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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Fracture Study due to the Fork Width of Forklift

지게차 포크의 폭에 따른 파손 연구

  • Han, Moonsik (Department of Mechanical and Automotive Engineering, Keimyung UNIV.) ;
  • Cho, Jaeung (Division of Mechanical and Automotive Engineering, Kongju National UNIV.)
  • 한문식 (계명대학교 기계자동차공학과) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Received : 2018.03.20
  • Accepted : 2018.03.29
  • Published : 2018.04.30
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Abstract

A forklift is used to lift materials above a height of 2 m. The width of the fork determines the weight of the material it can carry. In this paper, three models of fractured forklifts were analyzed to determine if the fracture was caused by load fatigue due to the width of the fork. The position of the fork was fixed on each model, and a 2.5 ton load was placed at the upper part of the fork. The width distances on each of three models were 500 mm, 750 mm and 1000 mm, and the maximum equivalent stresses were 237.5MPa, 227.62MPa and 230.99MPa, respectively. This analysis demonstrated that as the load increased with use of the wider fork, the fatigue life remained to be nearly equivalent irrespective of fork width among all three models. The results of this study contribute to the durability and safety design of forklifts.

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References

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