Shock and Response Spectrum Analysis of Automobile Rear Axle Housing

Rear axle housing is an important element to house differential mechanism with body loads transferred through support brackets. These members are subjected to various loads during its operation. So a check is required to maintain safety of the problem. In the present work, a rear axle housing is checked for structural safety under leak testing pressures. Initially the structure is built using a three dimensional software based on the autocad representation of the problem. Hypermesh is used for noble excellence meshing. Then it is imported to Ansys for analysis. Initially analysis is carried out to find the optimum constraint to minimize the distortion in the member due to internal leak testing pressures. Initial constraint provided on the top and bottom results, shows failure for safety. Further with the dome region constraint the analysis shows safety for distortion as the deflection developed is less than the allowable deflection. Further the analysis is carried out for the spectrum loads for road vibration based on the mil standards. The spectrum data is given as input which combines the results of modal frequencies for amplified displacements. The results shows safety of the housing for the given loads. Further a transient analysis is carried out for the given load history data based on mil standards. A triangular pulse data is considered as the transient vibration data. The results shows safety of the housing for the given loads. Altogether the results are interpreted with essential graphical plots.