Rear Differential Mounts
Both rear differential mounts withstand the motor’s pulling load and the differential’s vibration during operation.
Rear diff mounts assembled to chassis
I designed and ran FEA analysis for both rear differential mounts to acquire the reaction forces at the top and bottom clevises, thus providing vital data for the Chassis team to run FEA on our entire chassis. The bearing force was also calculated to provide accurate data of the loads on the mount. Other highlights include:
Drafted more than 5 iterations of the design; Calculated the hole distance for the eccentric chain tensioning system.
Calculated the loads on both mounts using data from the bolt bearings calculation, then performed the FEA on the mounts.
One of the reaction forces reaches nearly 7000 N, which is significant for the Chassis team to take into account.
The safety factor of 2.9 allows both mounts to tolerate additional load.
Roles
Mechanical Analyst
Tools
SolidWorks | ANSYS Mechanical | SpaceClaim
2021 mount
2022 mount
2022 mount’s mass is reduced by more than 25% compared to 2021 mount’s mass.
↑ Load calculations for both mounts
Deformation and reaction forces of the left mount.
The right mount has 6 times the load of the left mount, thus experiencing higher stress and reaction forces