Failure Analysis and Improved Design of Orifice Plate Falling Off of Air Bleed Air Pipeline of A Certain Type of Aero Engine
In this paper,in view of the problem of the orifice plate falling off of the air bleed air pipeline dur-ing the long-term assessment and test run of a certain type of aero engine,the fault tree tool and simulation soft-ware are used to successfully locate the cause of the problem.According to the cause of the problem,the sealing structure and throttling structure at the bleed air interface were optimized,and the correctness and effectiveness of the optimization scheme were proved through simulation calculation,flow calculation and test verification,which provided a strong guarantee for the design of engine model.
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