The Study And Analysis Of The Free Straight Empennage By Guidance Rocket

The thesis is to present the current developing situation of medium and minor caliber guidance rocket in domestic and abroad, and to present and analyze the design of present guidance rockets in various countries, and to propose the key technologies in guidance rocket research and methods to reduce cost according to present developing situation and needs of guidance rocket. Aiming at the problems needed to solve, in order to reduce the research and manufacture cost, the rear stabilizing system of the rocket engine can be reformed, to reduce the design index and manufacture cost of guidance parts by simple reform in the condition of no increasing cost.This design can effectively resolve the orientation deviation and precision error resulted by angle acceleration at the firing beginning period of the guidance parts. During flying, the projectile body does not whirl, so the guidance parts can fold increase efficiency to guiding the rocket flying to target easily. The fewer requirements for angle acceleration testing and overloading can effectively reduce the precision requirements for guidance parts design and manufacture, especially the cost of stabilizing system in INS can be reduced more than1/3of original design. In addition, the free rolling straight empennage can avoid the reversal of arc empennage possibly caused by self-induction at low speed whirl condition, so it can effectively increase the guidance precision.The design in this thesis belongs to operative technology research, and the free rolling straight empennage is designed according to practical needs. It takes some product as prototype, but can be commonly used to the same type rocket. It can effectively reduce the cost and increase the guidance efficiency of the medium and minor caliber rocket, especially for the guidance rocket with directing groove whirl. The relative analysis for some type or product to manufacture has not been experimental verified, so it must be further experimental verified before application though it with some application prospects.