影响固体火箭发动机推力偏心特性的误差源研究

为了找出产生火箭发动机推力偏心的主要误差源，利用六分力推力偏心测试系统对装药初温，喷喉误差，喷管内型面缺陷等影响推力偏心的情况进行了试验研究。研究结果表明：装药初温，喷喉形状尺寸误差，多喷管安装误差，喷管内型面缺陷等都对推力偏心有较大影响，获得了对固体火箭发动机设计与制造非常有参考价值的试验结果。

The Study of Error Source of Influencing Solid Rocket Motor Thrust Misalignment Characteristics

In order to find main error sources producing thrust misalignment of solid rocket motor,the influencing situation of many factors,such as initial temperature of grain,the errors of throat's configuration and dimension and flaws of nozzle inner surface etc,on thrust misalignment has been researched by using of the sixcomponent thrust test system.The testing results have shown that initial temperature of grain,the errors of throat's configuration and dimension and flaws of nozzle inner surface have great effect on thrust misalingnment.These research results obtained here are valuaple in the design and production of solid rocket motor.