Outrigger is mounted on the test vehicle during handling test maneuvers, such as double lane change, constant radius cornering, J-turn, etc. The aim of these outriggers is to protect the driver & vehicle from rollover during testing of vehicle electronic stability control systems under various dynamic maneuvers as per AIS 133. Outrigger design has to be achieved within a certain mass and roll moment of inertia as per AIS 133 guidelines.
The paper discusses design which includes load path analysis, material comparison to maximize strength per unit weight, shape, dimensional finalization, etc. Torsion is generated when the skidpad comes in contact with the ground which we have tried to balance in the free body diagram (FBD) by changing the skidpad contact point for reducing the stress.
Finite element analysis is done on the design developed after setting boundary conditions arrived from FBD. The developed design is then manufactured and successfully implemented in the testing of vehicles as per AIS-133.