64. Measurement of vibrations of rotating elements in a folding machine

K. Ragulskis1, L. Ragulskis2, E. Kibirkštis3, S. V. Augutis4, D. Vainilavičius5, V. Miliūnas6, D. Pauliukaitis7

1Kaunas University of Technology, Kaunas, 44239, Lithuania

2Vytautas Magnus University, Kaunas, 44404, Lithuania

3, 6, 7Kaunas University of Technology, Department of Manufacturing Engineering,
Studentų 56-350, LT-51424, Kaunas, Lithuania

4, 5Kaunas University of Technology, Department of Electronics Engineering,
Studentų 50-456, LT-51369, Kaunas, Lithuania

3Corresponding author

E-mail: 1kazimieras3@hotmail.com, 2l.ragulskis@if.vdu.lt, 3edmundas.kibirkstis@ktu.lt, 4vygantas.augutis@ktu.lt, 5darius.vainilavicius@ktu.edu, 6valdas.miliunas@ktu.lt, 7darius.pauliukaitis@ktu.lt

(Received 10 January 2015; received in revised form 20 February 2015; accepted 15 March 2015)

Abstract. The measurements of vibrations of rollers and their segments in transverse direction to the axis of rotation of folding device were carried out in this work. The displacements of rollers and of their segments originating during the process of rotation in transverse direction to the axis of rotation were determined. Based on experimental results plane strain problem was investigated. Also bending vibrations of the rotating element in a folding machine were investigated. Supplementary stiffness from the static loading caused by centrifugal forces was taken into account. Eigenmodes were calculated. Comparison of experimental and numerical investigations is performed.

Keywords: folding, roller, rotating element, plane strain problem, centrifugal forces, vibrations, eigenmodes, plate bending problem, measurement of displacements, renewal of the roller.

References

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[5]        Sim K., Youn H. J., Oh K. D., Lee H. L., et al. Fold cracking of coated paper: the effect of pulp fiber composition and beating. Nordic Pulp and Paper Research Journal, Vol. 27, Issue 2, 2012, p. 445‑450.

[6]        Bathe K. J. Finite Element Procedures in Engineering Analysis. Prentice-Hall, New Jersey, 1982.

[7]        Zienkiewicz O. C. The Finite Element Method in Engineering Science. Mir, Moscow, 1975, (in Russian).

[8]        Levy S., Wilkinson J. P. D. The Component Element Method in Dynamics with Application to Earthquake and Vehicle Engineering. McGraw-Hill, New York, 1976.

Cite this article

Ragulskis K., Ragulskis L., Kibirkštis E., Augutis S. V., Vainilavičius D., Miliūnas V., Pauliukaitis D. Measurement of vibrations of rotating elements in a folding machine. Journal of Measurements in Engineering, Vol. 3, Issue 1, 2015, p. 9‑16.

 

Journal of Measurements in Engineering. March 2015, Volume 3, Issue 1
© JVE International Ltd. ISSN Print 2335-2124, ISSN Online 2424-4635, Kaunas, Lithuania