Rolling bearing is main part of rotary machine. It is frail section of rotary machine. Its running status affects entire mechanical equipment system performance directly. Vibration acceleration signals of the third finishing mill of Anshan Steel and Iron Group wire plant were collected in this paper. Fourier analysis, power spectrum analysis and wavelet transform were made on collected signals....

Of the 57 basic sentence categories (SC) defined in the HNC theory, action-effect SC is an important one with distinctive features. In the light of the HNC conceptual network, action-effect sentences in the Chinese language arise directly from causative verbs and compelling verbs, and indirectly from general acting verbs, i.e. via the use of the " de(4)" construction. In Chinese-English machine...

The study aims to substantiate the design and parameters of comb-forming device with elastic rods. basic principles methods classical mechanics, mathematical analysis statistics were used in this study. authors proposed a machine rods for sowing cotton on combs. main amount vertical load working body are justified by experimental studies. It is established that diameter 3 mm rod, number 64 piec...

During the SPS high intensity run 2002 with LHC type beam, the breaking of several of the carbon wires in the wire scanners has been observed in their parking position. The observation of large changes in the wire resistivity and thermionic electron emission clearly indicated strong RF heating that was depending on the bunch length. A subsequent analysis in the laboratory, simulating the beam b...

The modelling of a three-phase four-leg four-wire grid-forming inverter in low voltage distribution system 18-bus European Cigré under unbalanced conditions an autonomous network is presented. case study has two types inverters control strategy: (i) to supply all the demand interval intentional interruption and (ii) grid-following integrate photovoltaic renewable energy resources into power sys...