Practical Considerations in Reconstructing the Surface Vibration Using Inverse Numerical Acoustics University of Kentucky

Format:

Book

Conference/Event

Author/Creator:

Martinus, F., author.

Conference Name:

SAE 2003 Noise & Vibration Conference and Exhibition (2003-05-05 : Grand Traverse, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2003

Summary:

This paper explores the use of inverse numerical acoustics to reconstruct the surface vibration of a noise source. Inverse numerical acoustics is mainly used for source identification. This approach uses the measured sound pressure at a set of field points and the Helmholtz integral equation to reconstruct the normal surface velocity. The number of sound pressure measurements is considerably less than the number of surface vibration nodes. A brief guideline on choosing the number and location of the field points to provide an acceptable reproduction of the surface vibration is presented. The effect of adding a few measured velocities to improve the accuracy will also be discussed. Other practical considerations such as the shape of the field point mesh and effect of experimental errors on reconstruction accuracy will be presented. Examples will include a diesel engine and a transmission housing

Notes:

Vendor supplied data

Publisher Number:

2003-01-1456

Access Restriction:

Restricted for use by site license