Study On The Simulation Of Vehicle Impact Vibration Based On ADAMS

With the development of the economy,people's living standard is getting better and better,the car is also gradually going into the thousands of families,people gradually begin to focus on the ride comfort and safety of structure from the beginning of the car having good power and economy,especially in extreme conditions,the comfort and safety of vehicles are of particular concern.Therefore,the research of vehicle modeling and simulation under the condition of pulse input will be an effective way to ride comfort and structural safety,which has important social significance and theoretical value.In this paper,based on the structure and function of the vehicle,the vehicle using the ADAMS simulation software was established,including vehicle model with multi degree of freedom suspension model,tire model,steering system model and body model,Taking the pulse input road surface with different parameters form as input,the vehicle at different speed under the condition of the comfort and safety of structure are simulated,obtained the maximum acceleration of the body and the tie rods and axles of the maximum acceleration value,the data basis for the subsequent research provided reliable.Then,the body vertical maximum vibration acceleration data with simulation results obtained by the analysis object,method of using multiple linear regression analysis to establish the maximum acceleration value regression model of the relationship between the body and the input pulse width,height and speed of vehicles,The characteristics of vehicle ride comfort under different pulse input conditions are analyzed,which provides a theoretical basis for the design and manufacture of automobile manufacturers and users.Finally,the maximum acceleration data of the vertical and horizontal vibration of the steering tie rod and the axle are obtained by the simulation results,the method uses multiple linear regression analysis to establish the maximum acceleration of the tie rod and steering axle value regression model of the relationship between the input pulse and the width and height of the vehicle speed and the analysis of the characteristics of the vehicle structure safety under different input pulse,provides a theoretical basis for the design and manufacture of automobile manufacturers and users.The results show that:(1)Based on the simulation analysis of ride comfort of vehicle under impact and vibration,and the vertical acceleration of vehicle as the evaluation criterion,the worst range of vehicle ride comfort is obtained;(2)The impact of vibration on the vehicle,and were in the axle and steering cross rod vertical acceleration simulation research to structure safety evaluation analysis,the axle and steering tie rod structure of the safety of the worst areas...