전자파 누설 저감을 위한 전자레인지 도어 프레임의 비틀림 변형 해석과 구조 설계

Analysis of Twisting Deformation and Structural Design of the Door Frame of a Microwave Oven to Decrease Leakage of Microwave

  • 이부윤 (계명대학교 기계자동차공학부) ;
  • 구진영 (한국엠에스씨소프트웨어(주))
  • 발행 : 2005.12.01

초록

When one opens the door of a microwave oven during operation, microwave might leak through the clearance of the door. Present research has been motivated by the need to reduce the possible clearance by enhancing torsional stiffness of the door of the microwave oven. Static deformation of the door frame of the oven is analyzed under a door-opening force. On the basis of the topological optimization, the right flange of the door frame is shown to need reinforcing. Several types of reinforcing brackets weldable to the right flange is proposed, and their effects to the stiffness of the door frame are compared and evaluated.

키워드

참고문헌

  1. Lee, B. Y. and Koo, J. Y., 'Evaluation of Twisting Deformation of the Door Frame of a Microwave Oven by Transient Response Analysis,' Trans. Korean Soc. Mech. Engrs. A, 2005 (Submitted)
  2. UL 923, 'Standard for Microwave Cooking Appliances,' Users Laboratory
  3. Kim, C. S., Na, J. M., Kim, J. H. and Chung, H. S., 'Drop Analysis of Micro Wave Machine with I-DEAS and LS-DYNA,' Technical Paper, Samsung Electronics, 2001
  4. LS-DYNA3D, 'Keyword User's Manual,' LSTC, 1999
  5. Cho, W. J., Kim, H., Lee, C. S. and Lee, D. R., 'Drop-Impact Simulation of Micro Wave Oven,' HANPAM 2000 Users Conference in Korea, pp. 61-67, 2000
  6. PAM-SYSTEM, 'Reference Manual,' PAM System International, 2002
  7. Son, B. S., 'Research on the Finite Element Analysis of the Drop-Impact and Clamping of a Microwave Oven,' M.S. Thesis, Keimyung University, 2004
  8. Noh, K. C., 'A Study on the Door Interlock and the Door Opening Force of a Microwave Oven,' M.S. Thesis, Busan University, 1999
  9. ANSYS, 'User's Manual,' Revision 6.2, 2002, ANSYS Inc
  10. Kim, S. D., 'Nonlinear Vibration Analysis of Thin Perforated Sheet with Wire Impact Damping,' Ph.D. Thesis, KAIST, 2003
  11. KS F 2630, 'Doorsets - Static Torsion Test,' 1997
  12. Belegundu, A. D. and Chandrupatla, T. R., 'Optimization Concepts and Applications in Engineering,' Prentice-Hall, New Jersey, 1999