ANALISA DAN REDESAIN SPROCKET ASSEMBLY CONVEYOR RAKE C2 DI STASIUN KETEL PG NGADIREJO

Abstract

Abstract. In the Ngadirejo sugar plant, sprocket shaft on the east C2 rake conveyor at the boiler station always failure every year. This conveyor is used for the process of fuel dregs supply at the boiler station. In this research, the analysis of failure and fatigue with the finite element method in Ansys will be carried out. The material analyzed is HQ705 with static loading. The analysis carried out includes static structural analysis and fatigue analysis on the sprocket shaft. Based on this analysis, found that the maximum displacement is 0.001163 m, the maximum equivalent stress is 71.8 MPa, the minimum life is 17.237 cycles, the maximum shear stress is 38.44 MPa, the minimum safety factor is 0.557744. The failure in the FEM analysis results in accordance with the actual failure location. The redesign process was carried out with HQ709 material, with this material the minimum life value is 50539 cycles.