Application of Taguchi method in optimization of cervical ring cage

Yang, K, Teo, E and Fuss, F 2007, 'Application of Taguchi method in optimization of cervical ring cage', Journal of Biomechanics, vol. 40, pp. 3251-3256.


Document type: Journal Article
Collection: Journal Articles

Title Application of Taguchi method in optimization of cervical ring cage
Author(s) Yang, K
Teo, E
Fuss, F
Year 2007
Journal name Journal of Biomechanics
Volume number 40
Start page 3251
End page 3256
Total pages 6
Publisher Pergamon
Abstract The Taguchi method is a statistical approach to overcome the limitation of the factorial and fractional factorial experiments by simplifying and standardizing the fractional factorial design. The objective of the current study is to illustrate the procedures and strengths of the Taguchi method in biomechanical analysis by using a case study of a cervical ring cage optimization. A threedimensional finite element (FE) model of C5-C6 with a generic cervical ring cage inserted was modelled. Taguchi method was applied in the optimization of the cervical ring cage in material property and dimensions for producing the lowest stress on the endplate to reduce the risk of cage subsidence, as in the following steps: (1) establishment of objective function; (2) determination of controllable factors and their levels; (3) identification of uncontrollable factors and test conditions; (4) design of Taguchi crossed array layout; (5) execution of experiments according to trial conditions; (6) analysis of results; (7) determination of optimal run; (8) confirmation of optimum run. The results showed that a cage with larger width, depth and wall thickness can produce the lower von Mises stress under various conditions. The contribution of implant materials is found trivial. The current case study illustrates that the strengths of the Taguchi method lie in (1) consistency in experimental design and analysis; (2) reduction of time and cost of experiments; (3) robustness of performance with removing the noise factors. The Taguchi method will have a great potential application in biomechanical field when factors of the issues are at discrete level.
Subject Mechanical Engineering not elsewhere classified
Keyword(s) Taguchi method
finite element
cervical spine
cage
DOI - identifier 10.1016/j.jbiomech.2006.12.016
Copyright notice © 2007 Published by Elsevier
ISSN 0021-9290
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