| Title |
Optimal Guidance of Guided Projectile for Range Maximization with Boundary Condition on Fin Deployment Timing |
| DOI |
http://doi.org/10.5370/KIEE.2019.68.1.129 |
| Keywords |
Optimal guidance ; Optimal control ; Guided projectile ; Range maximization ; Boundary condition ; Mechanical energy ; Cost of transport |
| Abstract |
In order for a gun-launched guided projectile to glide to the maximum range, when to deploy the fin and start flight with guidance and control should be considered in range optimization process. This study suggests a solution to the optimal guidance problem for flight range maximization of the flight model of a guided projectile in vertical plane considering the aerodynamic properties. After converting the nonlinear Multi-Phase Optimal Control Problem to Two-Point Boundary Value Problem, the optimized guidance command and the best fin deployment timing are calculated by the proposed numerical method. The optimization results of the multiple flight rounds with various initial velocity and launch angle indicate that determining specific launch condition incorporated with the guidance scheme is of importance in terms of mechanical energy consumption. |