Machines. Technologies. Materials.
Vol. 19 (2025), Issue 4, pg(s) 126-129

MACHINES

Changes in the mass moment of inertia of the planetary gear mechanism reduced to the axis of the sun gear depending on the ratio between the radii of the sun and planet gears

  • 1 Faculty of Mechanical Engineering, Goce Delcev University, Stip, North Macedonia, Krste Misirkov,10A, 2000, Stip
  • 2 Faculty of Mechanical Engineering, SS. Cyril and Methodius University in Skopje, North Macedonia

Abstract

Direct Planetary gear mechanism normally consists of a single central gear at the center, an internal (ring) gear around the outside, some number of planet gears that go in between and a planet carrier. They are used to reduce or multiply the number of revolutions. For correct selection of the torque of the driving machine, it is necessary to know the moment of inertia of the planetary gear mechanism, which directly depends on the mass moment of inertia of the planetary gear mechanism and the angular acceleration. In this paper is analyzed the impact of the ratio of the radii of the central and planet gears on the mass moment of inertia of the planetary gear mechanism reduced to the axis of the central gear at a constant diameter of the internal gear. The changes in the reduced mass moment of inertia depending on the number of planet gears was also analyzed.

Keywords

References

  1. J.J.Uicker Jr., G.R.Penock., J.E.Shigley, Oxford University Press (2017) Theory of Machines and Mechanisms, 5-th edition
  2. R.Budinas , J.Nissbet., Mc Graw Hill Education (2020) Shigley’s Mechanical Engineering Design
  3. T.Petrovic, T.Ivanov and M.Milosevic, Forsch Ingenieures (2009), A new structure of combined gear trains with high transmission ratios
  4. Y.Chen, Springer China Machine Press (2021) Automotive Transmissions, Design, Theory and Applications
  5. K.Arnaudov., D.Karaivanov, CRC Press, Taylor & Francis Group (2018), Planetary Gear Trains
  6. D.Stamboliev, Ss.Cyril and Methodius University in Skopje, Macedonia ((1976) Prenosnici na vozilata
  7. W.Jiang., Wiley (2019). Analyses and Design of Mechanical Elements.
  8. J.Meriam, L.Kraige., J.Bolton, Wiley (2018) Engineering Mechanics, Volume 2, Dynamics
  9. S.Simeonov, S.Milev, Goce Delcev University Stip (2019), Praktikum po Masinski elementi

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