Specific principles of work area stiffness measurement applied to a modern three-axis milling machine

  • Tomáš Stejskal
  • Jaroslav Melko
  • Adrián Rjabušin
  • Gabriel Fedorko
  • Michal Hatala
  • Vieroslav MolnárEmail author


The paper discusses continuous measurement of the machine working space stiffness. In comparison with the conventional stiffness measurement, this is a specific measurement because the influence of the load velocity on the static output characteristic is also shown. This effect is undesirable in terms of detecting the real stiffness of the machine, but at the same time, it is also a diagnostic indicator as it is—as of now—an unexplored parameter of static stiffness. For example, if the load speed is exceeded by deformation of 5 μm s−1, the stiffness of the machine increases considerably. The stiffness changes from 43 to 84 N μm−1, i.e., it approximately grows to double. In order to eliminate the misrepresentation of the course of stiffness, the load speed was reduced and special evaluation software was applied. The measurement methodology is highly effective in terms of measurement time, and it is suitable for the development of a portable facility measuring machine stiffness.


Stiffness Machine tool Deflection measurement 


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Funding information

This contribution has been supported by research grants: APVV-15-0149 Research of new measuring methods of machine condition, VEGA 1/0403/18, VEGA 1/0437/17, VEGA 1/0063/16, KEGA 012TUKE-4/2019, and KEGA 013TUKE-4/2019.


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Tomáš Stejskal
    • 1
  • Jaroslav Melko
    • 1
  • Adrián Rjabušin
    • 1
  • Gabriel Fedorko
    • 2
  • Michal Hatala
    • 3
  • Vieroslav Molnár
    • 3
    Email author
  1. 1.Faculty of Mechanical EngineeringTechnical University of KosiceKosiceSlovak Republic
  2. 2.Faculty of Mining, Ecology, Process Control and GeotechnologyTechnical University of KosiceKosiceSlovak Republic
  3. 3.Faculty of Manufacturing Technologies of Technical University in Kosice with a seat in PresovPresovSlovak Republic

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