| 脉冲爆震增压发动机非稳态参数测试技术研究现状与展望 |
| Research status and prospects of unsteady parameter testing techniques for pulse detonation enhanced engines |
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| 中文摘要: |
| 综述了吸气式脉冲爆震发动机在非稳态燃烧条件下的关键参数测试技术。在燃烧组织方面，阐述了爆震波压力和燃气速度的测量方法，探讨了压电、压阻传感器及光学技术的研究情况，分析了这些技术应用于高温高频环境时所面临的挑战；在燃烧室性能研究方面，分析了增压比和燃烧效率测量技术的研究现状，论述了基于质量加权平均法和光学技术的高精度测量方案；在部件匹配方面，介绍了涡轮转速与效率的动态测试方法，分析了非稳态条件下涡轮效率下降的原因，并提出设计优化建议；在整机性能方面，总结了推力测量技术的最新研究进展，阐述了基于动态系统参数识别和反卷积技术的高精度推力测量方法。对脉冲爆震增压发动机非稳态参数测试技术未来的发展方向进行展望，指出可通过提高传感器和光学设备的抗干扰能力、优化燃烧室结构设计、研发具有更高时间和空间分辨力的动态测试系统、研究更智能的多参数联合测量系统等手段，进一步提升脉冲爆震增压发动机非稳态参数测试技术的准确性和可靠性，推动该技术的工程化应用。 |
| 英文摘要: |
| The article reviews the key parameter testing technologies for air?breathing pulse detonation engines under unsteady combustion conditions. It elaborates on the methods for measuring detonation wave pressure and gas velocity, explores the research status of piezoelectric and piezoresistive sensors as well as optical technologies, and analyzes the challenges faced by these technologies in high?temperature and high?frequency environments. The current state of the research on the measurement of pressure ratio and combustion efficiency is analyzed, and high?precision measurement schemes based on the mass?weighted average method and optical technologies are discussed. Dynamic testing methods for turbine speed and efficiency are introduced, the reasons for turbine efficiency decline under unsteady conditions are analyzed, and the design optimization suggestions are proposed. The latest advancements in thrust measurement technologies are summarized, and the high?precision thrust measurement methods based on dynamic system parameter identification and deconvolution techniques are elaborated. Finally, the future development directions of unsteady parameter testing technologies for pulse detonation boosted engines are envisioned, including improving the anti?interference capability of sensors and optical devices, optimizing combustion chamber design, developing dynamic testing systems with higher temporal and spatial resolution, and researching more intelligent multi?parameter integrated measurement systems. These efforts aim to further enhance the accuracy and reliability of unsteady parameter testing technologies for pulse detonation boosted engines and promote their engineering applications. |
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| 中文关键词: 吸气式脉冲爆震发动机 非稳态参数 燃烧组织 燃烧室性能 部件匹配 整机性能 |
| 英文关键词:air⁃breathing pulse detonation engine unsteady parameters combustion organization combustion chamber performance component matching overall system performance |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2025.01.04 |
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