Simulation of Micro–EDM Servomotor for Machining Micro Pits on Hip Implant
DOI:
https://doi.org/10.11113/jt.v61.1635Keywords:
Hip implant, lubrication, micro pits, electrical discharge, DC motor, PI controller, particle swarm optimizationAbstract
Metal–on–metal articulation of hip implant suffers from friction due to the moving metal surface. Thus it would shorten the lifespan of the joint. One of the significant current discussions in biomedical field is to reduce the friction between the articulations surface. It was found that lubrication technique is applicable in order to reduce the friction. A surface texture which micro pits formation on the metal surface of hip implant then was found to benefits the lubrication performance. Due to many advantages offered by electrical discharge machining especially in micro machining, it is utilized for machining the micro pits in this research. Thus, this paper is proposing on machining and control method for this purpose in terms of workpiece placement, coordination and orientation related to the electrode of the electrical discharge machining system. In this paper, a design of motor control simulation has been made using DC motor, Proportional–Integral controller and particle swarm optimization in order to get a better performance of micro–machining positioning for this purpose. From the simulation, the result obtained showed that the model could give a better positioning when using particle swarm optimization technique.References
S. Affato, M. Spinelli, M. Zavalloni, C. Mazzega-Fabbro, and M. Viceconti. 20078. Tribolgy and Total Hip Joint Replacement: Current Concepts in Mechanical Simulation. Medical Engineering & Physics. 30: 1305–1317.
J. H. Dumbleton and M. T. Manley. 2005. Metal-on-Metal Total Hip Replacement. The Journal of Arthroplasty. 20(2): 174–188.
M. A. Wimmer, J. Loos, R. Nassutt, M. Heitkemper and A. Fischer. 2001. The Acting Wear Mechanisms on Metal-on-Metal Hip Joint Bearings: In Vitro Results. Wear. 250(1–12): 129–139.
F. C. Wang, C. Brockett, S. Williamss, I. Udofia, J. Fisher, and Z. M. Jin. 2008. Lubrication and Friction Prediction in Metal-on-Metal Hip Implants. Physics in Medical and Biology. 53: 1277–1293.
T. Lindstrom. 2011. Depuy Hip Implant Disadvantages [cited 2011 20 October]; Available from: http://depuyhiprecallattorney.wordpress.com/2011/01/06/depuy-hip-implant-disadvantages/.
L. Gao, P. Yang, I. Dymond, J. Fisher and Z. Jin. 2010. Effect of Surface Texturing on the Elastohydrodynamic Lubrication Analysis of Metal-on-Metal Hip Implants. Tribology International. 43(10): 1851–1860.
K. Inoue and K. Setagaya. 1977. Servosystem for Electrical Machining Process. 21.
G. Cusanelli, M. Minello , F. Torchia , W. Ammann , P. E. Grize, S. A. Posalux, and F. Oppliger. 2007. Properties of Micro-Holes for Nozzle by Micro-Edm, in 15th International Symposium on Electromachining (ISEM XV).
Y. Yamada, T. Masaki, T. Nakagawa , H. Nakata, H. Yasumoto, and T. Wada. 2004. Apparatus for Electrical Discharge Micromachining of a Microdiameter Hole. 2004, Matsushita Electric Industrial Co., Ltd., Osaka. 18.
C-C. Kao and A. J. Shih. 2007. Form Measurements of Micro-Holes. Measurement Science and Technology. 18(11): 3603–3611.
M-F. Hsieh, C-J. Tung, W-S. Yao, M-C. Wu, and Y-S. Liao. 2007. Servo Design of a Vertical Axis Drive Using Dual Linear Motors for High Speed Electric Discharge Machining. International Journal of Machine Tools and Manufacture. 47(3–4): 546–554.
L. Mattei, F. Di Puccio, B. Piccigallo, and E. Ciulli. 2011. Lubrication and Wear Modelling of Artificial Hip Joints: A Review. Tribology International. 44(5): 532–549.
H. K. Sezer, L. Li, M. Schmidt, A. J. Pinkerton, B. Anderson, and P. Williams. 2006. Effect of Beam Angle on Haz, Recast and Oxide Layer Characteristics in Laser Drilling of Tbc Nickel Superalloys. International Journal of Machine Tools and Manufacture. 46(15): 1972–1982.
N. L. S. Hashim, A. Yahya, M. R. Abdul Kadir, S. Samion, and N. Mahmud. 2012. Manufacturing Methods for Machining Micro Pits of Hip Implant for Metal-on-Metal Lubrication. in 2012 International Conference of Biomedical Engineering (ICoBE). Penang, Malaysia: IEEE and SCOPUS.
Kilian. 2005. Modern Control Technology. 3rd Edition. Thomson Delmar Learning.
S. M. GirirajiKumar, D. Jayaraj, and A. R. Kishan. 2010. Pso Based Tuning of a Pid Controller for a High Performance Drilling Machine. International Journal if Computer Application. 1(19): 12–18.
B. Allaoua, B. Gasbaoui, and B. Mebarki. 2009. Setting up Pid Dc Motor Speed Control Alteration Parameters Using Particle Swarm Optimization Strategy. Leonardo Electronic Journal of Practices and Technologies. 8(14): 19–32.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
