한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제25권5호
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  • Pages.132-139
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  • 2008
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

정특성 및 동특성 해석을 통한 고속세탁기 주축의 형상 최적화

The Shape Optimization of washing Machine Shaft for High-Speed Rotation through Analysis of Static and Dynamic Characteristics

  • 김의수 (국립과학수사연구소) ;
  • 이정민 (부산대학교 대학원 정밀기계공학과) ;
  • 김병민 (부산대학교 기계공학부)
  • 발행 : 2008.05.01
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초록

To meet demand of big capacity and high speed rotation for washing machine, more stress from bending and twisting are complexly loaded onto the shaft supporting the horizontal drum, causing problems in fracture strength and fatigue life. Also, Vibration occurs due to the frequency of the rotating parts. But, shaft has various design factors such as diameter and distance between bearings according to configuration of shaft, the optimal values can't be easily determined. Using a design of experiment (DOE) based on the FEM (Finite Element Method), which has several advantages such as less computing, high accuracy performance and usefulness, this study was performed investigating the interaction effect between the various design factor as well as the main effect of the each design factor under bending, twist and vibration and proposed optimum design using center composition method among response surface derived from regression equation of simulation-based DOE.

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참고문헌

  1. Lim, J. S., Nam, K. Y., Chung, W. J. and Lee, C. M., "Development of 24,000rpm High-Speed Spindle by Statistical Method," Summer conference of KSMTE, pp. 285-290, 2006
  2. Kim, S. J., Bae, M. I., Kim, H. C. and Kim, K. S., "A Study on Design, Manufacturing and Performance Evaluation of Air Bearing Spindle for PCB Drilling," J. of the KSPE, Vol. 23, No. 4, pp. 29-36, 2006
  3. Chung, W. J., Cho, Y. D., Lee, C. M., Jung, D. W. and Song, T. J., "A Study on the Reduction of Unclamping Time by Design of Experiments," J. of the KSMTE, Vol. 15, No. 3, pp. 1-7, 2006
  4. Lee, T. H., Han, S. Y. and Lim, J. K., "Topology Optimization of the Reinforcement for an Automobile Hood using Design Sensitivity Analysis," Key Engineering Materials, Vol. 183, No. 187, pp. 439-444, 2000 https://doi.org/10.4028/www.scientific.net/KEM.183-187.439
  5. Park, B. Y. and Kim, J. G., "Development of High Speed Machine Tool Spindle Regarding Vibration Characteristics," J. of the KSPE, Vol. 9, No. 3, pp. 149-156, 1992
  6. Kim, S. I., Jo, J. W., Lee, W. J. and Lee, Y. H., "Static/Dynamic/Thermal Characteristics Analysis of a High-Speed Spindle System with 50,000rpm," Summer conference of KSMTE, pp. 494-499, 2003
  7. Ha, J. Y., Song, S. H. and Kwon, O. C., "Dynamic Analysis of the High-Speed Spindle Structure for Machining Center," Autumn conference of KSMTE, pp. 40-45, 1996
  8. Kim, E. S., Lee, I. S. and Kim, B. M., "Optimum Design of Washing Machine Flange using Design of Experiment," J. of the KSME, Vol. 31, No. 5, pp. 601-608, 2007 https://doi.org/10.3795/KSME-A.2007.31.5.601
  9. Jeong, S. M., "The latest design of machine," DONGMYEONG INC, pp. 248-250, 1996
  10. Lim, J. S., Chung, W. J., Lee, C. M. and Lee, J. H., "Improvement of a Stiffness for High-Speed Spindle Using the Taguchi Method," J. of the KSPE, Vol. 24, No. 2, pp. 127-133, 2007
  11. Lee, S. B., "Design of experiment on the center of example," ERETEC INC, pp. 13-14, 185-221, 2005
  12. Ha, D. Y., "The Optimum Design of Vacuum Interrupter with Axial Magnetic Field by using FEM and Design of Experiment," Uni. of HY Doctor's thesis, 2002