机动弹头气动布局的一种新思路

常规的全动舵面机动弹头在再入飞行过程中,舵缝隙和舵轴附近的热环境特别恶劣,舵轴在承受巨大的弯扭力矩的同时,还必须解决所面临的严重的烧蚀防热问题,舵的设计往往成为影响弹头技战术性能的严重制约因素.本文提出了一种新型伸缩舵面机动弹头气动布局设计新理念,避免了普通全动舵面布局方案中舵轴设计面临的严峻的热环境和力环境等问题,而且还可以只通过这两片舵面实现对弹头的姿态和升力大小及方向的控制,从而实现对弹道的三维控制,是一种很有前途的机动弹头布局新思路.

A new idea of aerodynamic configuration for maneuvering warhead design

For a certain maneuvering warhead project, the exposed axle of control surface in airstream always becomes the main obstacle because of the severely aerothermodynamic environment caused by the gap between control surface and the body and the severely aerodynamic force and moment caused by control surface.In this paper,a new kind of maneuvering warhead aerodynamic configuration with the use of two retractile control surfaces is proposed,which could keep those problems away from maneuvering warhead design project,and also the flying attitude and the lift-to-drag ratio could be successfully controlled by sticking those two retractile control surfaces properly.Finally,the aerodynamic characteristic of this new kind of maneuvering warhead is analyzed.Result shows that the new kind of maneuvering warhead aerodynamic configuration really have many advantages compared with traditional maneuvering warhead aerodynamic configuration.