Modeling of an airborne torpedo attack and implementation on a simulation environment

Abstract

Airborne torpedoes are effective weapons that are used against surface and subsurface entities. A carrying platform, which may be a helicopter or plane, drops the weapon with or without a parachute. After a travelling period in the air, the torpedo hits the water and penetrates through it, forming a splash and a cavity. The initial conditions for the movement of the torpedo in the water are produced as a result of velocity at the water entrance and pitch angle and resistance force generated by the water itself. Under the water, the weapon transforms through its internal phases with the aim of a possible target hit. In this work, a certain part of the developed military training simulator is given in order to investigate an airborne torpedo attack scenario. For this purpose, aircraft and torpedo dynamic models, as well as guidance and control laws, are derived; torpedo fall and water entry analyses are also performed. Simulation results are given for each model and/or analysis separately. Modules and libraries for these model simulations are integrated into the component architecture of a commercial computer-generated forces toolkit simulation engine, namely VR-Forces. An original control architecture that is able to manage a wide variety of simulation components with different infrastructures has also been realized.