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1 Vibrations in Physical Systems

1 2008

1 Cempel C.

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Inferring the global and partial system condition by means of multidimensional condition monitoring

100%

Cempel C.

2008

tom Vol. 23

79--94

Machines have many faults which evolve during its life (operation). If one observe some number of symptoms during the machine operation it is possible to capture needed fault oriented information. One of the methods to extract fault information from such symptom observation matrix (SOM) is to apply the singular value decomposition (SVD), obtaining in this way the generalized fault symptoms. The problem of this paper is to use the total damage symptom, being a sum of all generalized symptoms, and the first generalized symptom to infer better on machine condition. There was some new software created for this purpose, and some cases of machine condition monitoring have been considered as examples. Considering these it seems to the author, that both generalized symptoms should be used for the inference on machine condition. They are complimentary each other in some way, and should be use together to increase the reliability of diagnostic decision.