Abstract
Drive axle housing is an important part in heavy truck. 3D model of the axle housing was made by software UG. The finite element model of automobile drive axle housing was built with simulation software NX.NASTRAN and the finite element modal analysis was achieved. 1-6 order natural vibration frequencies were got under three kinds of working condition which were the maximum traction force, the maximum vertical force and the maximum lateral force. The vibration frequency was far greater than the natural frequency in the actual work. The security of the drive axle housing has been validated.
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