Static Structural and Life Prediction Analysis of Feeder Table Head Shaft for Wonji-Shoa Sugar Factory Using ANSYS
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Date
2018-12
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Addis Ababa University
Abstract
This paper deals with the problem occurred in the feeder table head shaft in wonji-shoa sugar factory.
The total length of the feeder table head shaft is 11.877 meter. And the total capacity of the cane to
feed is 6250 tone cane per day. The feeder table head shaft is subjected to repetitive load condition
(bending and twisting). From the result of static structural analysis, the existing and hollow feeder table
shaft is failed due to fatigue. To avoid the failure of the feeder table head shaft, the stress induced on
the shaft is studied and reduce the maximum stresses occurs on the shaft. By modifying a new feeder
table head shaft the stress is reduced comparing with the existing and hollow feeder table head shaft.
The composition of the material is known by using the Spectro test in the Akaki basic metals industry.
The models of the feeder table head shafts are prepared by CATIA software and import to ANSYS
workbench. The finite element analysis has been performed on the feeder table head shaft in order to
model and analyses static structural and life prediction analysis of the feeder table head shaft models.
The result of the modified feeder table head shaft is compared with the existing and hollow feeder table
head shaft based on different criteria’s which are maximum shear stress, maximum von-misses stress,
fatigue life, fatigue factor of safety and deflection of the shafts. Finally, based on the comparison of
the models result the modified feeder table head shaft is selected. The modified feeder table head shaft
has better results of fatigue factor of safety, von-misses stress, maximum shear stress, deflection and
fatigue life cycle with the same applied loads to the existing and hollow feeder table head shafts by
increasing the diameter and changing its material.
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Keywords
FEM, feeder table head shaft, shaft Failure Analysis, fatigue analyses, static structural analysis of shaft