Optimization Design Of Double-front Axle Steering System And Power-train Of Automobile And Research On Similarity

Firstly, this paper discusses the development actuality of the research on double-front axle steering system and power-train of automobile. Based on the structure of the design experiences from others, the kinematics formula of double-front axle steering system is fetched, and the mathematical model of optimization design of double rocking arms mechanism and steering trapezium mechanism is established by space geometry method. Considering the difference between the real steering angle from wheels and the ideal steering angle from the ideal formula as the objective function, the optimization design method of double-front axle steering system is presented. Then according to summarizing the value indexes of the power performance and the economy performance, the optimization mathematical model of the parameters of power-train is established. The power and economy performance comprehensive function is selected as the objective function and the power performance as the constrain equation in the paper, and the optimization design method of the parameters of power-train is presented.Secondly, based on the theory analysis and the establishment of the mathematical model of optimization design, uses the Optimization Toolbox in MATLAB software to optimize the parameters of double-front axle steering system and power-train with some prominent results. This provides a reasonable project for the optimization design of automobile.Finally, the paper builds the similarity analysis model taking use of the similarity theory and provides a new train of thought of the remodeling design of steering system and optimization matching of power-train from the point of view of the similarity of system.