Analysis And Study And Improved The Design Of The Tapered Leaf Spring For The Light Truck

With the rapid development of highway,Road conditions have been greatly improved and enhanced, Good roads makes the original feel of the conditions to become sensitive to vibration, Front suspension system that affect vehicle ride comfort of the important system in the truck, In order to improve the truck's ride comfort, consequently, Study the leaf spring of variable stiffness.In this paper, light truck leaf spring front suspension system as the main object of study, By using the basic theory of leaf spring design, the leaf spring was designed and improved by the use of leaf spring design the basic theory, Make to creat the three-dimensional by Ug In the modeling process , Use the Pre-treatment with a powerful tool in the Automesh HyperMesh to automatic mesh, Fast and accurate mesh, And meshing with Qualityindex quickly check the quality of mesh, Re-use of excellent post-processing tool for analysis of LS-DYNA simulation, By LS-Propost post-processing tools to get the stress and deformation cloud, Clearer analysis of the simulation, In the no-load and full load conditions, in three hour segments of these two leaf spring test verification, Verify the frequency of the vibration spring biased impact of incentives, Verified using simulation to improve the design of practical rationality theory,Verified by testing the feasibility of practical implementation. In the actual vehicle leaf spring suspension system to improve the design process, Of the light truck leaf spring suspension system design of the new ideas and new methods were meaningful to explore.This content can be summarized as the main points:After reading the extensive literature on the basis of, Brief description of the leaf spring suspension system, Analysis of its trends.Brief description of ordinary and less multi-piece leaf spring leaf spring design of the basic theory, The leaf spring of varying stiffness was design by the basic theory, Comparative analysis of the general multi-piece leaf spring and leaf spring of variable stiffness in terms of stress and migraine frequency difference,As the leaf spring of variable stiffness obtained multi-leaf spring design conclusions.Briefly introduced the powerful pre-processing software HyperMesh and post-processing software LS-DYNA, And a brief overview of the basic theory of LS-DYNA.Describes the type of finite element model type, Comparative analysis of the results of the analysis of 2D and 3D elements, Obtained using 2D unit mesh possible conclusions, On how to divide the grid and how to do post-processing to do a brief overview of, Finite element model for the next simulation and analysis to lay the foundation.LS-DYNA using post-processing software, for the stress and deformation, comparative analysis of the simulation, Use of company's existing test equipment and means of testing experimental verification. Through simulation and test results of comparative analysis to verify the change in stiffness of leaf springs used on the feasibility of the model.Significance of this study:The actual vehicle leaf spring front suspension design as the basis of improved, Automotive leaf spring of variable stiffness in depth analysis, research, And practical application to improve the truck's front suspension design which effectively verify the feasibility of improving the design.Actual models by analysis of leaf springs and improved design, the paper introduces the design of variable stiffness spring front suspension of the new theoretical approaches and ideas.Based on the actual model, Variable stiffness of leaf spring suspension for a meaningful exploration,research, validation. The same industry, a new design ideas and methods, Making the research has applicability, research, promotional.