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CSME 2023/08
Volume 44 No.4
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301-310
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Optimization Design of a Three-Piece Dental Implant System by Uniform Design and Gray Relation Analysis
Danang Yudistiroa and Yung-Chang Chengb
aPh. D. Program in Engineering Science and Technology, College of Engineering, National Kaohsiung University of Science and Technology, Taiwan 824, ROC.
bDepartment of Mechatronics Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan 824, ROC.
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Abstract:
This study improves the strength of dental implant system under the fatigue and torsion testing simulation. The fatigue safety factor and the von Mises stress for a three-piece implant model are evaluated via ANSYS software. Control factors are continuous in the design space so a uniform design (UD) is used to construct a group of simulation experiments. Kriging interpolation (KGI) is utilized to create the Kriging surrogate model (KGSM). In the multi-objective optimization strategy, the entropy weighting method (EWM), gray relation analysis (GRA) and genetic algorithm (GA) are integrated to obtain the optimal solution and values. Finally, after executing the UD and multi-objective optimization techniques, the fatigue safety factor of the optimal design has been increased to1.791, the von Mises stress is reduced to 364.65 MPa. Further, it shows a 29.59 % and 7.74 % improvement for the fatigue safety factor and von Mises stress compared with the original design.
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Keywords: Three-piece dental implant, Fatigue safety factor, Uniform design, Gray relation analysis.
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©
2023
CSME , ISSN 0257-9731
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