Experimental Study on Noise Reduction Due to Damping Treatments
Report Number: WL-TR-91-3078 Volume II, page EDH-1
Author(s): Okada, Ken, Kanazawa, Junichi
Corporate Author(s): AT&S Tohsho Engineering Co., Ltd., Kobayasi Institute of Physical Research
Date of Publication: 1991-08
Pages: 1
DoD Project: 2401
DoD Task: 240104
Identifier: This paper is part of a conference proceedings. See ADA241312
Abstract:
Recently, a lot of damping material has been used for the control of structure-borne sound in electrical and automobile manufacturing, etc. in Japan. However, the accurate prediction of noise reduction by damping treatments is not easy from the catalogue data only. In this report, the sound radiated from rectangular plates and cubes made of damped steel plates with various loss factors is examined. Sound pressure levels radiated from these testing pieces are measured on the near field and the loss factors of the complex test plates are measured by the free beam testing method. The relation between the sound pressure levels and the loss factors of the test plates is discussed with regard to these different figures of the structures.
Provenance: University of Colorado Colorado Springs, Kraemer Family Library
Author(s): Okada, Ken, Kanazawa, Junichi
Corporate Author(s): AT&S Tohsho Engineering Co., Ltd., Kobayasi Institute of Physical Research
Date of Publication: 1991-08
Pages: 1
DoD Project: 2401
DoD Task: 240104
Identifier: This paper is part of a conference proceedings. See ADA241312
Abstract:
Recently, a lot of damping material has been used for the control of structure-borne sound in electrical and automobile manufacturing, etc. in Japan. However, the accurate prediction of noise reduction by damping treatments is not easy from the catalogue data only. In this report, the sound radiated from rectangular plates and cubes made of damped steel plates with various loss factors is examined. Sound pressure levels radiated from these testing pieces are measured on the near field and the loss factors of the complex test plates are measured by the free beam testing method. The relation between the sound pressure levels and the loss factors of the test plates is discussed with regard to these different figures of the structures.
Provenance: University of Colorado Colorado Springs, Kraemer Family Library
Other options for obtaining this report:
Via the Defense Technical Information Center (DTIC): Identifier: This paper is part of a conference proceedings. Access a record for the conference proceedings, and possibly a pdf download of the report, at DTIC Via National Technical Report Library: This report may be available for download from NTRL. Use the Title from this record to locate the item in DTIC Online Indications of Public Availability No digital image of an index entry indicating public availability is currently available There has been no verification of an indication of public availability from an inside cover statementRelated report(s)
This report is part of the following conference:
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Proceedings of Damping '91: 13-15 February 1991 San Diego, California (EAA-1 through GBC-16)
WL-TR-91-3078 Volume II