The computer simulation method is used to study the crashworthiness of car bumper system. Firstly, the CAD model of the car and bumper system is established in CATIA. The pre-processing for the model is finished in Hyper-Mesh and the finite element model is established. Then the process of crash simulation is calculated in Pam-Crash. The simulation results are compared with the test results to verify the accuracy of the finite element model. Finally, the low-speed crash simulation of the bumper system is conducted. The crash displacement and deformation of the bumper system are forecast through the process of simulation, which can provide a reference for the next design and improvement.
Thispaper puts forwards a design method base on a electric power-assisted HybridElectric Vehicle (HEV), which take dead-weight into account to design itsparameter of pivotal components among many actual design methods. Then simulatingand analyzing are made in ADVISOR about its fuel economyand emission. The results of simulation indicated that the fuel economy andemission levels of electric power-assisted HEV which take dead-weight intoaccount to choose its powertrain parameters is far better than the vehiclewhich used the conventional method.
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