Excitation and Measurement of BSR in Vehicle Seats Lear Technologies L.L.C

Format:

Conference/Event

Author/Creator:

Jay, M., 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:

Buzz, Squeak, and Rattle (BSR) tests are commonly employed in the automotive industry as a diagnostic. The resulting signals are typically analyzed using established (historical) metrics such as A-weighted SPL or stationary loudness (ISO532B). However, due to the non-stationary nature of these signals, traditional metrics often fail to fully describe the signals in question. Compounding the issue is the fact that some specifications state that the test specimen is to produce no objectionable noises' when subjected to representative excitation. This is a very vague and debatable statement that normally cannot be settled by subjective observations alone. Within this paper, sound quality and statistical metrics are employed for several BSR signals acquired during forced response testing of a seat. Results are presented for two different boundary conditions and alternative signal processing tools are presented. Signal processing of non-stationary signals for an unoccupied and biofidelic mannequin-loaded seat are presented and compared

Notes:

Vendor supplied data

Publisher Number:

2001-01-1552

Access Restriction:

Restricted for use by site license