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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

Vibration Characteristics Analysis of High Speed Rotary Bell Cup with Different Shapes and Dimensions

형상 및 치수 변화에 따른 고속 회전 벨 컵의 진동 특성 해석

  • Park, Jiong-Min (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Choi, Seung-Bok (Department of Mechanical Engineering, Inha University) ;
  • Sohn, Jung Woo (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
  • Received : 2016.10.05
  • Accepted : 2016.11.23
  • Published : 2016.12.20
Download PDF
⟨ Previous Next ⟩

Abstract

In the present work, vibration analysis of high speed rotary bell cup model for paint atomizer application is carried out through numerical simulation. At first, eight bell cup models, considering four different cup shapes and two different cup diameters, are proposed and corresponding dynamic characteristics are investigated. To evaluate the operating stability, critical speed analysis is conducted using Campbell diagram and separation margin between operating speed and critical speed is identified. Unbalance vibration responses are also studied according to operating speed and balancing quality grade of G. Finally, the stability and adequacy of the proposed bell cup models are discussed for field application.

Keywords

References

  1. Hinze, J. O. and Milborn, H., 1950, Atomization of Liquids by Means of a Rotating Cup, Journal of Applied Mechanics, Vol. 17, No. 2, pp. 145-153.
  2. Dombrowski, N. and Lloyd, T. L., 1974, Atomization of Liquids by Spinning Cups, Chemical Engineering Journal, Vol. 8, No. 1, pp. 63-81. https://doi.org/10.1016/0300-9467(74)80019-5
  3. Lefebvre, A. H., 1988, Atomization and Sprays, Hemisphere Publishing Corporation, New York.
  4. Corbeels, P. L., Senser, D. W. and Lefebvre, A., H., 1992, Atomization Characteristics of a High Speed Rotary Bell Paint Applicator, Atomization and Sprays, Vol. 2, No. 2, pp. 87-99. https://doi.org/10.1615/AtomizSpr.v2.i2.20
  5. Hines, 1996, Electrostatic Atomization and Spray Painting, Journal of Applied Physics, Vol. 37, No. 7, pp. 2730-2736. https://doi.org/10.1063/1.1782112
  6. Im, K. S., Lai, M. C. and Yoon, S. J., 2003, Spray Characteristics on the Electrostatic Rotating Bell Cup, Korean Society of Mechanical Engineers International Journal, Vol. 17, No. 12, pp. 2053-2065.
  7. Cha, S. W., Lee, C. and Ko. Y. S., 2002, Effect of Serrated Disk of Electrostatic Rotary Atomizer on Transfer Characteristics, Clean Technology, Vol. 8, No. 1, pp. 45-51.
  8. Lee, C. and Cha, S. W., 2002, Study on the Development System of Rotary Atomizing Painting Equipment and Its Application, Clean Technology, Vol. 8, No. 2, pp. 101-110.
  9. Lee, C. and Cha, S. W., 2003, Study on the RPM Characteristics of Rotary Atomizer for Various Air Turbine and Nozzle Types, Clean Technology, Vol. 9, No. 4, pp. 163-168.
  10. Park, B. S. and Kim, B. H., 2013, Design of Rotary Atomizer Using Characteristics of Thin Film Flow on Solid Surfaces, Transaction of Korean Society of Mechanical Engineering, A., Vol. 37, No. 12, pp. 1473-1482. https://doi.org/10.3795/KSME-A.2013.37.12.1473
  11. Yang, B. S., 2003, Vibration of Rotating Machinery, Intervision, Seoul.
  12. Hong, D. K., Jung, S. W., Woo, B. C., Koo, D. H. and Ahn, C. W., 2012, Unbalance Response Analysis of Copper Die Casting High Speed Induction Motor, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 22, No. 7, pp. 642-649. https://doi.org/10.5050/KSNVE.2012.22.7.642
  13. ISO 1940-1, Mechanical Vibration - Balance Quality Requirements of Rigid Rotors - Part 1: Determination of Permissible Residual Unbalance.
  14. API Standard 611, 2008, General-purpose Steam Turbines for Petroleum, Chemical and Gas Industry Services, Fifth Edition, American Petroleum Institute, Washington, D.C., U.S.A.
  15. Sohn, J. W., Park, J. H. and Choi, S. B., 2015, Vibration Characteristics of High Speed Rotary Bell Cup, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 25, No. 11, pp. 771-778. https://doi.org/10.5050/KSNVE.2015.25.11.771