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激光等离子体点火以其点火位置和时序方便可控、工况适应性好、电磁干扰小、启动快、可实现重复点火等优点,成为航空航天动力系统极具潜力的一种点火技术。介绍了激光等离子体点火的技术特点及其基本物理过程;其次,回顾了激光等离子体点火在航空航天动力系统应用的研究现状,尤其是哈尔滨工业大学近年来取得的研究成果;最后,分析了激光等离子体点火面临的问题,并对其发展前景进行了展望。分析表明,激光等离子体点火在无毒非自燃推进剂的火箭发动机和碳氢燃料的超燃冲压发动机的可靠重复点火上具有广泛的应用前景,但要实现工程应用,仍需要解决激光点火器与航空航天动力系统的一体化设计、激光点火器的小型化和工程化等问题。
Laser plasma ignition with its ignition position and timing convenient and controllable, good adaptability to conditions, small electromagnetic interference, fast start, can achieve the advantages of repeated ignition, aerospace power system has great potential as a kind of ignition technology. The technical characteristics and basic physical process of laser plasma ignition are introduced. Secondly, the research status of the application of laser plasma ignition in aerospace dynamic system is reviewed, especially the research results made by Harbin Institute of Technology in recent years. Finally, Plasma ignition problems, and prospects for its development. The analysis shows that the laser plasma ignition has a wide range of applications in the ignition of non-toxic non-propellant propellant rocket engines and hydrocarbon fuel scramjet. However, to achieve the engineering application, it is still necessary to solve the problems of laser igniter and The integration design of aerospace power system, the miniaturization and engineering of laser igniter and so on.