Open AccessTHE FOURTH CENTRAL MOMENT TO ANALYZE THE ACCELERATIONS OF THE AXLE BEARINGS OF ROLLING STOCK
Author(s) -
Vassyl Ravlyuk,
Mykola Ravlyuk,
Mykola Cherniienko,
Oleksandr Chepurnov
Publication year - 2015
Publication title -
zbìrnik naukovih pracʹ ukraïnsʹkoï deržavnoï akademìï zalìzničnogo transportu/zbìrnik naukovih pracʹ
Language(s) - English
Resource type - Journals
eISSN - 2413-3795
pISSN - 1994-7852
DOI - 10.18664/1994-7852.158.2015.63268
Subject(s) - bearing (navigation) , axle , kurtosis , vibration , structural engineering , computer science , field (mathematics) , engineering , mathematics , acoustics , artificial intelligence , physics , statistics , pure mathematics
The article is devoted to the vibration characteristics of one element, namely the rolling bearing andmethod, which is based on both bench and field tests and proven to be effective to identify items of axlebearing. The method is based on static kurtosis parameter, which remains constant for good bearing,irrespective of load and speed, but changes with the development of damage. The extent of damage can beestimated from the distribution of this parameter in the selected frequency intervals. Thus, the evaluation ofbearing condition can be conducted with minimal use of information about its past state. Most other methodsused to detect damage in a significant advantage of the data analysis, so this method could be a significantachievement in the field of detection of defects in the bearings or at least will allow you to create simple andcheap method. Like most other simple methods of damage detection, this method does not allow to defineprecisely the nature of the defect and to obtain such information it is necessary to use more sophisticateddiagnostic methods.