Abstract:
The purpose of this study was to determine the effect of misalignment distance of Cooling Tower drive shaft on
normal stress and shear stress. Tensions that occur on the shaft continuously for a long time cause the shaft to
experience fatigue. The greater misalignment distance will not only damage the shaft but can damage other
components. For this reason, the misalignment of the cooling tower shaft is very important to study. This study uses
a simulation method by first making a design drawing of the cooling tower drive shaft. Determine the material of
the shaft and coupling, then perform simulations and analyze the results. The results of the Von Misses test at the
highest and lowest voltages did not show a significant difference this was caused by the voltage difference that was
not too far away. The shaft bears varying loads, causing stress along the shaft which results in rapid fatigue. These
characteristics are associated with increased load and all indicate that misalignment reduces the life and reliability
of the motor and its components. Based on the results of the Von Misses test and the lowest risk displacement that
occurs to the effect of this misalignment is the misalignment distance (md = 1 mm), the higher the md value, the
greater the risk that occurs to the cooling tower drive shaft.
