Influence of Manufacturing Technology of Stator Blade on Aerodynamic Performance of High Pressure Compressor
It is concluded that the stator blade component of aero engine high pressure compressor is usually manufactured by me-chanical processing.In order to reduce the cost and shorten the manufacturing cycle,the manufacturing process of sheet metal brazing has been applied in the advanced aero engine to produce the stator blade component of high pressure compressor in bulk.And the man-ufacturing process of sheet metal brazing will result in a deviation in the geometrical characteristics of blade profile and flow path,which affects the aerodynamic performance.Talking a high-load 10-stage axial flow compressor outlet stage as the research object,the influ-ence of sheet metal brazing on the performance of high pressure compressor was evaluated,and the evaluation method of sheet metal brazing on the aerodynamic performance was proposed.The results show that the flow rate of the compressor is about 1.41％lower and the peak efficiency is 0.41％lower,and the increase of the blade profiles error is the main reason for the deterioration of performance.With the increase of blade profile error,all stage characteristics show a trend of decreasing the matching point pressure ratio and the peak efficiency,and the change of stator profile has little influence on the downstream rotor performance,the change of the compressor performance is mainly caused by the change of stator loss.
aero enginehigh pressure compressornumerical studysheet metal brazingblade profiles errorangle of twist
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维普
