A Technique to Identify the Structure Borne Sound Sources Induced by Powertrain Vibration Behavior

Paper #:
  • 951235

Published:
  • 1995-05-01
Citation:
Lee, J., Yeo, S., and Bang, J., "A Technique to Identify the Structure Borne Sound Sources Induced by Powertrain Vibration Behavior," SAE Technical Paper 951235, 1995, https://doi.org/10.4271/951235.
Pages:
8
Abstract:
Identification of structure borne sound sources induced by the structural vibration of an automotive powertrain has been studied. Based on the principal component analysis which uses singular value decomposition of a matrix consisting of the auto- and cross-spectra, the operating vibrational analysis is performed. The quantitative description of the output power due to intrinsic incoherent source is addressed.The applicability of the technique is tested both numerically and experimentally. First, the coherence analysis is numerically carried out with a simple structure which is modeled as multi-input and single output to identify the structure borne noise generation process. Second, the actual vibrational behavior of a powertrain structure and the interior noise analysis of a car under the running condition are carried out. The technique is shown to be very effective in the identification of the structure borne noise sources.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2007-03-01
Technical Paper / Journal Article
2010-09-28
Training / Education
2010-03-15
Training / Education
2010-03-15
Article
2017-03-13