Thrust line measurement of multi-nozzle solid rocket engine
Chunfu Zhang1, Jianguo Miao2, Song Tang2
1School of Electrical Engineering, YanCheng Institute of Technology, Yancheng 224051, Jiangsu, China
2Chenguang Calibration & Testing Center, Nanjing 210006, Jiangsu, China
Static thrust line is an important measuring parameter of solid rocket engine. Factors that affect the misalignment and deflection of thrust line of multi-nozzle solid rocket engine were analysed in static condition, and a measuring method by Laser Tracker for thrust line was researched. A calculation model of the thrust line was established based on simplified force spiral rule, which synthesizes the space force systems. The simulation results of misalignment and deflection indicate that the method has high measurement accuracy.