Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/2834
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | A Comparison of Near-Field Acoustic Error Sensing Strategies for the Active Control of Harmonic Free Field Sound Radiation |
Author: | Qiu, X. Hansen, C. Li, X. |
Citation: | Journal of Sound and Vibration, 1998; 215(1):81-103 |
Publisher: | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
Issue Date: | 1998 |
ISSN: | 0022-460X 1095-8568 |
Abstract: | A theoretical comparison of a number of near-field acoustic error sensing strategies is undertaken for active control of harmonic free-field sound radiation. Error sensing strategies investigated include the minimization of acoustic potential energy density, acoustic kinetic energy density, total acoustic energy density and mean active sound intensity at a point and the minimization of the sum of each cost function at a number of points in the near field. The error sensing strategies are analyzed for harmonic sound fields radiated by a monopole primary source and a dipole-like pair of primary sources. The control source is a monopole radiating at the same frequency and the criterion used to assess the error sensing strategies is the minimization of the total radiated acoustic power. It was found that the most appropriate near-field acoustic error sensing strategy for the active control of harmonic free-field sound radiation is minimizing the sum of the weighted mean active intensity in the direction normal to the surface surrounding all the primary and control sources. © 1998 Academic Press. |
DOI: | 10.1006/jsvi.1998.1615 |
Published version: | http://dx.doi.org/10.1006/jsvi.1998.1615 |
Appears in Collections: | Aurora harvest 2 Environment Institute publications Mechanical Engineering publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.