In order to improve the safety performance of light truck models,this paper proposes a design principle for vehicle crashworthiness based on collision energy management(CEM).Reasonable planning of rigid and energy absorbing areas within a limited space is conducted to ensure the survival space of passengers.Subsequently,in response to the emerging testing condition of commercial vehicle frontal double A-pillar impact test,this design principle is applied to the structural optimization of a certain light truck cab.Optimization strategies are proposed and engineering optimization plans are refined.The simulation and test results indicate that the optimization scheme has achieved good results in improving the intrusion of living space.Therefore,this design principle and its optimization strategy can provide direction for optimizing the crashworthiness of commercial vehicle cabs.
collision energy managementdouble a-pillar impact testenergy absorbing arearigid absorbing area
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