Browse > Article
http://dx.doi.org/10.5050/KSNVE.2015.25.11.771

Vibration Characteristics of High Speed Rotary Bell Cup  

Sohn, Jung Woo (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Park, Ji Hoon (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Choi, Seung-Bok (Department of Mechanical Engineering, Inha University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.25, no.11, 2015 , pp. 771-778 More about this Journal
Abstract
In this work, vibration characteristics of high speed rotary bell cup for paint atomizer are numerically investigated. New type of bell cup model is proposed and additional corresponding models with design parameter variations for length and diameter are constructed. Dynamic characteristics, such as natural frequencies and corresponding mode shapes, are studied for each model as a first step. To investigate operation stability, critical speed of rotary bell cup is numerically analyzed based on Campbell diagram and separation margin between operating speed and critical speed is identified. Unbalance vibration responses are also investigated with respect to design parameter variation, operating speed and balancing quality grade of G. Then the proper design guideline for stable operation of high speed rotary bell cup for paint atomizer is suggested.
Keywords
Vibration Characteristics; Critical Speed; Unbalance Vibration; Bell Cup; Rotary Atomizer;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 Lefebvre, A. H., 1988, Atomization and Sprays, Hemisphere Publishing Corporation, New York.
2 Kimio, T., Abraham, S. and Kozo, S., 2012, Automotive Painting Technology, Springer Science & Business Media, London.
3 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.
4 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.
5 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.
6 Lee, C., Cha, S. W. and Ho, K. I., 2004, Development of the Rotary Electrostatic Painting Equipment with High Transfer Efficiency, Journal of Fluid Machinery, Vol. 7, No. 6, pp. 7-14.
7 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.   DOI
8 Yang, B. S., 2003, Vibration of Rotating Machinery, Intervision, Seoul.
9 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.   DOI
10 ISO 1940-1, Mechanical Vibration - Balance Quality Requirements of Rigid Rotors - Part 1: Determination of Permissible Residual Unbalance.
11 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.
12 Jeon, S. M., Kwak, H. D., Yoon, S. H. and Kim, J., 2008, Rotordynamic Analysis of a High Thrust Liquid Rocket Engine Turbopump, Journal of The Korean Society for Aeronautical & Space Sciences, Vol. 36, No. 7, pp. 688-694.   DOI