Proceeding of EDISON Challenge (EDISON SW 활용 경진대회 논문집)

Korea Institute of Science and Technology Information (한국과학기술정보연구원)
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Optimal Shape Design of Legs and Stretcher Parts of Chair

의자 다리와 스트레쳐를 중심으로 한 형상 최적화 설계

  • Lee, Young-Min (Department of mechanical engineering, Seoul National University of Science and technology) ;
  • Jeong, Hoon (Department of mechanical engineering, Seoul National University of Science and technology)
  • 이영민 (서울과학기술대학교 기계공학과) ;
  • 정훈 (서울과학기술대학교 기계공학과)
  • Published : 2016.03.22
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Abstract

In this paper, Shape optimal design for a chair with 4 legs and 2 stretchers consisting of stainless steel was conducted. The shape was transformed by identifying stress and deformation for the part of leg and stretcher. In addition, load condition and mesh was designed using Hypermesh. The stress analysis was carried out using CSD_Elast that is one of EDISON program. In seat test, Maximum equivalent stress was showed at the contact part between seat and legs. As a result, a leg cross-section with rectangular and arch was designed. And optimal height of stretcher was found to reduce a deformation. Also, maximum deformation was reduced by designing a stretcher with ellipse cross-section. So, Optimal chair having 4 legs with rectangular cross section and 2 stretchers with ellipse cross section was shown to satisfy the safety ratio.

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