의자 다리 부재에 대한 형상 최적 설계

Shape Optimal Design for the Leg Parts of Chair

  • 강성수 (전주대학교 기계자동차공학과) ;
  • 정영수 (전주대학교 대학원 기계공학과)
  • 투고 : 2011.05.03
  • 심사 : 2011.08.17
  • 발행 : 2011.12.15

초록

In this study, a chair with 5 or 6 legs was designed using the commercial program CATIA V5 in order to efficiently design considering the load conditions. In addition, the stress analysis and shape optimization were carried out using ANSYS Workbench for the chair consisting of stainless steel, aluminum alloys, magnesium alloys and structural steel. As a result, a chair with five legs showed the maximum equivalent stress at the end of the edge of the wheel parts and on the other hand, a chair with six legs showed the maximum equivalent stress at the corner of the connecting parts of the pillar and leg. In addition, the material and the weight was reduced by shape optimization for the chair model with 5 legs and maximum equivalent stress for stainless steel was found that greatly relaxed, compared with that of before shape optimization model.

키워드

참고문헌

  1. In, S., I., 2004, "Analytical Study for the Data Formation of Chair Structure," Transactions of the KSDS, Vol. 17, No. 1, pp. 347-360.
  2. Wee, H., L., 2009, "A Study on Functional and Design Improvements in the Fastening Hardware for Chair Legs," Transactions of the KSDS, Vol. 22, No. 3, pp. 5-13.
  3. Yang, W., H., Park, Y., S., Park, G., J., Park, S., H., and Lee, H., J., 1999, "Frontal and Rear Crash Analyses and Design of a Belt Integrated Seat for Occupant Safety," Transactions of the KSAE, Vol. 7, No. 4, pp. 295-310.
  4. Bae, J., H., Kim, G., S., Ryu, J., C., and Moon, I., H., 2008, "Design of Seat Mechanism for a Wheelchair Controllable Multi-postures", Proceedings of KSPE Spring Conference, pp. 251-252.
  5. Lee, S., D., Lee, H., A., Song, J., B., and Chae, S., W., 2010, "Human-oriented Design of Backrest of Office Chair Using Haptic-aided Design and Lumber Angle Prediction," Transactions of the KSME(A), Vol. 34, No. 11, pp. 1581-1586.
  6. Kim, D., M., Chae, S., W., Kang, Y., S., Lee, I., H., and Kim, B., J., 2008, "On the Effects of the Back of Chair on Human Body," Proceedings of KSPE Fall Conference, pp. 635-636.
  7. Kim, K., T. and Kang, S., J., 2010, "Design Process of Light-weighted Fuel Cell Vehicle Body Frame," Transactions of the KSAE, Vol. 18, No. 6, pp. 114-121.
  8. Won, C., J., and Lee, J., S., 1998, "Sensitivity Analysis and Optimal Design for the Elasto-plastic Buckling of Vehicle Structures," Transactions of the KSMTE, Vol. 7, No. 5, pp. 106-112.
  9. Kim, H., G., Choe, G., H., Lee, B., H., Cho, Y., T., and Lee, D., J., 1999, "A Study on the Lightweight Design of a Seat Frame in Automotive Vehicles," Transactions of the KSMTE, Vol. 8, No. 5, pp. 83-89.
  10. Lee, S., B., 2000, "Design Optimization for Vehicle Pillar Section Shape Using Simple Finite Element Model," Transactions of the KSMTE, Vol. 9, No. 5, pp. 133-139.
  11. Moaveni, S., 2008, Theory and Application with ANSYS, Pearson Education/Prentice Hall., USA.
  12. Swanson, J., 2009, Ansys12.0, Ansys Inc., USA.