Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Dynamic Analysis and Fatigue Life of the Belt in the OHT Vehicle

OHT 차량 벨트 동특성 및 피로 수명에 관한 연구

  • 정일호 (아주대학교 대학원 기계공학과) ;
  • 김창수 (아주대학교 대학원 기계공학과) ;
  • 조동협 (삼성전자 기술총괄 메카트로닉스연구소) ;
  • 박중경 (삼성전자 기술총괄 메카트로닉스연구소) ;
  • 박태원 (아주대학교 기계공학부)
  • Published : 2005.08.01
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Abstract

The OHT(Over Head Transportation) Vehicle transports heavy products quickly and repeatedly at the industrial workplace. The belt in the OHT vehicle is used to support the weight of the OHT Cage. The fatigue of the belt is caused by the dynamic load during the operation time. Since the fatigue fracture of the belt affects the safety at the workplace, the correct prediction of the dynamic load is necessary to calculate the fatigue life of the belt on the design step. In this paper a computer aided analysis method is proposed for the belt in the early design stage using dynamic analysis, stress analysis, belt tensile test, belt fatigue test and fatigue lift prediction method. From the dynamic load time histories and the stress of the belt FE model, a dynamic stress time history is produced. Using linear damage law and cycle counting method, fatigue life cycle is calculated. The method developed in this paper is used to reduce the time and cost for designing the OHT belt in different environment and condition.

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References

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Cited by

  1. Fatigue analysis of the main frame of over head transportation vehicles using flexible multibody dynamics vol.24, pp.3, 2010, https://doi.org/10.1007/s12206-010-0111-3