为了研究非同轴喉栓式推力调节喷管的性能影响因素和影响规律,文中建立了喉栓式喷管的等效喉部面积计算方法,通过数值模拟得到了喷管喉部型面、喉栓直径、喉栓型面、非同轴角度等因素的变化带来的影响。分析结果表明:喷管喉部型面和喉栓型面均采用直锥体形,更有利于推力的线性控制,非同轴角度的变化对调节性能几乎没有影响,但喉栓直径对调节影响较为显著,应在满足推力调节比的情况下,采用最合适的大小。

In order to study the performance of non-coaxial pintle control thrust nozzle, a method was proposed for calculating the nozzle equivalent throat area, and the analysis of influence by changes of different transition type face, shape of the pintle, angle of non coaxial and different diameter of the pintle was made. Conclusion: if the throat transition type face and shape of the pintle are straight line segment of the revolving body, thrust control will become linear, there is little influence of non-coaxial angle on thrust regulation: The effect of throat diameter on regulation is more effective, but in actual situation, proper size should be used.