CONTRIBUTION TO DIAGNOSTICS OF ASYNCHRONOUS MOTORS

Abstract

Asynchronous motors are a frequent power member of electric drives. In engineering practice their reliability is important. Although the available literature indicates a high reliability of these machines, in many applications reliability needs to be monitored and evaluated. A significant role in this process occupies technical diagnostics. Engineering practice knows a considerable amount of diagnostic methods; for our purposes, the important ones are the following: vibration and noise diagnostics, thermodiagnostics, electrodiagnostics, etc. The results of diagnostics can be evaluated in different ways; the present paper demonstrates the use of fuzzy expert systems, in particular it deals with a partial problem related to the application of vibration diagnostics. Based on the measurement of values of vibrations of the experimental stand, its fault has been clearly identified.

Recommended articles

CONTRIBUTION TO MAINTENANCE ISSUES IN COMPANY PRACTICE

HANA OPOCENSKA, MILOS HAMMER
Keywords: maintenance | classification of maintenance | systems of maintenance | preventive maintenance | after-failure maintenance | total production maintenance | reliability centered maintenance

SYSTEM APPROACH TO DETERMINATION OF RESULTING GREEN HOUSE GAS EMISSIONS OF ENGINEERING PRODUCT

KRBALOVA MARIA, BLECHA PETR
Keywords: carbon dioxide emissions | cast iron | Energy Consumption | Life Cycle Assessment

MACHINE TOOL HEALTH AND USAGE MONITORING SYSTEM: AN INTITIAL ANALYSES

LUDEK JANAK, ZDENEK HADAS
Keywords: Machine tools | health monitoring | usage monitoring | HUMS | sensors | reliability | industry 4.0

VIBRATION DIAGNOSTICS OF ROLLING BEARINGS USING THE TIME SERIES ANALYSIS

DAVID KUTALEK, MILOS HAMMER
Keywords: Rolling bearing | vibration diagnostics | time series | decomposition model