Design method of initial tangent arc height of main springs of high-strength three-stage gradual rigidity plate spring

Abstract

The invention relates to a design method of the initial tangent arc height of the main springs of a high-strength three-stage gradual rigidity plate spring and belongs to the technical field of vehicle suspension steel plate springs. The design method of the initial tangent arc height of the main springs of the high-strength three-stage gradual rigidity plate spring can achieve design of the main spring initial tangent arc height of the high-strength three-stage gradual rigidity plate spring according to the structural parameters, the elasticity modulus, the rated load and the residue tangent arc height requirements under the rated load of every main spring and every auxiliary spring. According to simulating and sample machine test, the designed main spring initial tangent arc height is reliable, and the design method of the initial tangent arc height of the main springs of the high-strength three-stage gradual rigidity plate spring is correct, and a solid technical foundation can be laid for design of high-strength three-stage gradual rigidity plate springs. The design method of the initial tangent arc height of the main springs of the high-strength three-stage gradual rigidity plate spring can improve the product design level, quality and performance, ensure that the initial tangent arc height, the tree-stage gradual gaps and the contact load of every mains spring and every stage of auxiliary spring can meet design requirements, improve the vehicle driving stability, reduce the design and test cost and accelerate the production development speed.

Description

technical field [0001] The invention relates to a vehicle suspension leaf spring, especially a design method for the initial tangent arc height of a main spring of a high-strength three-stage gradually changing rigidity leaf spring. Background technique [0002] With the emergence of high-strength steel plate materials, high-strength three-stage gradient stiffness leaf springs can be used to meet the design requirements of suspension gradient stiffness and suspension bias frequency under different loads, and further improve vehicle ride comfort. Among them, the initial tangent arc height of the main spring not only affects the design of the initial tangent arc height of the auxiliary springs at all levels, but also has an important impact on the three-stage gradient clearance, contact load, gradient contact stiffness, suspension bias frequency, and vehicle ride comfort. The initial tangent arc height of the main spring is determined by the remaining tangent arc height under ...

AI Technical Summary

Problems solved by technology

The initial tangent arc height of the main spring is determined by the remaining tangent arc height under the rated load and the deflection of the main spring under the rated load. The structure of the spring and the auxiliary springs at all levels is related to the load, and it is also related to the size of the contact load. Therefore, according to the research data, there is no reliable initial tangent arc of the main spring of the high-strength three-stage gradient stiffness leaf spring at home and abroad. high design method

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