超音速分离线喷管研究进展

Advances in supersonic splitline nozzle

超音速分离线喷管技术在结构紧凑性、减轻消极质量、降低伺服力矩、偏转放大效应和降低研制成本等方面具有显著优势,有广泛的应用前景,高性能轻质小力矩超音速分离线球窝喷管成为当前喷管技术的重要研究方向。对该摆动喷管技术的研究进展进行了归纳分析,探讨了偏转放大效应评价指标、性能评估和分离线结构优化等需要进一步深入研究的问题,并建议通过理论分析和试验验证提出侧向力预估模型,以期为超音速分离线矢量喷管的研究工作提供思路和参考。

Due to the promising prospect and potential benefits, such as compactness, reduced nozzle weight, considerable actuation torque, amplification effect, cost-effectiveness, the supersonic splitline movable nozzle techniques has been widely investigated. In this paper, a brief review of the progress is presented. According to the inductive analysis, supersonic splitline ball and rocket nozzle with considerable torque and high performance have become the main research direction. The issues that deserve further investigation regarding to amplification effect index, performance estimation and splitline configuration optimization are also discussed. Furthermore, the prediction model of lateral force should be proposed by means of theoretical analysis and experimental verification, which may provide meaningful reference information for the future relevant research work.