| 摘要: |
| 瞄准临近空间及空天飞行器对动力系统提出的水平起降、极宽速域和空域工作、综合油耗低、推重比高、重复使用易维护等极高要求，从力、热、域、效、智五个方面分析了空天组合动力面临的推力陷阱、高超声速下面临热力循环效率低及结构热防护难、宽域及跨域面临能否可靠工作、热力循环效率及推进效率等飞行效率优化难度高、多任务适应及多点设计最佳难度极高等技术挑战。在此基础上，综合研判国际技术发展趋势，分别给出了五个方面的技术解决途径建议。 |
| 关键词: 空天组合动力 技术挑战 解决途径 |
| DOI： |
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| Technical Challenge and Potential Solution for Aerospace Combined Cycle Engine |
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LING Wen-hui1,2,HOU Jin-li1,WEI Bao-xi1,2,GANG Qiang1,2
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(1. Beijing Power Machinery Institute，Beijing 100074，China;2. Science and Technology on Scramjet Laboratory，Beijing Power Machinery Institute，Beijing 100074，China)
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| Abstract: |
| Aim at extremely high needs of propulsion for aerospace vehicle，technical challenge for aerospace combined cycle engine on five aspects of thrust，heat，region，efficiency，and intelligence are analyzed，which mainly includes thrust gap，thermal protection difficult，reliable work for wide domain，flight efficiency optimization，the beat for multiple design point etc. After comprehensive study of international developing trend，some potential solutions have been encountered severally，which give references for investigation of aerospace combined cycle engine. |
| Key words: Aerospace combined cycle engine Technical challenge Potential solution |
