Time Domain Holography and Instantaneous Active Intensity for Tracking of Transient Power Radiating Regions on Tyres

Paper #:
  • 990029

Published:
  • 1999-01-13
Citation:
Hald, J., Nielsen, T., and Saemann, E., "Time Domain Holography and Instantaneous Active Intensity for Tracking of Transient Power Radiating Regions on Tyres," SAE Technical Paper 990029, 1999, https://doi.org/10.4271/990029.
Pages:
4
Abstract:
To ensure that vehicles meet the ISO 362 pass - by requirements before they are introduced in the market their transient noise radiation must also be tested under laboratory conditions. The paper describes a Time Domain Holography based method for localization, quantification and ranking of sound generating regions on vehicles under run-up (i.e. non-stationary) conditions. A case study on a tyre illustrates some of the possibilities with the new technique.
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