摘要: |
为了研制能在高空稳定工作、且耗油率低的、高空长航时用的涡扇发动机,借助数值计算和试验数据,对此类发动机在高空工作时,其压缩系统、燃烧系统、涡轮、控制系统、润滑系统和内部空气系统所遇到的问题作了较为系统、深入的探讨和分析。结果表明,高空低Re使压缩系统、燃烧系统和涡轮性能下降,控制系统必须调整所有与飞行高度有关的参数,滑油箱压力、油泵气蚀和滑油冷却问题必须予以考虑,内部空气系统会影响冷却和封严效果。对每一个问题都提出了相应的解决办法。 |
关键词: 涡轮风扇发动机 无人驾驶飞机 高空飞行 系统参数 |
DOI: |
分类号:V235.13 |
基金项目: |
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Technological analysis for the turbofan engine of high altitude long endurance unmanned aerial vehicles |
ZHAO Gang, CAI Yuan-hu, TU Qiu-ye, WANG Zhan-xue
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School of Power and Energy,Northwestern Polytechnical Univ.,Xi’an 710072,China
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Abstract: |
To develop the turbofan engine for high altitude,long endurance unmanned aerial vehicles(HALE UAV),the problems which will be run into at high altitude are discussed and analysed for high/low pressure compressor,combustion system,high/low pressure turbine,engine control system,lubrication system and internal air system.The solution for every problems are proposed. |
Key words: Turbofan engine Pilotless aircraft High altitude flight System parameter |