strength. The static stress analysis uses the Von
Mises Stress method due to the material of gear is
ductile (Khurmi, Gupta, 2005). Figure 6 shows that
the maximum stress occurs at 339.5 MPa in a teeth’s
pinion gear and the minimum stress occurs at 0 MPa
in a circular gear. From this analysis, the stress on
pinion gear is smaller than the material yield
strength. It means that the pinion gear strength able
to withstand the force that occurs.
Figure 6. Von mises stress analysis
3.2.2 Safety Factor
For safety purposes, the rotating shaft's safety factor
must be more than 1.5 (Suryavanshi, et al., 2017).
From the analysis, the minimum safety factor on
pinion gear is 1.03, while the maximum safety factor
on circular gear is 15. The safety factor on pinion
gear is not satisfying, while the safety factor on
circular gear fulfils the safety factor.
Figure 7. Safety factor analysis
4 CONCLUSION
The analysis using Autodesk Inventor 2019 software
found that the von mises at carbon steel pinion gear
with a yield strength of 350 MPa were able to
withstand force from sea wave and buoyance force
on the Bangka Belitung sea. The minimum safety
factor of pinion gear was lower than the safety factor
requirement.
ACKNOWLEDGEMENTS
We gratefully acknowledge the funding from
Universitas Bangka Belitung through the "Penelitian
Dosen Tingkat Jurusan" to publish this paper.
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