EXPLOITATION OF PSYCHOACOUSTIC VALUES OF STATIONARY SIGNALS FROM GEAR-BOXES

Dušan Kocur - Stanislav Marchevský - Pavol Galajda - Ladislav Mihalčík

   In this paper, a psychoacoustical analysis of car gear-box noise as well as noise generated by shaft-wheel pairs of gear-boxes is presented. An investigation of the possibility of psychoacoustical analysis application as a non-destructive method of diagnostics of car gear-boxes and shaft-wheel pairs of gear boxes was a motivation for this work. The basic psychoacoustic quantities corresponding to tested gear-boxes and shaft-wheel pairs were evaluated by using Toolbox Psychoacoustic. The results obtained by psychoacoustical analysis have been in correlation with the results obtained by subjective evaluation carried out by "factory's sound specialists". This fact indicates that the psychoacoustical analysis could be in many cases a reasonable tool in the field of non-destructive methods of diagnostics of gear-boxes as well as their shaft-wheel pairs.

Keywords: psychoacoustics, psychoacoustical quantities, diagnostics, quality control

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