1996-10-01

Wavelet Analysis of In-Cylinder LDV Velocity Measurements 961921

The object of this paper is to present a new way of analyzing in-cylinder velocity measurements. The technique is called Discrete Wavelet Transform (DWT) and it is similar to Fast Fourier Transform (FFT) with one important difference it is possible to obtain both time localized and frequency resolved information.
This paper demonstrates the use of DWT calculations on in-cylinder LDV flow measurements for different combustion geometries in a natural gas converted truck engine. It will furthermore provide some information about how DWT can be used with in-cylinder measurements in the future.

SAE MOBILUS

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

Access SAE MOBILUS »

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

Combustion Chambers for Natural Gas SI Engines Part I: Fluid Flow and Combustion

950469

View Details

TECHNICAL PAPER

The Dynamixer - A Natural-Gas Carburettor System for Lean-Burn Vehicle Engines

901498

View Details

JOURNAL ARTICLE

Development of Representative Regional Delivery Drive Cycles for Heavy-Duty Truck Tractors

2014-01-9024

View Details

X