Design And Optimization On Chassis Of Multi-functionalal Vehicle For Road Maintenance

As the mileage of roads increases year by year,in order to increase the efficiency of road maintenance work and reduce the risk of safety accidents in road maintenance,multi-purpose vehicles and related maintenance equipment used for road management have gradually received attention.This paper puts forward the concept of overall design of multi-purpose vehicles for road custody operation based on functional requirements.Based on the work conditions,the stability and influencing factors are studied and analyzed.Based on this idea,this article has carried out and completed the following research:Firstly,according to the design index requirements and operating conditions,the overall design plan for the road maintenance operation multi-purpose vehicle is established,and the selection of the chassis is completed according to the operation requirements under different working conditions,and the shaft is multi-functionally operated.Load distribution calculation and counterweight calculation.Secondly,the analysis of the instability factors and analysis methods of the utility vehicle in road custody operations was conducted.Based on the Lagrangian equation and dynamic analysis method,a two-degree-of-freedom dynamic model was established to analyze the lateral stability for different working conditions.Thirdly,through the ADAMS multi-body kinematics and dynamics analysis software,the sub-models of the multi-purpose vehicles for road custody operations were established,and the overall assembly was performed to verify the correctness of the model.Longitudinal stability and lateral stability analysis according to different working conditions.Finally,taking the full-load steering condition test as an example,the influence of the parameters such as the height of centroid,the position of the center of mass,the position of the center of mass,the wheelbase,and the quality of the entire vehicle on the stability of the multi-purpose vehicle for road maintenance operations was analyzed.The sensitive influencing factors were determined,and through different combinations of these influencing factors,several groups of optimized combination schemes were selected through analysis,and the scheme for seeking optimal stability of the vehicle was again simulated and analyzed.