STATISTICAL ANALYSIS OF ROUGHNESS TIMING BELT IN OPERATION USING FULL FACTORIAL METHODS

Abstract

The changes of roughness parameters R-a and R-tm timing belt during the exploitation are shown in this work. The testing of timing belt was done on the measuring device constructed for that purpose at the Faculty of Engineering Sciences in Kragujevac. The testing was conducted on the basis of a predefined plan of the experiment. At the same time parameters of roughness on the apex of the belt tooth, in the space between belt teeth and on the flank of the belt tooth were monitored. Roughness measurements were carried out on a computer-assisted profilometer Talysurf 6. The analysis of change of roughness parameters was done using the full factorial method. The analysis of the results shows that the greatest impact on Ra has the number of teeth of the timing belt, but on Rtm place where it was measured. There are also shown linear regression equations for the roughness parameters in the function of the effective parameters.