Measurement and Evaluation of Aerodynamic Noise

Paper #:
  • 1999-01-1124

Published:
  • 1999-03-04
Citation:
Iida, N., "Measurement and Evaluation of Aerodynamic Noise," SAE Technical Paper 1999-01-1124, 1999, https://doi.org/10.4271/1999-01-1124.
Author(s):
Affiliated:
Pages:
11
Abstract:
Recently, aerodynamic noise which originates in the flow of the body surroundings is actualized as a main cause of an automobile interior noise when running at high speed, because engine, power train and tire noise have been greatly decreased. Along with it, the measurement technology for the phenomenon elucidation and the evaluation has been demanded to decrease aerodynamic noise.In this paper, typical measurement examples of aerodynamic noise are introduced. These measurement technologies can be classified, and arranged to four types of measurements, which are flow, external noise, transmission psth and interior noise. This paper presents how the advancement of these measurement technologies has contributed to the aerodynamic noise elucidation. Moreover, the latest evaluation method of aerodynamic noise and the trend in the future to the demand of customer's many topics are introduced.
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