Handling Loading Dynamics in Chassis Bolted Connections Through Friction Increase
2022-01-0241
03/29/2022
- Content
- With the trend towards electrification, the number of vehicle variants (ICE, hybrid, BEV) for a like model are increasing, or for the case of BEVs, there are multiple models utilizing the same skateboard design. These vehicle variants can create challenges on how to handle the differences in weight and loading dynamics while utilizing the same carry-over chassis design. In some cases, the solution to this problem can be solved by increasing the shear capacity of the critical bolted connection. This can be done by increasing the static coefficient of friction between the mating components. FEM results are shared on a friction enhancement solution and the difference it can make on load capacity for a weight bearing connection in chassis. The solution is effective on all common material types including aluminum and e-coated steel. Comparisons are made to bolt design solutions, proving that friction increase can significantly improve the performance of the bolted connection without a need for a design change.
- Citation
- Jackowski, J., Milton, C., Ness, J., and Grimm, F., "Handling Loading Dynamics in Chassis Bolted Connections Through Friction Increase," SAE Technical Paper 2022-01-0241, 2022, .