Aspirated fan/compressor(ASFC) is an integral part of high pressure ratio compression system.So

the background

necessity

technical features and research trend of ASFC were reviewed and analyzed.With ASFC technology

it shall be possible to increase efficiently fan/compressor pressure ratio

but also reduce the axial length and weight of the engine as well as the noise of fans.Meanwhile

it increases the flexibility and payload of the flight vehicle

thus reducing the fuel consumption.However

this new structure also leads to some problems in strength and aeroelasticity

so some analytical results and suggestions are presented.