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Strength and Durability Analysis of the Double Planetary Gears

복합유성기어의 강도 및 내구성 해석

  • Received : 2014.09.29
  • Accepted : 2014.10.09
  • Published : 2014.10.31

Abstract

A planetary gear train is more compact and endures greater amounts of transmission power compared to other gear systems. Although planetary gear systems operate in small volumes, they are capable of very high efficiency due to the compact combination of their gears in the planetary gear system. They also have outstanding efficiency of only 3% for power transmission, tantamount to the power loss that occurs in each of the shift stages. Given these advantages, planetary gear systems are used in the driving systems of, which are widely used in automobile transmissions, machine tools, semiconductor equipment, and in other areas in industrial fields. Current structural equipment requires higher efficiency and greater torque levels. According to these needs, we have designed a complex planetary gear system which creates higher levels of torque. In this paper, an evaluation of strength designs for the proposed planetary gear system was conducted to ensure the stability of the gear. In addition, a durability analysis based on Miner's rule was performed using RS B 0095 device.

Keywords

Double planetary gear system;Strength verification;Load distribution;Durability analysis;Miner's cumulative damage rule

References

  1. Xi Wu, Jim Meagher, and Andrew Sommer, "A Differential Planetary Gear Model with Backlash and Teeth Damage", Proceedings of the 29th IMAC A Conference on Structural Dynamics, Vol. 5 : 203-215, 2011
  2. G. Balbayev and Marco Ceccarelli, "Design and Characterization of a New Planetary Gear Box", Proceedings of the Second Conference MeTrApp, Vol. 17 : 91-98, 2013
  3. Maha Karray, Fakher Chaari, Alfonso Fernandez Del Rincon, Fernando Viadoro, and Mohamed Haddar, "An Experimental Investigation of the Dynamic Behavior of Planetary Gear Set", Conference Design and Modeling of Mechanical Systems, Part II : 199-206, 2013
  4. D. S. Kang, M. G. Kong and C. K. Song, "Stress Analysis of the Differential System", KSME, Spring Conference pp. 41-44, 2010
  5. D. S. Kang and C. K. Song, "Profile-shifted Gear in Multi-axial Differential System", The Korean Society for Precision Engineering, Vol. 28, No. 5, pp. 632-637, 2011
  6. Yusun Son, Hyoje Bae, Sunghoon Tak, Qi Zhang, Sungki Lyu, "A study on the prediction and measurement of Transmission Error for high speed gear", Korean Society for Precision Engineering, Vol. 25, No. 12 : pp. 20-26, 2008
  7. Geunho Lee, Hyoung Eui Kim and Bosik Kang, "Development of accelerated life test method for mechanical components using Weibull-IPL(Inverse Power Law) model", KSME, Conference of the KSME(A) : 447-448, 2003
  8. J. P. Hong, Mechanical Design, Kyobo Press, 2008
  9. Agency for Technology and standards, Track Drive Unit for Mini Excavator, RS B 0095 : 2005

Cited by

  1. A Study on Efficiency of Tapered Roller Bearing for an Automatic Transmission vol.17, pp.5, 2018, https://doi.org/10.14775/ksmpe.2018.17.5.030

Acknowledgement

Supported by : 한국산업기술진흥원