116. Measurement of longitudinal vibrations of the rollers in a folding machine

E. Kibirkštis1, V. Miliūnas2, S. Havenko3, K. Ragulskis4, L. Ragulskis5

1, 2Kaunas University of Technology, Department of Manufacturing Engineering,
Studentų 56-350, LT-51424, Kaunas, Lithuania

3Ukrainian Academy of Printing, Podgolosko 19, 79020, Lviv, Ukraine

4Kaunas University of Technology, Kaunas, 44029, Lithuania

5Vytautas Magnus University, Kaunas, 44404, Lithuania

1Corresponding author

E-mail: 1edmundas.kibirkstis@ktu.lt, 2valdas.miliunas@ktu.lt, 3havenko@point.lviv.ua, 4kazimieras3@hotmail.com, 5l.ragulskis@if.vdu.lt

Received 20 January 2017; received in revised form 10 March 2017; accepted 23 March 2017

DOI https://doi.org/10.21595/jme.2017.18375

 

Abstract. In paper folding machines vibrations of rollers and of their segments take place. Thus, it is important to perform measurements of those vibrations and to investigate vibrational processes in those rollers. Measurements are performed by using a laser displacement head of the type “Microtrack LTC 200-100”. Specific positions of rollers and of their segments were pre‑selected. Measurements were performed at those positions and the obtained results were processed and investigated. Vibrational effects taking place in rollers and also in their segments during the process of rotation influence the quality of produced printing materials. Plane strain problem is investigated and supplementary stiffness from the static loading caused by centrifugal forces is taken into account. Eigenmodes of longitudinal vibrations are investigated.

Keywords: experimental setup, measurement of vibrations, folding machine, quality of printing, roller, rotating element, printing products, plane strain, centrifugal forces, longitudinal vibrations, eigenmodes.

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Cite this article

Kibirkštis E., Miliūnas V., Havenko S., Ragulskis K., Ragulskis L. Measurement of longitudinal vibrations of the rollers in a folding machine. Journal of Measurements in Engineering, Vol. 5, Issue 1, 2017, p. 40‑48.

 

Journal of Measurements in Engineering. March 2017, Volume 5, Issue 1

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