Fatigue test for tension shaft of a turbofan engine
HUANG Ai-hua
ZHOU Jun
QIAO Hui-fang
Abstract：Aiming at the fatigue failure problem of tension shaft for a turbofan engine in the working environment, the theory model based on the combination between finite element method (FEM) and the Miner linear cumulative damage theory was proposed.The calculation of standard cycle load spectrum was implemented under the condition of knowing the materials and geometry size of tension shaft.Furthermore, the fatigue life test and analysis for the fan tension shaft were carried out.The results show that in the test, the tension shaft can bear 30000 times of test cycle load, and the tension shaft does not exist such failure phenomena as the cracks, cutting of convex shoulder and broken buckle of thread after the test.The security service life was determined under the standard cycle load.Through performing the fatigue test research and simulation calculation analysis for the tension shaft, the feasibility of both reliability life prediction method and model is verified.
Keywords：turbofan enginetension shaftload spectrumfinite elementMiner linear cumulative damage theoryfatigue failurereliability lifeexperimental test
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 395-400 )