Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Shape Optimal Design of the Door Frame of a Microwave Oven to Minimize Its Twisting Deformation

비틀림 변형 최소화를 위한 전자레인지 도어 프레임의 형상 최적설계

  • 이부윤 (계명대학교 기계자동차공학부) ;
  • 구진영 (한국엠에스씨소프트웨어(주))
  • Published : 2006.08.01
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Abstract

When one opens the door of a microwave oven during its operation, twisting deformation of the door occurs, which may cause leakage of microwave through the gap between the door and the front plate. A numerical optimization is implemented to minimize the gap by maximizing twisting stiffness of the door of the oven. Design variables are deformed, which describe the shape of the bead in the horizontal and vertical flanges of the door frame. To minimize the twisting deformation, Two optimal design problems to find shapes of the bead in the flange are established. The problems are solved by a numerical optimization technique, their results being evaluated.

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References

  1. Over The Range Microwave Oven Owner's Manual, 2002, Maytag
  2. Lee, B. Y. and Koo, J. Y., 2005, 'Analysis of Twisting Deformation and Structural Design of the Door Frame of a Microwave Oven to Decrease Leakage of Microwave,' J. of Korean Soc. Precision Eng., Vol. 22, No. 12, pp. 141-148
  3. UL 923-34, Standard for Microwave Cooking Appliances, Users Laboratory
  4. EN 60335-2-25, Standard for Household and Similar Electrical Appliances, European Standard
  5. Lee, B. Y. and Koo, J. Y., 2005, 'Evaluation of Twisting Deformation of the Door Frame of a Microwave Oven by Transient Response Analysis,' Trans of the KSME (A), Vol. 29, No. 9, pp. 1282-1288 https://doi.org/10.3795/KSME-A.2005.29.9.1282
  6. Kim, C. S., Na, J. M., Kim, J. H. and Chung, H. S., 2001, 'Drop Analysis of Micro Wave Mchine with I-DEAS and LS-DYNA,' Technical Paper, Samsung Electronics
  7. LS-DYNA3D, User's Manual, 1999, LSTC
  8. Cho, W. J., Kim, H., Lee, C. S. and Lee, D. R., 2000, 'Drop-Impact Simulation of Micro Wave Oven,' HANPAM 2000 Users Conference in Korea, pp. 61-67
  9. PAM-SYSTEM, Reference Manual, 2002, PAM System International
  10. Son, B. S., 2004, Research on the Finite Element Analysis of the Drop-Impact and Clamping of a Microwave Oven, M.S. Thesis, Keimyung University
  11. Lee, B. Y., Koo, J. Y. and Kim, W. J., 2006, 'Structural Design of the Door Frame of a Microwave Oven to Decrease Its Twisting Deformation Using Dynamic Analysis,' J. of Korean Soc. Precision Eng., (submitted)
  12. ANSYS, User's Manual, Revision 6.2, 2002, ANSYS Inc
  13. Arora, J. S., 1989, Introduction to Optimum Design, McGraw-Hill, New York