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Measurement of the Dynamic Transmission Error of Helical Gears by the Accelerometers

가속도계에 의한 헬리컬 기어의 동적 전달오차의 측정

  • 김대식 (강릉대학교 정밀기계공학과) ;
  • 조도현 (강릉대학교 대학원 정밀기계공학과) ;
  • 박찬일 (강릉대학교 정밀기계공학과) ;
  • 최덕기 (서울대학교 기계항공공학부) ;
  • 박찬국 (강릉대학교 정밀기계공학과)
  • Published : 2003.10.01

Abstract

The object of this work is to develop the measurement method of the transmission error of the helical gears. For this purpose, experimental set up is designed by 3D CAD software. It consists of the motor, inverter, powdered brake equipment, torque sensor and helical gearbox. In this study, tangential linear accelerometers were used as the methods for the transmission error measurement. the acceleration signals are transmitted to the signal conditioners through the slip rings and the transmission errors are obtained by a specially designed circuit board. The transmission errors are analyzed in the frequency domain. As a result, The periodicity of the transmission error is confirmed in the mesh frequency and its harmonics. The magnitude of harmonic components is very dependent on the natural frequencies of the gear system. It usually increases with the rotational speed. However, it does not always increase with torque.

Keywords

Dynamic Transmission Error;Helical Gear;Measurement

References

  1. Smith, J.D., and Echevverria-villagomez, J.S., 1990, 'Comparing Encoder and Accelerometer Measurement of Transmission Error or Torsional Vibration,' I. Mech. E., pp. 43-49
  2. Kim, D.S., 2001, 'A study of the Transmission Error Measurement for the Helical Gears System,' M.S. Thesis, Kangnung National University, Korea
  3. Park, C.I., Cho, D.H., 2002, 'Transmission Error Anaysis of the Helical Gears in Consideration of Shaft and Bearing Deformation,' Trans. of KSME. A, Vol. 26, No. 10, pp. 2695-2702 https://doi.org/10.3795/KSME-A.2002.26.12.2695
  4. Park, C.I., Kim, D.S., 2002, 'Transmission Error Anaysis of the Helical Gears for the Elevator,' Trans. of KSME. A, Vol. 26, No. 12, pp. 2695-2702 https://doi.org/10.3795/KSME-A.2002.26.12.2695
  5. Smith, J.D., 1999, Gear Noise and Vibration, Marcel Dekker, Inc.
  6. Harris, S.L., 1958, 'Dynamic Loads on the Teeth of Spur Gears,' Proc. I. Mech. E., Vol. 172, No. 2, pp. 87-112 https://doi.org/10.1243/PIME_PROC_1958_172_017_02
  7. Timms, C., Sharp, R., Hunter, O.R., and Ewing, D.K., 1959, 'Single Flank Gear Tester,' N.E.L. Report No. 227, East Kibride, Glasgow
  8. Gregory, R.W., Harris, S.L., and Munro, R.G., 1963, 'A Method of Measuring Transmission Error in Spur Gears of 1:1 Ratio,' J. Sci. Instrum., Vol. 40, pp. 5-9 https://doi.org/10.1088/0950-7671/40/1/303
  9. Houser, D.R., Blankenship, G.W., 1989, 'Methods for Measuring Gear Transmission Error Under Load and at Operating Speeds,' SAE 891869
  10. Yakhou, K., Bourdon, A. and Play, D. 2000, 'Prediction of Automotive Gearboxes Dynamic Behavior Part A:Experimental Validation of a Global Numerical Model,' Proc. of the 8th International Power Transmission and Gearing Conference, Baltimore, USA, DETC2000/PTG-14428
  11. Kahraman, A. and Blankenship, G.W., 1996, 'Gear Dynamic Experiments Part-I: Characterization of Forced Response,' Proc. of the 7th International Power Transmission and Gearing Conference, San Diego, USA, pp. 373-380
  12. Munro, R.G., 1990, 'A Review of the Theory and Measurement of Gear Transmission Error,' I. Mech. E., pp. 3-10
  13. Welbourn,D.B., July 1979, 'Fundamental Knowledge fo Gear Noise - A Survey,' Proc., Noise & Vib. of Eng. and Trans., I. Mech E., Cranfleld, UK., pp. 9-14