Vehicles Transient Dynamic Analysis Under The Impact Loading

Vehicle dynamics is one of the main discipline that the car as a dynamic system tostudy, discuss the mathematical model and respond, internal relations and rules embodiedvehicle performance, rapid growth with the development of the automotive industry andcomputer simulation technology.In the current vehicle dynamics analysis, vehicle dynamicsmodels are not used considering the person quality of the car and the road random input, sovehicle dynamics model can not accurately and fully reflect the dynamics of the car, notaccurately reflect the performance and comfort of the automotive vehicle.In a dynamic environment, in order to predict people-car system vibrationresponse characteristics and vehicle ride comfort，this paper based on previous theory andpractice, fully consider the seating systems and person quality of automotive, establish9degrees of freedom "road-car–person" vehicle system model that fully consider the seatingsystems and person quality of automotive. Establish the finite element model of the vehiclesystem by the software of ANSYS, And using software simulation of dynamic analysismodule simulate vehicle dynamics about different parts of the car. The simulation resultsshow that: The simulation model established by this method can be a good response causedby the vehicle system random excitation, attenuation of the road can be a good incentive forthe human body impact load displacement and acceleration response and improve the vehicleride comfort under the appropriate parameters to match.