have studied on “Vibration analysis

have studied on “Vibration analysis of Backhoe Loader chassis 770 model” is to find out
natural frequency of the chassis. Also in order to have vibration response at different location chassis harmonic analysis is
carried out. The Modal analysis & Harmonic analysis is carried out in Ansys workbench and in order to validate FE results
compare with experimental result. Natural frequency of the structural component should not match with the excitation frequency
in order to avoid resonance phenomenon. The modal analysis chassis has fixed support at rear axle and front axle. No external
force is applied to the chassis. Different mode shape and deformation contour at each frequency is shown below. From modal
analysis we can observed that natural frequency varies from 43.33 Hz to 69.252 which is far away from the engine excitation
frequency. In the static analysis we can observed that due sharp edges and sharp corners stress generated at some of the location
is higher than the permissible stress value. Also from this analysis we can observed the deformation pattern for each load cases.
In Ansys harmonic analysis we can observed vibration pattern in terms of acceleration at different location of the chassis and
hence conclude that all components of the acceleration are higher around 500 Hz In the experimental analysis we can observed
the vibration patterns in terms of acceleration at around 500 Hz are higher than the other frequency same as the Ansys simulation
results.