Analisis Desain Housing Bearing Dengan Pendekatan Finite Element Method (FEM)

Abstrak

PT. KTC is a coal mining company in Kutai Timur Regency, East Kalimantan
Province. To achieve production targets, the company undertakes machine
repairs and maintenance to ensure that the production process runs safely
and efficiently. PT. KTC faces the problem of damage to the bearing housing
on the impact roller conveyor. Therefore, it is necessary to design a new
bearing housing to address this issue. The purpose of the study is to determine
the strength of the material, particularly the factor of safety (FOS) and the
strength of bolt connections. The researcher uses a quantitative approach
method with data collected in the form of measurements, including both the
loads that occur and the object's dimensions. Based on the FOS calculations,
the FOS values before and after the design are 0.691 and 1.843, respectively.
The FOS calculation results before the design show an unsafe value, below
the safety factor standard based on Mott's theory. Conversely, the FOS
calculation results after the design show a safe value, as it is above the safety
factor standard based on Mott's theory. Additionally, the calculation of the
bolt connection after the design shows an actual shear stress value of 55.992
N/mm². This value indicates that the bolt connection does not experience
damage, as it does not exceed the allowable shear stress of 90.9 N/mm²