关键词: 导弹;燃气发生器;液压系统;一体化计算;流量调节;变喉面;快速起竖;气液联合制动

Abstract: Due to the limited installation space and installed power， it is difficult to solve the problem of long erection time for the vehicle borne missile erection device. In order to improve the erection speed， a power plant based on flow adjustable gas generator was designed. A mathematical model was established， which integrated equations of gas generator， hydraulic system and missile. The two working modes of constant throat and variable throat and their dynamic characteristics were compared and analyzed. The results show that the power plant cannot adapt to the variable load characteristic of erection device in the constant throat mode， which makes the missile cannot keep moving at a constant speed. The power plant can achieve stable acceleration， but cannot complete deceleration and braking in the variable throat mode， which causes a shock to the system. A gas-liquid combined control strategy is proposed. In the previous stage， a gas flow control valve is adopted to achieve rapid start-up and uniform motion. In the later stage， an oil flow control valve is adopted to complete deceleration， braking and smooth docking. The new type power plant can realize rapid and stable erection in 16s， which can provide an important reference for upgrading of the missile erection equipment.

Key words: Missile;Gas generator;Hydraulic system;Integrated simulation;Flow regulation;Variable nozzle;Rapid erection;Combined gas-liquid braking