The Study Of Aerodynamics On The Missile In Air Vertical Lunch System

Air launch technology is a technology of launching payloads including launch vehicles carrying payloads,cruise missiles and unmanned aerial vehicles from aerial launch platforms(mainly air-crafts or airships and other aviation vehicles).The process is carrying the payloads to a certain height and launching them in a certain speed from the aerial launch platforms,achieving the purposes of mobile launching and improving the carrying capacity,range and scope.Air launch system includes aerial launch platform system,payload system,delivery separation system.The movement process of missile,which is air-launched vertically,during its erecting is mainly researched in this paper.Compared with several other mobile launch,aerial mobile launch has a range of advantages including low launch costs,short launch preparation time and good mobility and concealment.Aerial platforms fly much faster than ground vehicles,making the maneuvering range much larger than that on ground.And the maneuvering direction is very unpredictable for enemy detection systems,which greatly improves the probability of survival in wartime.In order to study the factors that affect the missile's movement during the erecting process in aerial vertical launch,the comparison method of cases with and without parachute is used,and mathematical models of the two states are established,respectively.And the two cases are simulated respectively in ADAMS,obtaining the initial conditions of missile separating from the launch platform.In order to study the aerodynamic effect on missile movement during the missile's erecting,the dropping process of missile after separating from the launching device is simulated in software FLUENT using dynamic mesh technology.