Numerical Simulation of MEMS Technology Integrated in a Small-Caliber Projectile

Dede Tarwidi

Abstract


In this paper, numerical simulation of small-caliber projectile during external ballistic is presented. This work is aimed to find safe location to install microelectromechanical system (MEMS) inside a small-caliber projectile based on history and distribution of temperature. The MEMS technology is applied to increase performance of the projectile and it must be protected from damage due to high temperature during internal and external ballistic. Heat conduction equation in cylindrical domain is used to describe transient temperature of smallcaliber projectile. Finite element method with the appropriate boundary conditions is adopted to solve the heat conduction equation and to obtain temperature distribution inside projectile. Numerical results show that heat transfer behavior of the projectile at any point is greatly affected by the value of thermal conductivity of material while the external convection does not significantly affect to the heat distribution. The maximum temperatures obtained from temperature history are below threshold value of MEMS damage that is 71℃. The MEMS technology can be installed anywhere inside the projectile except at the rear surface of the projectile which experienced friction with the inner surface of gun barrel during internal ballistics.

Full Text:

PDF

References


Alexiades, V., & Solomon, A. D. (1992). Mathematical modeling of melting and freezing processes. CRC Press.

Blomberg, T. (1996). Heat conduction in two and three dimensions: Computer modelling of building physics applications (Vol. 1008). Lund University.

Dellacherie, S., Faccanoni, G., Grec, B., Nayir, E., & Penel, Y. (2014). 2d numerical simulation of a low mach nuclear core model with stiffened gas using freefem++. ESAIM: Proceedings and Surveys, 45, 138–147. Crossref

Deriaz, E., Despres, B., Faccanoni, G., Gostaf, K. P., Imbert-Gérard, L.-M., Sadaka, G., & Sart, R. (2011). Magnetic equations with freefem++: the grad-shafranov equation & the current hole. In Esaim: Proceedings (Vol. 32, pp. 76–94). Crossref

Font, R., & Peria, F. (2013). The finite element method with freefem++ for beginners. Electronic Journal of Mathematics & Technology, 7(4).

Hecht, F. (2012). New development in freefem++. J. Numer. Math., 20(3-4), 251–265.Crossref

Keller, J. (2012). Mems and nanotechnology maturing for certain military applications, but the potential is still immense. Military and Aerospace Electronics, 23(6), 27–28.

Lefebvre, A. (2007). Fluid-particle simulations with freefem++. In Esaim: Proceedings (Vol. 18, pp. 120–132).

Lewis, R. W., Morgan, K., Thomas, H., & Seetharamu, K. (1996). The finite element method in heat transfer analysis. John Wiley & Sons.

Nastasescu, V., Cotoara-Nicolae, A., & Barbu, C. (2009). Using of the finite element method in exterior ballistics. Scientific Bulletin-Nicolae Balcescu Land Forces Academy, 14(2), 111.

Reddy, J. N., & Gartling, D. K. (2010). The finite element method in heat transfer and fluid dynamics. CRC press.

Steele, B. D. (1994). Muskets and pendulums: Benjamin robins, leonhard euler, and the ballistics revolution. Technology and Culture, 35(2), 348–382. Crossref

Thomas, M. B. (2009). Thermoelectric energy harvesting in small-caliber projectiles. Technical Digest PowerMEMS 2009 (Washington DC, USA, December 1-4 2009), 261–264.

Thomas, M. B., & Dozier, L. (2010). Finite element modeling of transient temperatures in a small-caliber projectile. Am. J. Eng. Applied Sci, 3, 355–362. Crossref

Wilson, E. L., & Nickell, R. E. (1966). Application of the finite element method to heat conduction analysis. Nuclear Engineering and Design, 4(3), 276–286. Crossref




DOI: http://dx.doi.org/10.21108/IJOICT.2016.21.73

Refbacks

  • There are currently no refbacks.


Copyright (c) 2016 Dede Tarwidi

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.