Drop tests of lightning protection seats in simulation of explosion impact load

DOI:	10.11809/bqzbgcxb2023.06.021
Keywords:	lightning protection seat; explosion shock; waveform simulation; drop test; passenger protection
Abstract:	To improve the level of passenger protection and solve the shortcomings of the explosion protection test of a real vehicle, this paper discusses the method of evaluating the performance of lightning protection seats through drop test simulation. The approximate half sine pulse is used to simulate the explosion impact load, and the influence of the explosion impact load on the bottom of the vehicle is analyzed by means of the correlation between the acceleration peak value with velocity variation and the dummy damage, and the overall design of a simulated explosion drop test bench is completed. Through the comparison of the 1.5 meter drop test and the specific explosion shock, the consistency of the energy absorption stroke of the lightning protection seats and the response of the dummy pelvic acceleration, head synthetic composite acceleration and neck axial force are verified. The results show that, under the vehicle bottom explosion condition, the drop test can better simulate the motion response of the lightning protection seat and the damage response of the dummy within an allowable error range.
Published:	2023-06-28
PDF HTML