Research on Structural Optimization of the Side Door Beam in SUV Based on Side Crashworthiness Simulation

The side impact accidents have proporioned about 30% in all crash accidents in China but there is no any relative regulations in effective. Furthermore many automobile manufacturers have no any relative research on side ipmact. So it is very important to do research on side crashworthiness. Based on a certain SUV in China, this paper simulates its side impact according to the European side impact regulation ECE R95. After the simulation, some analysis is done in crash deformation, crash energy and acceleration of key point. Then the structure of side door beam is optimized. When impact happens, the optimized structure has a better performance than the original one in deformation and absorbing energy by test simulation. So the crashworthiness of side impact and the safety of both driver and passenger are improved by this optimization. This peper provides a feasible method for further research and improvement of the side impact and the side crashworthiness.