한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제19권11호
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  • Pages.1214-1221
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  • 2009
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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CNC 자동선반 고속 스핀들의 밸런싱에 관한 연구

A Study on Balancing of High-speed Spindle of CNC Automatic Lathe

  • 김태종 (부산대학교 기계기술연구원) ;
  • 구자함 (부산대학교 기계기술연구원) ;
  • 이시복 (부산대학교 기계공학부) ;
  • 김문생 (부산대학교 기계공학부)
  • 발행 : 2009.11.20
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초록

A high-speed spindle can be very sensitive to rotating mass unbalance which has harmful effect on many machine tools. Therefore, the balancing procedure to reduce vibration in rotating system is certainly needed for all high-speed spindles. So, balancing procedure was performed with a spindle-bearing system for CNC automatic lathe by using numerical procedure. The spindle is supported by the angular contact ball bearings and the motor rotor is fixed at the middle of spindle. The spindle-bearing system has been investigated using combined methodologies of finite elements and transfer matrices. The balancing was performed through influence coefficient method and the comparison was made by whirl responses between before balancing and after balancing. As a result, balancing of simple spindle model reduced whirl orbit magnitude in case of a completely assembled spindle model.

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참고문헌

  1. Bishop, R. E. D. and Gladwell, G. M. L., 1959, 'The Vibration and Balancing of an Unbalance Flexible Rotor,' Journal of Mechanical Engineering for Science 1, pp. 66-77 https://doi.org/10.1243/JMES_JOUR_1959_001_010_02
  2. Lund, J. W. and Tonnesen, J., 1972, 'Analyses and Experiments on Multiplane Balancing of a Flexible Rotor,' Journal of Engineering for Industry, Transactions of the ASME, Vol. 94, pp. 233-242 https://doi.org/10.1115/1.3449906
  3. Goodman, T. P., 1964, 'A Least Squares Method for Computing Balance Correction Masses,' Journal of Engineering for Industry, Transactions of the ASME, Vol. 8, pp. 273-279
  4. Rao, J. S., 1996, 'Rotor Dynamics,' New Age International
  5. Moon, J. D., Kim, B. S., Kim, D. H. and Lee, S. H., 2005, 'A Study on the Active Balancing Device for Spindle System of Machine Tools,' Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 15, No. 3, pp. 297-305 https://doi.org/10.5050/KSNVN.2005.15.3.297
  6. Ruhl, R. L. and Booker, J. F., 1972, 'A Finite Element Model for Distributed Parameter Turborotor Systems,' Journal of Engineering for Industry, Transactions of the ASME, Feb., pp. 126-132
  7. Yee, E. K. L. and Tsuei, Y. G., 1990, 'Transient Response by Component Modal Synthesis Method,' Journal of Vibration and Acoustics, Transactions of the ASME, Vol. 112, pp. 21-25 https://doi.org/10.1115/1.2910349
  8. Nelson, H. D. and Meacham, W. L., 1983, 'Nonlinear Analysis of Rotor-bearing Systems Using Component Mode Synthesis,' Journal of Engineering for Power, Transactions of the ASME, Vol. 105, pp. 606-614
  9. Guyan, R. J., 1965, 'Reduction of Stiffness and Mass Matrices,' American Institute of Aeronautics and Astronautics Journal, Vol. 3, No. 2, p. 380 https://doi.org/10.2514/3.2874
  10. Nelson, H. D. and McVaugh. J. M., 1976, 'The Dynamics of Rotor-bearing Systems Using Finite Elements,' J. Eng. For Industry, Transactions of the ASME, May, pp. 593-600
  11. Nelson, H. D., 1980, 'A Finite Rotating Shaft Element Using Timoshenko Beam Theory,' Journal of Mechanical Design, Vol. 102, pp. 793-803 https://doi.org/10.1115/1.3254824
  12. Ozguven, H. N. and Ozkan, Z. L., 1984, 'Whirl Speeds and Unbalance Response of Mechanical Bearing Rotors Using Finite Elements,' J. of Vibration, Acoustics, and Reliability in Design, Vol. 106, pp. 72-79 https://doi.org/10.1115/1.3269158
  13. Rahman, B. S. and Lieu, D. K., 1991, 'The Origin of Permanent Magnet Induced Vibration in Electric Machines,' J. of Vibration and Acoustics, Vol. 113, p. 476 https://doi.org/10.1115/1.2930211
  14. Houbolt, J. C., 1950, 'A Recurrence Matrix Solution for the Dynamic Response of Elastic Aircraft,' Journal of the Aeronautical Sciences, Vol.17, pp. 540-550 https://doi.org/10.2514/8.1722
  15. Subbiah, R. and Kumar, A. S., 1988, 'Transient Dynamic Analysis of Rotors Using the Combined Methodologies of Finite Elements and Transfer Matrix,' Journal of Applied Mechanics, Trans. ASME, Vol. 55, pp. 448-452 https://doi.org/10.1115/1.3173697
  16. Kumar, A. S. and Sankar, T. S., 1986, 'A New Transfer Matrix Method for Response Analysis of Large Dynamic Systems,' Computer and Structures, Vol. 23, No. 4, pp. 545-552 https://doi.org/10.1016/0045-7949(86)90097-0
  17. Cao, Y., 2006, 'Modeling of High-speed Machine Tool Spindle Systems,' Ph. D. Thesis, The University of British Columbia
  18. Wang, K. F., Shin, Y. C. and Chen, C. H., 1991, 'On the Natural frequencies of High-speed Spindles with Angular Contact 'Proc. Inst. Mech. Eng., Part C: J. Mech. Eng. Sci., 205, Issue C3 pp. 147-154 https://doi.org/10.1243/PIME_PROC_1991_205_105_02
  19. Shin, Y. C., 1992, 'Bearing Nonlinearity and Stability Analysis in High Speed Machining,' ASME, J. Eng. Sci. Ind., Vol. 114, No. 1, pp. 23-30
  20. ISO 1940/1 'Mechanical Vibration – Balance Quality Requirements of Rigid Rotors'