To further study the drive axle housing operating characteristic of heavy truck
by using finite element method
Miner linear damage accumulation theory
Goodman principle and the effect of the road
the further analysis of the conditions that fit the actual working conditions
the variation law of stress
deformation and life and safety coefficient of the drive axle housing of heavy truck under the actual road is studied.The results show that
through re-calculation model SN curve correction and import the effect of the road load spectrum
the drive axle housing performance calculation parameters of this type of heavy truck and the actual product bench test results are the same
the regularity maximum stress is exist in the drive axle housing parts of heavy truck
the first six axle natural frequencies are far away from the actual working conditions of road excitation frequency
the most injuries of the drive axle housing of heavy truck occur under high stress amplitude and the fatigue life satisfies the requirement of enterprise.