Browse Publications Technical Papers 891146
1989-05-01

Analyzing Pass-By Noise Using the FFT 891146

Dividing a vehicle pass-by test into a series of short analysis intervals and calculating a spectra for each of these intervals can provide meaningful information to help identify individual noise sources throughout the pass-by test. Due to the continuously changing instantaneous frequency and amplitude of each of the tonal components in pass-by noise data inaccuracies can occur in the spectra calculated in this manner. The questions which are addressed in this report are the selection of the frequency resolution and block size for FFT processing of pass-by test data to provide a power spectrum with acceptable accuracy for noise source identification.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Spectral Analyses in Truck Tire Noise Fields

740608

View Details

TECHNICAL PAPER

The Influence of Mounting Stiffness On Frequencies Measured In a Vibration Test

840480

View Details

TECHNICAL PAPER

An Advanced Numerical Model for Dynamic Simulations of Automotive Belt-Drives

2010-01-1409

View Details

X