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Technical gazette, Vol. 23 No. 5, 2016.

Original scientific paper

https://doi.org/10.17559/TV-20150520103655

Accuracy in the geometrical characteristics reduction method of step shaft at deflection computing

Stanislav Kotšmíd ; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Študentská 26, 960 01 Zvolen, Slovak Republic
Ján Marienčík ; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Študentská 26, 960 01 Zvolen, Slovak Republic
Pavel Beňo orcid id orcid.org/0000-0002-6595-7757 ; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Študentská 26, 960 01 Zvolen, Slovak Republic
Marian Minárik ; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Študentská 26, 960 01 Zvolen, Slovak Republic
Dražan Kozak orcid id orcid.org/0000-0001-5245-4686 ; Mechanical Engineering Faculty in Slavonski Brod, J. J. Strossmayer University of Osijek, Trg Ivane Brlic Mazuranic 2, HR-35000 Slavonski Brod, Croatia
Pejo Konjatić orcid id orcid.org/0000-0002-1516-3027 ; Mechanical Engineering Faculty in Slavonski Brod, J. J. Strossmayer University of Osijek, Trg Ivane Brlic Mazuranic 2, HR-35000 Slavonski Brod, Croatia

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Abstract

The paper 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 this reduction. These values were selected as exact, which was verified by numerical computing in PTC Creo Simulate software. The relative percentage errors are graphically interpreted, and the contribution also deals with the creation of limiting conditions for their use. 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 operation.

Keywords

deformation; errors relative percentage; shaft deflection; step shaft

Hrčak ID:

167493

URI

https://hrcak.srce.hr/167493

Publication date:

13.10.2016.

Article data in other languages: croatian

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