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Drvna industrija : Znanstveni časopis za pitanja drvne tehnologije, Vol.68 No.4 Siječanj 2018.

Izvorni znanstveni članak
https://doi.org/10.5552/drind.2017.1739

The Influence of Radial Slots on Dynamic Stability of Thermally Stressed Circular Saw Blade

Miran Merhar   ORCID icon orcid.org/0000-0003-0420-787X ; University of Ljubljana, Biotechnical Faculty, Department of Wood Science and Technology, Ljubljana, Slovenia
Dominika Gornik Bučar ; University of Ljubljana, Biotechnical Faculty, Department of Wood Science and Technology, Ljubljana, Slovenia

Puni tekst: engleski, pdf (639 KB) str. 341-349 preuzimanja: 26* citiraj
APA
Merhar, M., Gornik Bučar, D. (2017). The Influence of Radial Slots on Dynamic Stability of Thermally Stressed Circular Saw Blade. Drvna industrija : Znanstveni časopis za pitanja drvne tehnologije, 68(4). doi:10.5552/drind.2017.1739

Sažetak
The influence of temperature distribution, temperature difference between the rim and centre of the saw blade and the number and size of radial slots on the dynamic stability of the circular saw blade was analysed in this work. The optimum number and size of radial slots for a circular saw blade with a diameter of 300 mm and a thickness of 2.18 mm is determined according to the least favourable temperature distribution and temperature difference. The critical rotational speed and lateral stiffness at the rim of the saw blade are considered as criteria for dynamic stability. According to the mentioned criteria, it was found that the optimum number and length of radial slots is 6 and 30 mm, respectively. In some cases, longer radial slots would further increase the critical rotational speed, but would also greatly decrease the lateral stiffness of the saw blade.

Ključne riječi
circular saw blade; finite element method; radial slots; critical rotational speed; temperature distribution

Hrčak ID: 191945

URI
https://hrcak.srce.hr/191945

[hrvatski]

Posjeta: 41 *