PAB Deployment Simulation with Curved Retainer

Some passenger side airbags (PAB) are mounted on the cylindrical inflator directly through retainer with similar curvature of the inflator. To accurately simulate the deployment of such a PAB, a fine-tuned model using additional constraints in LS-DYNA are employed in this paper to simulate the curved mounted PAB. The results from the fine-tuned model are compared with the simulation results from the PAB models with simply fixed bag mouth. It is found that by approximating the curved mounting with simply fixed airbag mouth introduces negligible error in airbag deployment simulation.