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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 id orcid.org/0000-0003-0420-787X ; Sveučilište u Ljubljani, Biotehnički fakultet, Odjel za znanost o drvu i drvnu tehnologiju, Ljubljana, Slovenija
Dominika Gornik Bučar ; Sveučilište u Ljubljani, Biotehnički fakultet, Odjel za znanost o drvu i drvnu tehnologiju, Ljubljana, Slovenija


Puni tekst: engleski pdf 639 Kb

str. 341-349

preuzimanja: 1.025

citiraj


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

Datum izdavanja:

3.1.2018.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.325 *