Research On The Mathematical Models And System Simulation Of Airborne Dispenser

The airborne dispenser is a family of Multi-Purpose air-to-surface precision-attack modularized glide bomb. Its payload bay can accommodate lethal and non-lethal payloads - from warheads to pamphlets to sensor packages. The airborne dispenser can attack or close off any important strategic surface aim such as the enemy's surface-to-air missile launch base, aerodrome runway, armored force, command center, military harbor etc from well beyond most enemy air defenses, which lessens the danger to pilots greatly. At the point of computer simulation view, this paper analyzes the main parts and basic principles, and the simulation mathematical models are established. On the base of the simulation mathematical models, the computer program is made. Conclusions drawn in this paper provide a reference for our airborne dispenser' s development.The work in this paper is mainly carried out as follows.(1) The mathematical models of the airframe's kinematics and dynamics are established. The airborne dispenser studied in this paper is un-powered and fixed kids to add range. So the aerodynamic configuration and the aerodynamic parts' selection of the dispenser is discussed at first. Then six-degree-of-freedom simulation mathematical model is established.(2) The simulation modeling of GPS/SINS compound navigation is established. It is the GPS/SINS compound navigation by which the airborne dispenser can attacked the aims precisely. Combining the factual condition of weapons equipped and requirement of simulation, a doable simulation modeling of GPS/SFNS compound navigation is established.(3) The simulation mathematical modeling of the control and guide system is established. Firstly, the infrared imaging guidance's principles and the means to deal with the mathematical model are introduced. Then, the mathematical model of the airframe's Proportional Navigation law is established. Finally, the mathematical model of the control stabilizing loops and the rudder loops are established.(4) Cabin-opening and dispersion are the key technologies. Firstly, the main means of them are introduced. Secondly, The mathematical models of the powder-gases type dispersion are established. Thirdly, the mathematical models of the submunitions' kinematics and dynamics are established. Finally, the randomicity of powder explosion and wind-disturbing are discussed.(5) On the base of the above-mentioned mathematical model, the design idea of the simulation program is offered. And the digital simulation is made. Some valuable conclusions are drawn through analyzing simulation results.