As part of a wider light commercial vehicle programme, led by Corum Technology, Randle Engineering were tasked with producing a concept rear leaf spring design and conducting system level and vehicle level analysis.
Randle Engineering developed a concept two leaf spring which met the required package limitations and system level targets. A non-linear FEA study was conducted in MSC APEX utilising the NASTRAN solver to assess the stress and strain across the spring’s range of travel and a multi-body systems model of the rear suspension was developed in MSC Adams Car to conduct a desktop K&C analysis. This suspension MBS model was then integrated into a vehicle MBS model and the vehicle dynamics were assessed over a range of driving manoeuvres.
Successful concept design of a rear leaf spring which met the required suspension targets, vehicle level targets and package constraints.
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