ANALYSIS AND MODELING OF WEIGHBRIDGE CONSTRUCTION REINFORCEMENT AT PT BUKIT ASAM

Abstract

Coal mining is a process that consists of several stages, and each stage must be passed as an inseparable part of the other stages. One of the important stages in the coal mining process is the weighing process used to measure the achievement of coal production and as a transactional tool. The weighing of coal is done using a bridging scale. The importance of the role in mining productivity must have strived for no failure in its main components, one of which is the weighbridge construction, where several occurrences of deformation occur in the main beam construction. Repair and strengthening efforts are carried out to overcome the deformation problems based on analysis and modeling using the software-based Finite Element Method. The material used is modeled using the Finite Element Method with loading FA = 41,618.18 N, FB = 51,087.56 N, and FC = 26,203.35 N towards the Z axis ST52-3 with Density 7,850 g/cm3, Yield Strength 345 Mpa, Tensile Strength 560 Mpa. The meshing of 946,278 elements and 1,728,745 nodes. Construction analysis using finite element-based software Inventor 2019. The simulation results can be concluded that the greatest von mises stress occurs in the direction of the Z axis with a value of 184 MPa, and the largest displacement occurs in the direction of the Z vector with a value of 7.98 mm.