Dynamic control of vibrations during turning

Authors

  • V. Zaloha Сумський державний університет, м. Суми, Ukraine
  • Ju. Shapoval Сумський державний університет, м. Суми, Ukraine
  • К. Drofa Сумський державний університет, м. Суми, Ukraine
  • D. Krivoruchko Сумський державний університет, м. Суми, Ukraine

DOI:

https://doi.org/10.20535/2521-1943.2017.79.58793

Keywords:

finite element method, modal analysis, turning, weight, roughness, forced vibrations

Abstract

Abstract. Purpose. Identification the effects that lead to a decrease in the vibration amplitude during the dynamic control of the machine tool additional mass location and determination the limits of this method application.
Design/methodology/approach. Study uses high spindle speed machine tool of special design. The experimental measurements of tool, carriage, spindle and base accelerations and displacements were carried out and compared to the results of finite element
modal analysis. Tests concentrated on two structural variants of machine tool that differ with additional mass amount.
Findings. The experimental results confirmed the possibility of decreasing of the relative tool edge vibration amplitude and roughness of the machined surface when changing the additional mass location in the machine tool system. Modal analysis showed that this effect results from the change in structure eigenform. Thus, the decrease in the amplitude of the relative tool edge
displacement is possible by dynamic control of additional mass location with the aim of guaranty the tool edge location in the vibration node. This effect is easier to implement, the greater the spindle speed is used.

References

  1. Mazur, M.P., Vnukov, Yu.M., Dobroskok, V.L., Zaloha, V.O., Novoselov, Yu.K. and Yakubov, F.Ya. (2011), Basic theory of cutting materials: textbook for higher education, [Osnovy teoriyi rizannya materialiv: pidruchnyk dlya vyshchykh navchal'nykh zakladiv], in Mazur, M.P., 2nd (ed.), Novyy Svit, L'viv, Ukraine.
  2. Kudinov, V.A. (1967), Dinamika stankov [Machine dynamics], Mashinostroenie, Moscow, Russia.
  3. Zharkov, I. G. (1986), Vibracii pri obrabotke lezvijnym instrumentom [Vibrations during processing blade tool], Mashinostroenie, St.Peterburg, Russia.
  4. Zaloha, V.A. and Shapoval, Yu.V. (2015), “Effect of spindle speed on the quality of surface finish when turning”, «Mashinobuduvannja Ukraїni ochima molodih: progresivnі іdeї - nauka - virobnictvo» Tezi dopovіdej ХV vseukraїns'koї molodіzhnoї naukovo-tehnіchnoї konferencії, 04-07 listopada 2015, ZhDTU, Zhitomir, PP. 30 – 31.
  5. Kikonin, I.K. (ed.) (1976), Tables of physical quantities. Directory [Tablicy fizicheskih velichin. Spravochnik], Atomyzdat, Moscow, Russia.
  6. Naryshkin, V.N. and Korostashevsksy, R.V. (1984), Rolling bearings: Directory catalog [Podshipniki kachenija: Spravochnik-katalog], Mashinostroenie, Moscow, Russia.
  7. Agilent Tehnologies. “The Fundamentals of Modal Testing”, available at: URL: http://www.modalshop.com/techlibrary/Fundamentals%20of%20Modal%20Testing.pdf
  8. Zaloga, V.O. and Nagornij, V.V. (2014), “Diagnosis of technical condition of machine tools”, Harkіv, NTU “HPІ”, no. 1 (24), PP. 71 – 79.
  9. Nagornij, V.V. (2015), “Controlling the dynamic behavior of metal-processing systems and method for the determination of the resource”, dis. kand. tehn. nauk, Sumi, Ukraine.

Downloads

Published

2017-06-22

How to Cite

[1]
V. Zaloha, J. Shapoval, Drofa К., and D. Krivoruchko, “Dynamic control of vibrations during turning”, Mech. Adv. Technol., no. 1(79), pp. 100–107, Jun. 2017.

Issue

No. 1(79) (2017)

Section

Original study

License

Copyright (c) 2020 Mechanics and Advanced Technologies

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The ownership of copyright remains with the Authors.
 
Authors may use their own material in other publications provided that the Journal is acknowledged as the original place of publication and National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” as the Publisher.

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under CC BY 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work