Abstract: Solid liquid rocket/ramjet was selected and investigated with the stable work conditions for a larger flight region. The method of theoretical calculation and optimization of design were determined and experimented.Simulation test on the conditions of larger flight region was conducted.Results show that the solid liquid rocket/ramjet is a better ramjet engine for military application in future. The optimization can be reached through regulating the mass ratio of liquid fuel/solid propellant.

Key words: Rocket ramjet;Recombination ramjet engine;Proposal research;Performance analysis;Development test

摘要： 为了研究适应较大空域稳定工作的冲压发动机 ,选定固液火箭冲压发动机为研究对象。确立了发动机的理论计算方法 ,优化了发动机的设计 ,并在试车台架上模拟大范围的飞行工况进行了试验考核 ,较好地验证了理论的正确性。固液火箭冲压发动机有其独特的性能 ,根据不同需求调整液体燃料与固体推进剂的比例 ,可达到最优组合 ,具有广阔的应用前景。

关键词: 火箭冲压发动机;复合冲压喷气发动机;方案研究;性能分析;研制试验