Failure analysis and prevention of high pressure turbine in PW4000 engine

Abstract

Abstract:

Failure statistical analysis data of PW4000 engine in service is carried on in an aircraft maintenance enterprise.Results show that the failure positions of PW4000 engine high pressure turbine mainly concentrate on high pressure turbine blades,vanes and seal;main failure modes are ablation,crack,corrosion,coating shedding,seal damage and blade elongation. On the basis of the statistical analysis,the phenomena and mechanisms of failure modes are summarized and analyzed and the corresponding processing methods are put forward.

Key words: high pressure turbine, failure, prevention, crack, damage, corrosion

CLC Number:

V267
TG174.4

ZHANG Xue-yang,WANG Wei. Failure analysis and prevention of high pressure turbine in PW4000 engine[J]. .

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Failure analysis and prevention of high pressure turbine in PW4000 engine

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