Detail publikace

Diagnostics of Circular Sawblade Vibration by Displacement Sensors

VESELÝ, P. KOPECKÝ, Z. HEJMAL, Z. POKORNÝ, P.

Český název

Diagnostics of Circular Sawblade Vibration by Displacement Sensors

Anglický název

Diagnostics of Circular Sawblade Vibration by Displacement Sensors

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

The paper deals with problems of the circular sawblade vibration. In the introductory part, theoretical bases are summarized to determine the form of vibrations and critical and resonant rotational frequency. A diagnostic method is proposed for the direct measurement of amplitudes of a circular sawblade by displacement sensor with the subsequent Fast Fourier Transform (FFT) analysis. This method with the spectral analysis of a signal in the time area makes possible to determine the size and shape of vibration of a circular sawblade with respect to usability/applicability under operational conditions. Unlike standard methods, when the sawblade is excited by external sources, natural vibrations are used such as disk deformations and the dynamic unbalance of a circular sawblade, effects of chucking/gripping and machine vibration and., last but not least, the disk and sawn wood interaction.

Český abstrakt

The paper deals with problems of the circular sawblade vibration. In the introductory part, theoretical bases are summarized to determine the form of vibrations and critical and resonant rotational frequency. A diagnostic method is proposed for the direct measurement of amplitudes of a circular sawblade by displacement sensor with the subsequent Fast Fourier Transform (FFT) analysis. This method with the spectral analysis of a signal in the time area makes possible to determine the size and shape of vibration of a circular sawblade with respect to usability/applicability under operational conditions. Unlike standard methods, when the sawblade is excited by external sources, natural vibrations are used such as disk deformations and the dynamic unbalance of a circular sawblade, effects of chucking/gripping and machine vibration and., last but not least, the disk and sawn wood interaction.

Anglický abstrakt

The paper deals with problems of the circular sawblade vibration. In the introductory part, theoretical bases are summarized to determine the form of vibrations and critical and resonant rotational frequency. A diagnostic method is proposed for the direct measurement of amplitudes of a circular sawblade by displacement sensor with the subsequent Fast Fourier Transform (FFT) analysis. This method with the spectral analysis of a signal in the time area makes possible to determine the size and shape of vibration of a circular sawblade with respect to usability/applicability under operational conditions. Unlike standard methods, when the sawblade is excited by external sources, natural vibrations are used such as disk deformations and the dynamic unbalance of a circular sawblade, effects of chucking/gripping and machine vibration and., last but not least, the disk and sawn wood interaction.

Klíčová slova česky

circular sawblade; critical rotational speed; resonant rotational speed; vibration; Fast Fourier Transform analysis

Klíčová slova anglicky

circular sawblade; critical rotational speed; resonant rotational speed; vibration; Fast Fourier Transform analysis

Rok RIV

2012

Vydáno

01.06.2012

Nakladatel

ZAGREB UNIV, FAC FORESTRY

Místo

SVETOSIMUNSKA 25, ZAGREB, HRVATSKA 10000, CROATIA

ISSN

0012-6772

Ročník

63

Číslo

2

Strany od–do

81–86

Počet stran

6

BIBTEX


@article{BUT93945,
  author="Přemysl {Pokorný},
  title="Diagnostics of Circular Sawblade Vibration by Displacement Sensors",
  year="2012",
  volume="63",
  number="2",
  month="June",
  pages="81--86",
  publisher="ZAGREB UNIV, FAC FORESTRY",
  address="SVETOSIMUNSKA 25, ZAGREB, HRVATSKA 10000, CROATIA",
  issn="0012-6772"
}