Drvna industrija, Vol. 66 No. 2, 2015.
Preliminary communication
https://doi.org/10.5552/drind.2015.1316
Comparison of Natural Frequencies Values of Circular Saw Blade Determined by Different Methods
Ján Svoreň
; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Zvolen, Slovak Republic
Ľubomír Javorek
; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Zvolen, Slovak Republic
Adam Droba
; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Zvolen, Slovak Republic
Dušan Paulíny
; Faculty of Environmental and Manufacturing Technology, Technical University in Zvolen, Zvolen, Slovak Republic
Abstract
In most cases high cutting speed is used when cutting wood by circular saw. This results in oscillating of circular saw blade, which may lead to destroying the tool, machine or hurting the operator. The aim of this paper is to show that it is possible to apply any of the methods used in the research as an equivalent method for obtaining the values of natural frequencies of circular saw blade. The article deals with three methods for obtaining the values of natural frequencies. The first method is modal analysis, the second method is the determination of values measured experimentally and the last method calculates the values by Bessel functions. A circular saw blade was used with the diameter of 350 mm and 36 teeth on the blade.
Keywords
circular saw blade; critical rotational speed; natural frequencies; finite element method
Hrčak ID:
140753
URI
Publication date:
6.7.2015.
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