Lubricating oil monitoring has been proven to be an effective method for detecting and diagnosing machinery failures and essential for realizing condition based maintenance. In this paper, mathematical statistics meth...
For purchasing spare parts for machinery products, the general principle, procedure and method are put forward in the paper. Fuzzy theory and method are applied to set up a decisive model for purchasing spare parts. B...
In this paper we studied the fault feature of the generator set and the characteristics of wavelet packet theory for signal de noising. The vibration signal of the generator set in different states is analyzed by usi...
In this paper, the regular characteristic of -wear particles related to fault type of machines based on condition monitoring of reciprocal machinery is discussed. The typical -wear particles spectrum is established ac...
National Natural Science Foundation of China !59775023; Natural Science Research Foundation of Shaanxi Province ! 97G14
The thesis introduces various characteristic wavelet bases used in non-stationary machinery equipment diagnosis, then discusses genetic wavelets and harmonic wavelets and their practical application respectively in fa...
Thermal spraying has reached a status of its own technical discipline in engineering and become an important industrial technology in China. This paper deals with the latest developments of thermal spraying equipment ...
When operating speed or load is changed, or mechanical faults appear in machinery, many dynamic signals coming from running machinery are nonstationary. It is difficult to analyse these kind of signals. Timefrequency(...