Life cycle model of bearings and shaft misalignment frequencies of asynchronous motors

Abstract

The target area of the research is the analysis of the mechanical failure of three-phase asynchronous motors, including primarily the assessment of the excitation frequencies caused by bearing and shaft adjustment and the knowledge of the wear process. The field of science is one of the widely studied branches, however, there are parts that do not provide clear (in the case of current signal analysis) guidance on the cycles of bearing wear. The research foundations are partly derived from vibration diagnostics, but the analysis is based on electrical signal testing. Objectives: The design of the wear characteristic fields is the four elements, the outer and inner ring of the bearing, rolling elements, especially running rolling elements and the bearing basket, as well as the analysis of errors resulting from shaft alignment errors. The first sketch of the wear process and setting up step rules, creation of simplification routes, getting to know the user.