无翼式推力矢量控制导弹总体设计方法研究——重心及压心规划

On Proper Consideration of Center of Gravity and Pressure Center in Design of AirtoAir Missile

研究了无翼式推力矢量控制导弹的重心及压心规划问题。首先对问题的提出进行了分析和论述，在此基础上，给出了无翼式推力矢量控制导弹的重心及压心的规划准则和规划方法。该准则和方法充分考虑了导弹各分系统的性能和设计要求。一个实际算例验证了本文提出的准则和方法的正确性。

Airtoair missile is increasingly more maneuvrable resulting in peak acceleration reaching already as high as 60 g . Such high acceleration requires better consideration of c.g. (center of gravity) and p.c. (pressure center) than that now available in the open literature. For highly maneuvrable airtoair missiles, better consideration requires that c.g. must be well matched with p.c. throughout the entire flight of the missile. Good matching requires that the designer must give painstakingly careful attention to aerodynamic properties, flight performance, powerplant characteristics and control system design of the missile. We developed a method to achieve such good matching and present it in this paper. We took as numerical example a certain wingless thrust vector control missile. The design goals to be attained were: maneuvring overload of target=11, maneuvring overload of missile=60. Technical requirements to be satisfied were: maximum weight of missile=90 kg, maximum speed of missile=1 190 m/s, and total impulse of solidpropellant rocket motor=9 257 kg·s. We used the method we developed and the calculated results are shown in Fig.2. Fig.2 shows good matching between c.g.(solid curve) and p.c.(dotted curve).