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

Dede Tarwidi
2016 International Journal on Information and Communication Technology (IJoICT)  
In this paper, numerical analysis of small-caliber projectile during external ballistic is presented. This work is aimed to find safe location to install microelectromechanical system (MEMS) inside 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
more » ... drical domain is used to describe transient temperature of small-caliber 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 effect to the heat distribution. The maximum temperatures obtained from temperature history are below threshold value of MEMS damage that is 71 oC. The MEMS technology can be installed anywhere inside the small-caliber projectile except at near top and bottom of projectile surface.
doi:10.21108/ijoict.2016.21.73 fatcat:gm6hbeejrnh5likqh22wrymgca