The principle of the operation of the presented magnetic refrigerator is based on the rotary movement of active magnetic regenerators (AMRs) with a magnetocaloric material and on the magnetic field generated by permanent magnets Nd–Fe–B. The first part of the paper presents the development and analysis of the structure for generating the magnetic field and the basic operational principle of the magnetic refrigerator concerned, and the second part gives a description of the development process for certain key elements of the complete magnetic refrigeration system.
COBISS.SI-ID: 11191067
With a view to detecting incipient failures in large-size low-speed rolling bearings, a new multivariate and multiscale statistical monitoring method was developed. The proposed method, which combines the Principal Component Analysis (PCA) multivariate monitoring approach and the Ensemble Empirical Mode Decomposition (EEMD) method which adaptively decomposes signals into various time scales, was called EEMD-based multiscale PCA (EEMD-MSPCA). The efficiency of the developed EEMD-MSPCA method for the task of bearing condition monitoring was verified on a purpose-built test stand.
COBISS.SI-ID: 11450395