Noise Contribution Analysis at Suspension Interfaces Using Different Force Identification Techniques

Paper #:
  • 2011-01-1600

Published:
  • 2011-05-17
Citation:
Geluk, T., Van der Linden, P., Vige', D., Caudano, M. et al., "Noise Contribution Analysis at Suspension Interfaces Using Different Force Identification Techniques," SAE Technical Paper 2011-01-1600, 2011, https://doi.org/10.4271/2011-01-1600.
Pages:
7
Abstract:
Road-tire induced vibrations are in many vehicles determining the interior noise levels in (semi-) constant speed driving. The understanding of the noise contributions of different connections of the suspension systems to the vehicle is essential in improvement of the isolation capabilities of the suspension- and body-structure. To identify these noise contributions, both the forces acting at the suspension-to-body connections points and the vibro-acoustic transfers from the connection points to the interior microphones are required.In this paper different approaches to identify the forces are compared for their applicability to road noise analysis. First step for the force identification is the full vehicle operational measurement in which target responses (interior noise) and indicator responses (accelerations or other) are measured. Secondly, the operational data is used in different methods for force-identification: matrix inversion based, mount-stiffness based, or parametric force-identification.The choice for each of those methods can be based on a suspension characteristic as the stiffness of the mounts, the available space for sensor instrumentation or other practical limitations.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$28.00
Mail
$28.00
Members save up to 42% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Event
2018-04-10
Technical Paper / Journal Article
2011-05-17
Technical Paper / Journal Article
2011-05-17
Article
2017-07-26
Training / Education
2018-05-21
Technical Paper / Journal Article
2011-05-17