Simulation analysis of new safety impact regulation on cab of commercial vehicle

Safety for the occupants of the cab is a prime consideration for structure design on commercial vehicle. The cab shall be designed and attached to the vehicle in such way that in the event of collision exhibit a survival space for the occupants,meanwhile,the cab must remain attached to the chassis frame. The new more legal and strict safety test requirements are specified by proposal for ECE R29-03[1] of amendments to ECE R29-02[2].A computational simulation method for Front impact test, A-pillar impact test, Roof strength test of ECE R29-03 was introduced. The non linear explicit finite element program LS-DYNA was used for that purpose. In this paper,the application of this numerical method by the example of a real heavy truck of FAW having been passed according to ECE R29-02 is presented and compared with new requirements of ECE R29-03. Finally,the paper gives some feasible improvement measures for cabin structure design in order to pass the approval test of ECE R29-03.