In order to solve the problem of negative volume and long computation time caused by large deformation of aviation seat cushion in the impact simulation of aviation seat finite element models,a lumped parameter model of aviation seat cushion consisting of parallel nonlinear springs and linear damping is proposed.Firstly,the static and dynamic compression test of the aviation seat cushion material is carried out,and the finite element model and the lumped parameter model of the aviation seat cushion are established respectively.Secondly,the spring damping parameters of the lumped parameter model are fitted according to the results of finite element simulation,and the dynamic re-sponses of the two models are compared under 14,16 and 19 g delta pulses.The results show that the consistency between the two models is good,and the lumped parameter model of the aviation seat cushion established in this paper can provide support for the simplification of the complex finite element model containing the seat cushion.
aviation seat cushionlumped parameter modelstatic and dynamic compression testfinite element model
维普
万方数据
