【摘要】 针对固液火箭发动机低频非声振荡燃烧问题进行了发动机试验研究。介绍了挤压式过氧化氢(H2O2)-低密度聚乙烯(LDPE)固液火箭发动机试验系统及试验发动机结构特点,并分析了固液火箭发动机不稳定燃烧特点。试验结果表明,通过提高氧化剂供应管路的刚性、改变喷嘴雾化效果,可解决低频振荡燃烧。更多还原

【Abstract】 The problem of the low-frequency non-acoustic oscillation combustion of the hybrid rocket motor(HRM) was studied.In this paper,the test system of HRM and the structural features of the test motor were also introduced and the unstable combustion features of the HRM were analyzed.The results show that the low-frequency oscillation combustion can be effectively restrained by enhancing the rigidity of oxidizer supply pipeline and improving the nozzle atomization effect.更多还原