engleski

ACCURACY IN THE GEOMETRICAL CHARACTERISTICS REDUCTION METHOD OF STEP SHAFT AT DEFLECTION COMPUTING

The contribution deals with the computing method of step shaft deflection in an intended place by using the diameter reduction method. This method is analytically studied on the selected shaft shape at different variants of diameters and individual span lengths, where values of deflection are compared with computed values without using of this reduction. These values were selected as exact, which was verified by numerical computing in PTC Creo Simulate software. In this contribution, the relative percentage errors are graphically interpreted, and it also deals with the creating of limiting conditions for its using. The aim is to point at limiting conditions of using this method, which may not be always met in practice. It also points to possible failures of this method, which is shown in an incorrect dimension of the shaft, influencing the reliability and safety of duty.

Deformation; relative percentage errors; shaft deflection; step shaft

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