Main principles and limitations of current order tracking methods

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Author(s): Anders Brandt, Thomas L Lagö, Kjell Ahlin, Jiri Tuma
Title: Main principles and limitations of current order tracking methods
Journal: SOUND AND VIBRATION
Year: 2005
Pagination: 19-22
ISSN: 0022-460X
Publisher: ACOUSTICAL PUBL INC
City: BAY VILLAGE
ISI number: 000228367400005
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Mechanical Engineering (Sektionen för ingenjörsvetenskap - avd. för maskinteknik)
School of Engineering S- 371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/ing/
Language: English
Abstract: Order tracking is a widely used tool for analysis of vibrations generated in vehicle drivetrain components, since many vibrations are related to engine RPMs. In recent years, offline order tracking has become suitable due to enhanced computer speeds. Many methods, some patented, for both online and offline order tracking have been presented over the years. This article reviews some basic ideas behind current methods and compares their main advantages and limitations. Some basic time-frequency concepts and time window effects are reviewed. Questions on suitable tachometers and their number of pulses per revolution are also addressed. The possibility of processing RPM dependent data without tachometers is also discussed.
Subject: Mechanical Engineering\Structural Dynamics
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