Research on Airbag Parameters Matching in the Vehicle Crash Simulation

Vehicle safety airbags can protect occupants from vehicle collisions, but there are still some shortcomings, thus need to be constantly improved. In occupant restraint system simulation, the establishment of a reasonable airbag model determines whether the simulation results are consistent with the actual test results. The aim of this study is to establish a precise airbag model for vehicle occupant restraint system by using MADYMO. The study is based on two parts, Firstly, the linear impact component test and correlation study were investigated. In this part, the effect of airbag parameters on correlation results were discussed, a suitable airbag model was built, the correlation results were compared to test data. Secondly, a full frontal sled test model correlation was conducted and compared to the test data to verify the airbag model which is precise for security simulation research of the occupant restraint system. The validation of this methodology was performed through comparing the simulation results with test results of various test setups and airbag designs. The results indicate that the airbag parameters have a good consistency with the actual test results, thus improve the accuracy of the test results. The study provides a method for the development of the restraint system and simulation of engineering practice.