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정일호(Ilho Jung),이진형(Jinhyoung Lee),박태원(Taewon Park),김혁(Hyuk Kim),조동협(Donghyeob Cho),박중경(Joongkyung Park) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.5_2
In this paper, a computer aided engineering (CAE) method is proposed for a fatigue life prediction in the early design stages using the multibody dynamics analysis and the linear damage rule. From a dynamic analysis of the OHT vehicle system, dynamic load time histories of vehicle components are calculated. From a finite element analysis of components, modal stresses are calculated. Through the dynamic load time history and the static stress of the component, a dynamic stress time history is produced using the superposition principle. Using the linear damage rule and the cycle counting method, the fatigue life is predicted from the dynamic stress time history. The process of predicting the fatigue life using the proposed computer models in this paper may be applied to structures of various dynamic systems.
우준성(Jun Seong Woo),전갑진(Kab-Jin Jun),박태원(Tae Won Park),박중경(Joong Kyung Park),황재철(JaeChul Hwang),조동협(donghyeob.cho),류제형(JeHyoung Ryu),김혁(Hyuk Kim) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
When compared with a gear and chain, a timing belt is an efficient element to transfer object in the system. The timing belt can move objects and the system can be operated quietly. Moreover, users can control the translation of the object precisely by the step motors and electronic control devices. But the failure of the timing belt can cause economical loss and even injure of operator. Although the design standard has been offered by the suppliers of the timing belt, users can’t predict the life of the timing belt in operating environment. We made the computer program with the life prediction method of the timing belt, and it can help the users to choose the suitable timing belt in the system.