通过对比封闭式级间分离方案与开排焰窗口级间分离方案的差别,给出封闭式分离时序设计和特殊环境条件,并结合在固体飞行器飞行姿控执行机构中首次应用的机电伺服机构工作特点,对机电伺服机构在封闭式级间分离条件下的扰动力矩、憋压和热流等环境适应性进行分析,为封闭式分离方案下的伺服机构设计提供参考。 By comparing the difference between the closed interstage separation scheme and the open flame window interstage separation scheme, the closed separation timing design and special environmental conditions are given. Combined with the first application of the electromechanical servo mechanism in the flight attitude control of the solid aerocraft The paper analyzes the environmental adaptability of mechanical and electrical servo system under the conditions of closed interstage separation, such as disturbance torque, pressure and heat flow, and provides references for the design of servo mechanism under closed separation scheme.