Noise Measurements and Characterization of Automotive Dampers

Paper #:
  • 931271

Published:
  • 1993-05-01
Citation:
Cherng, J. and Akin, T., "Noise Measurements and Characterization of Automotive Dampers," SAE Technical Paper 931271, 1993, https://doi.org/10.4271/931271.
Pages:
11
Abstract:
This paper presents the key issues regarding the measurement of damper (shock absorber) noises, including the type of microphones, the locations of microphones, the mini-anechoic chamber design considerations, selection of a shaker, and the observations gathered from conducting damper noise measurements in the Monroe Auto Equipment Company. The characteristics of two typical noises, a mechanical/click noise and a swish noise, generated by the dampers are discussed in detail. In addition, the functional features of a complete digital signal processing system, including A/D (analog-to-digital) and D/A (digital-to-analog) converters for the damper's noise and vibration measurements, are discussed in the paper.
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