Open AccessAppraisal of gear pitting severity by vibration signal analysis
Author(s) -
Attila Gerocs,
Zoltan-Iosif Korka,
A. V. Bloju,
C. R. Sfetcu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/997/1/012042
Subject(s) - vibration , spall , pinion , lubrication , signal (programming language) , structural engineering , engineering , energy (signal processing) , automotive engineering , acoustics , computer science , mechanical engineering , statistics , physics , mathematics , rack , programming language
Gears are mechanical components used to transfer power between two machines and to modify the operating speed. When they are operating at high loads and speeds the gear teeth surfaces are subjected to loads, which, even in proper lubrication conditions, are leading to failures like scuffing, scoring, spalling or pitting. As the vibration of a gearbox is carrying the signature of the gear faults, these deficiencies may be detected by measuring and analysing the vibration signal. In this research, experimental investigations were accomplished in order to evaluate the gear pitting severity by means of vibration signal measurement and analysis. Thus, four pinions with different pitting grades, created by artificial means, where incorporated in a single helical gearbox and tested on an open-energy test rig. The collected vibration measurements have provided the information regarding the pitting severity, supplying information for the assessment of the gears failure stage. For processing the signals a relative new technique was used, namely the Sideband Energy Ratio™ (SER).