Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

Gear Macro Geometry Optimization of Rotorcraft Engine Gearbox

회전익기 엔진용 기어박스의 기어 매크로 치형 최적화

  • Choi, Jaehoon (Department of Smart Industrial Machine Tech., Korea Institute of Machinery & Materials) ;
  • Lee, Geunho (Department of Smart Industrial Machine Tech., Korea Institute of Machinery & Materials) ;
  • Sohn, Jonghyeon (Department of Smart Industrial Machine Tech., Korea Institute of Machinery & Materials) ;
  • Moon, Sanggon (Department of Smart Industrial Machine Tech., Korea Institute of Machinery & Materials) ;
  • Kim, Jaeseung (Department of Smart Industrial Machine Tech., Korea Institute of Machinery & Materials) ;
  • Kim, Suchul (Department of Smart Industrial Machine Tech., Korea Institute of Machinery & Materials)
  • 최재훈 (한국기계연구원 스마트산업기계연구실) ;
  • 이근호 (한국기계연구원 스마트산업기계연구실) ;
  • 손종현 (한국기계연구원 스마트산업기계연구실) ;
  • 문상곤 (한국기계연구원 스마트산업기계연구실) ;
  • 김재승 (한국기계연구원 스마트산업기계연구실) ;
  • 김수철 (한국기계연구원 스마트산업기계연구실)
  • Received : 2022.07.13
  • Accepted : 2022.07.27
  • Published : 2022.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The rotorcraft engine gearbox transmits the power generated by the turboshaft engine to the rotor by reducing the rotational speed and increasing the torque. The core of the rotorcraft engine gearbox is lightweight performance, which requires maximum weight reduction within the range that meets various requirements and constraints. Therefore, lightweight design through gear macro geometry optimization is necessary. In this study, gear macro geometry optimization was performed to reduce the weight of a rotorcraft engine gearbox. NSGA-III was used for the optimization, resulting in a combination of the gear ratio and macro geometry that minimizes the weight of the total gear. In addition, the safety factor of the gears satisfied the given conditions.

Keywords

Acknowledgement

본 연구는 국방과학연구소가 지원한 "복합형 고효율/경량화 동력전달장치 기술 개발" 과제(No. UC170031JD)를 위해 수행되었음.

References

  1. Kim, S. C., Moon, S. G., Sohn, J. H., Park, Y. J., Choi, C. H. and Lee, G. H., "Macro geometry optimization of a helical gear pair for mass, efficiency, and transmission error," Mechanism and Machine Theory, Vol. 144, p. 103634, 2020. https://doi.org/10.1016/j.mechmachtheory.2019.103634
  2. Patil, M., Ramkumar, P. and Shankar, K., "Multi-objective optimization of the two-stage helical gearbox with tribological constraints," Mechanism and Machine Theory, Vol. 138, pp. 38 57, 2019.
  3. Miler, D., Loncar, A., Zezelj, D. and Domitran, Z., "Influence of profile shift on the spur gear pair optimization," Mechanism and Machine Theory, Vol. 117, pp. 189 197, 2017.
  4. Choi, C. H., Ahn, H. J., Yu, J. H., Han, J. S., Kim, S. C. and Park, Y. J., "Optimization of gear macro-geometry for reducing gear whine noise in agricultural tractor transmission," Computers and Electronics in Agriculture, Vol. 188, p. 106358, 2021. https://doi.org/10.1016/j.compag.2021.106358
  5. Hofstetter, M., Lechleitner, D., Hirz, M., Gintzel, M. and Schmidhofer, A., "Multi-objective gearbox design optimization for xEV-axle drives under consideration of package restrictions," Forsch. im Ingenieurwesen/Engineering Res., Vol. 82, No. 4, pp. 361 370, 2018.
  6. ISO Standard 6336:2006, Calculation of Load Capacity of Spur and Helical Gears, International Organization for Standardization, Geneva, Switzerland, 2006.
  7. Choi, J. H., Suh, J. H. and Park, N. G., "Optimal Design of Lightweight Two-Speed Transmission of Electric Vehicles," Tribology and Lubricants, Vol. 36, No.2, pp. 96-104. 2020. https://doi.org/10.9725/KTS.2020.36.2.96
  8. Deb, K. and Jain, H., "An Evolutionary Many-Objective Optimization Algorithm Using Reference-Point-Based Nondominated Sorting Approach, Part I: Solving Problems With Box Constraints," IEEE Transactions on Evolutionary Computation, Vol. 18, No. 4, pp. 577-601, 2014. https://doi.org/10.1109/TEVC.2013.2281535