Publication detail

Diagnostics of Circular Sawblade Vibration by Displacement Sensors

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

Original Title

Diagnostics of Circular Sawblade Vibration by Displacement Sensors

English Title

Diagnostics of Circular Sawblade Vibration by Displacement Sensors

Type

journal article in Web of Science

Language

en

Original Abstract

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.

English abstract

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.

Keywords

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

RIV year

2012

Released

01.06.2012

Publisher

ZAGREB UNIV, FAC FORESTRY

Location

SVETOSIMUNSKA 25, ZAGREB, HRVATSKA 10000, CROATIA

Pages from

81

Pages to

86

Pages count

6

Documents

BibTex


@article{BUT93945,
  author="Přemysl {Pokorný}",
  title="Diagnostics of Circular Sawblade Vibration by Displacement Sensors",
  annote="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.",
  address="ZAGREB UNIV, FAC FORESTRY",
  chapter="93945",
  institution="ZAGREB UNIV, FAC FORESTRY",
  number="2",
  volume="63",
  year="2012",
  month="june",
  pages="81--86",
  publisher="ZAGREB UNIV, FAC FORESTRY",
  type="journal article in Web of Science"
}