航空发动机设计任务循环的选取

Abstract

Abstract:

The design flight mission profiles and mission mixing of an aeroengine are obtained from its future usage, and then the rotation speed profiles are derived based on its altitude airspeed preformance.The compressor disc's stress and low cycle fatigue life are calculated under these rotation profiles.From the results, the choice ranges of the design duty cycles are given.Besides 0 maxiumm 0, idle maximum idle and cruise maximum cruise cycles, the load cycles which can create obvious fatigue damage to the engine components must be chosen into design duty cycles.

Key words: aeroengine, fligh t load spect rum, fat igue life

CLC Number:

V215.13
O316

Song Yingdong;Gao Deping. CHOICE OF AEROENGINE DESIGN DUTY CYCLES[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1999, 20(2): 158-160.

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CHOICE OF AEROENGINE DESIGN DUTY CYCLES

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