[1A4] S-discriminant power method of machinery condition vibration monitoring and some of its applications
A Sokolova1, F Balitsky1,2 and V Sizarev3
1IMASH RAN, Russia
2Spectrum Engineering, Russia
3JSС NIKIET, Russia
The method of vibration monitoring the technical conditions of machinery on the basis of the previously proposed S-discriminants has shown its high efficiency in detecting the degradation of machine parts of operating complex equipment at the earliest stage. The S-discriminant takes into account the magnitude and number of amplitude outliers (above the preset threshold value) in the current vibration signal in relation to the reference value obtained for the ‘initial’ (good) state of the same unit. The S-discriminant spectrum allows one to see the moment when the equipment begin to set out due to the appearance of a fault, track its development and make a preliminary diagnosis, which can be clarified by using other methods of vibration processing. In the report, the approach is illustrated by the example of vibration monitoring the state of the parts of the mobile neutron reflector ‘PO-3’ of the ‘IBR-2’ research reactor. The described approach is developed for the case when the vibration information for the ‘PO-3’ normal state is unavailable.
