Determination of the noise contributions of engine surfaces LMS Engineering Belgium

Format:

Conference/Event

Author/Creator:

van der Linden, P.J.G., author.

Conference Name:

SAE 2001 Noise & Vibration Conference & Exposition (2001-04-30 : Grand Traverse, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

One of the key elements in efforts to minimize the noise emmissionis of engines and other machinery is the knowledge of the main noise radiating surfaces and the relation between measurable surface vibration and the sound pressure.Under the name of Airborne Source Quantification (ASQ), various techniques have been developed to discretize and quantify the source strength, and noise contributions, of vibrating surface patches of machinery or vehicle components. The noise contributions of patches to the sound pressure at specific locations in the sound field or to the total radiated sound power are identified. The source strength of equivalent point sources, the acoustic transfer from the source surface to critical sound field locations and finally the sound pressure contributions of the individual patches are quantified.These techniques are not unique to engine application, but very relevant for engine development. An example is shown for an engine under artificial excitation

Notes:

Vendor supplied data

Publisher Number:

2001-01-1482

Access Restriction:

Restricted for use by site license