Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Finite Element Method Based Structural Analysis of Z-Spring with CF&GF Hybrid Prepreg Lamination Patterns

유한요소해석을 이용한 CF&GF Hybrid Prepreg 적층 패턴에 따른 Z-Spring의 구조해석

  • Kim, Jeong-Keun (Department of Carbon Convergence Engineering, JEONJU UNIV.) ;
  • Choi, Sun-Ho (Department of Carbon Convergence Engineering, JEONJU UNIV.) ;
  • Kim, Young-Keun (S-Motors Co., Ltd) ;
  • Kim, Hong-Gun (Department of Carbon Convergence Engineering, JEONJU UNIV.) ;
  • Kwac, Lee-Gu (Department of Carbon Convergence Engineering, JEONJU UNIV.)
  • 김정근 (전주대학교 탄소융합공학과) ;
  • 최선호 (전주대학교 탄소융합공학과) ;
  • 김영근 ((주)에스모터스) ;
  • 김홍건 (전주대학교 탄소융합공학과) ;
  • 곽이구 (전주대학교 탄소융합공학과)
  • Received : 2020.12.11
  • Accepted : 2021.01.01
  • Published : 2021.03.31
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Abstract

Recently, research attention has been focused on vibration-free vehicles to transport small numbers of expensive electronic products. Vibration-free vehicles can be used to transport expensive test equipment or semiconductors, mainly produced in the domestic IT industry, and can serve as a readily available transportation system for short driving distances due to the increased efficiency on narrow national highways. This study was aimed at developing a Z-Spring to minimize the vibration by installing an air spring instead of the plate spring applied to conventional freight cars and to prevent the damage of the loaded cargo from the shock occurring during movement. The mechanical properties (elastic modulus, tensile strength, and shear strength) of carbon fiber (CF) and glass fiber (GF) prepreg were derived, and ANSYS ACP PrepPost analyses were performed. It was observed that in the case of hybrid composites, the total deformation and equivalent stress are higher than that of CFRP; however, in terms of the unit cost, the hybrid Z-Spring is more inexpensive and durable compared to the GF.

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References

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