This article studies the design of the rear suspension with a four link mechanism and analyzes the characteristics of the suspension type.Through adoption of motion simulation of UG software,it studies the stiffness curve of the rear shock absorber.At the same time,the force situation of the connecting object is simulated and analyzed.By comparing the changes in spring stiffness,force situation,and compression stroke etc.,a complete corresponding relationship is formed between the rear wheel load,rear wheel displacement size,and compression situation,Ultimately,the optimal design results are obtained by optimizing parameters,improving the design efficiency.
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