Model of virtual balancing of rigid rotors


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Abstract

Rotor imbalances have a significant impact on the level of their vibration and reliability. Reduction of rotor imbalances is achieved through static and dynamic balancing that we propose to accomplish by virtual balancing of rigid rotors in two stages. At the first stage mutual orientation of the rotor parts is calculated to compensate their imbalances and couple unbalance. At the second stage the values of the masses and angular coordinates of two correction weights that allow eliminating the residual imbalance of the rotor are determined. The correction weights are placed in two balancing planes of the rotor. A model of virtual balancing is proposed to implement the balancing stages. The model makes it possible to determine the relative angular positions of the rotor parts, the values of the mass of two correction weights and their angular coordinates in the balancing planes. The effectiveness of using the proposed model was verified by performing calculations using the finite element model (FEM) of the rotor in the ANSYS software package. In the course of the study, data were obtained on the values of vibration velocities on the rotor supports. The results obtained show a significant reduction in the vibration velocities of the supports, amounting to 80% of their initial value.

About the authors

A. I. Khaimovich

Samara National Research University

Author for correspondence.
Email: berill_samara@bk.ru

Doctor of Science (Engineering), Associate Professor, Head of the Department of Engine Production Technology

Russian Federation

M. A. Bolotov

Samara National Research University

Email: maikl.bol@gmail.com
ORCID iD: 0000-0003-2653-0782

Candidate of Science (Engineering), Associate Professor of the Department of Engine Production Technology

Russian Federation

E. Yu. Pechenina

Samara National Research University

Email: ek-ko@list.ru
ORCID iD: 0000-0002-6142-8567

Postgraduate Student of the Department of Engine Production Technology

Russian Federation

References

  1. Il'yankov A.I., Levit M.E. Osnovy sborki aviatsionnykh dvigateley [Aircraft engine assembly basics]. Moscow: Mashinostroenie Publ., 1987. 288 p.
  2. Levit M.E., Royzman V.P. Vibratsiya i uravnoveshivanie rotorov aviadvigateley [Vibration and balancing of aircraft engine rotors]. Moscow: Mashinostroenie Publ., 1970. 172 p.
  3. Levit M.E., Ryzhenkov V.M. Balansirovka detaley i uzlov [Balancing of parts and assemblies]. Moscow: Mashinostroenie Publ., 1986. 248 p.
  4. Gusarov A.A. Balansirovka gibkikh rotorov s raspredelennoy massoy [Balancing of distributed mass-flexible rotors]. Moscow: Nauka Publ., 1974. 144 p.
  5. Gusarov A.A., Delgin E.G. Balansirovka uprugo-deformiruemykh rotorov metodom postanovki balansirovochnykh gruzov na uprugikh elementakh. V sb.: «Kolebaniya i uravnoveshivanie rotora». Moscow: Nauka Publ., 1973. P. 99-103. (In Russ.)
  6. Nikitin A.N. Tekhnologiya sborki dvigateley letatel'nykh apparatov [Aircraft engine assembly technology]. Moscow: Mashinostroenie Publ., 1982. 269 p.
  7. Spravochnik po balansirovke / pod red. M.E. Levita [Balancing reference manual / ed. by M.E. Levit]. Moscow: Mashinostroenie Publ., 1992. 464 p.
  8. Ermakov A.I., Ulanov A.M. Vibratsiya i prochnost' AD i EU. Ch. 1: ucheb. posobie [Vibration and strength of aircraft engines and power plants. Part 1: tutorial]. Samara: Samara State Aerospace University Publ., 2006. 92 p.
  9. Morais T.S., Der Hagopian J., Steffen Jr.V., Mahfoud J. Optimization of unbalance distribution in rotating machinery with localized non linearity. Mechanism and Machine Theory. 2014. V. 72. P. 60-70. doi: 10.1016/j.mechmachtheory.2013.09.012
  10. Xul J., Zheng X., Zhang J., Liu X. Vibration characteristics of unbalance response for motorized spindle system. Procedia Engineering. 2017. V. 174. P. 331-340. doi: 10.1016/j.proeng.2017.01.148
  11. Mujezinovic A., Davidson J.K., Shah J.J. A new mathematical model for geometric tolerances as applied to polygonal faces. Journal of Mechanical Design. 2004. V. 126, Iss. 3. P. 504-518. doi: 10.1115/1.1701881

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