

Provatidis, CG; Mouzakitis, ST; Charalampopoulos, GN

dc.contributor.author	Provatidis, CG	en
dc.contributor.author	Mouzakitis, ST	en
dc.contributor.author	Charalampopoulos, GN	en
dc.date.accessioned	2014-03-01T01:58:58Z
dc.date.available	2014-03-01T01:58:58Z
dc.date.issued	2009	en
dc.identifier.issn	0218-396X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28799
dc.subject	Active noise control	en
dc.subject	sources and sensor locations	en
dc.subject	direct method	en
dc.subject	optimization	en
dc.subject	finite elements	en
dc.subject.classification	Acoustics	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.other	MINIMIZATION	en
dc.subject.other	OPTIMIZATION	en
dc.title	SIMULATION OF ACTIVE NOISE CONTROL IN ENCLOSURES USING DIRECT SOUND FIELD PREDICTION	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	This paper is concerned with the active control of sound fields in enclosures. Specifically, the numerical problem of determining the optimum locations of control sensors and actuators is addressed. A new method for determining the optimum secondary sources strength is proposed, based on the explicit prediction of the sound field, which makes the simulation of realistic acoustical applications feasible, in terms of the enclosure's boundary conditions. The irregular geometry of a car cabin with complex boundary conditions is used in order to demonstrate the application of the new method to a test case where the existing methods cannot theoretically apply without resolving to significant numerical error. The new method of determining the secondary sources strength is combined with a modified genetic and a gradient optimization algorithm so as to locate the optimum positions of active noise control transducers for global sound field control. The overall algorithm, constituting of the method for calculating the secondary sources' strength and the optimization algorithms, is adjusted with computational improvements for better performance.	en
heal.publisher	WORLD SCIENTIFIC PUBL CO PTE LTD	en
heal.journalName	JOURNAL OF COMPUTATIONAL ACOUSTICS	en
dc.identifier.isi	ISI:000264633800006	en
dc.identifier.volume	17	en
dc.identifier.issue	1	en
dc.identifier.spage	83	en
dc.identifier.epage	107	en