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박경용(K.Y. Park),박은영(E.Y. Park),김민선(M.S. Kim),황정구(J.G. Hwang),손웅희(W.H. Shon),김건하(K.H. Kim),박진환(J.H. Park) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
Under the various conditions and purposes of excavator, fracture and fatigue happens at rotary grippers part in which damage is occurring frequently. This study is for computational analysis and design optimization for ring-geared grippers of 21-ton excavator rotary in order to improve the life. Through this study, we tried to evaluate the stress concentration leads to fracture and find out the optimal condition of structure. We conducted study on the design of the ring gear for improvement and suggested the design change to prevent stress concentration.