The calculated investigation of influence of autofrettage on the cycle durability of HPT disc
Keywords:
autofrettage; stress?strain state, cycle durability; turbine disk; spin rig.Abstract
The results of computational investigations of the autofrettage operation of the high pressure turbine disk (HPT) aircraft engine. The change in the stress?strain state (SSS) of the blank in cycles during autofrettage and subsequent operation and change at the operation without autofrettage. The comparative analysis of the calculated cycle life of a blank in working conditions taking into account prior autofrettage and without it. The results of computational investigations have shown that the autofrettage operation of the HPT disc blank increases its cycle durability.Downloads
Published
2018-03-07
Issue
Section
AIRCRAFT AND ROCKET AND SPACE TECHNOLOGY