A Method for Determining the Deformation of Non-isostructural Superimposed Valve Plates of Automobile Shock Absorbers

Abstract

The invention relates to a method for calculating the deformation of non-equal structure superposed valve plates of a vehicle shock absorber and belongs to the technical field of the shock absorber. The method is characterized in that according to the thickness, the number and the outer diameter of the non-equal structure superposed valve plates, the outer radius unequal rate factor and the equivalent thickness of each superposed valve plate are determined and the equal thickness of the non-equal structure superposed valve plates is calculated; according to the structure and material characteristic parameter of the first superposed valve plate, the deformation factor at any radius r of the non-equal structure superposed valve plates is calculated, so that the deformation of the non-equal structure superposed valve plates of the vehicle shock absorber at any radius position is calculated. Illustration calculation and ANSYS simulation verification show that the calculating method for the deformation of the non-equal structure superposed valve plates of the vehicle shock absorber is correct, the design of the vehicle shock absorber with the non-equal structure superposed valve plates can be realized by the method, the design level, the quality and the performance of a product are improved, the design requirements on the characteristics of the shock absorber and the stress strength of the valve plates are met, and the design and experiment cost and the production cost are reduced.

Description

technical field [0001] The invention relates to a shock absorber, in particular to a method for determining the deformation of an anisotropic stacked valve plate of an automobile shock absorber. Background technique [0002] In order to meet the characteristics of the shock absorber and the stress intensity of the valve plate, the actual automobile shock absorber can use multiple non-isostructural superimposed valve plates, that is, the superimposed valve plates with equal inner radii and unequal outer radii; The stacked valve plates of the same structure can also avoid the use of the maximum limit gap adjustment gasket, so the production cost of the shock absorber can be reduced, and it has important economic and social benefits. However, at present, no simple and reliable calculation method has been given for the deformation calculation of non-isostructural superimposed valve plates of automobile shock absorbers at home and abroad. Most of them can only use ANSYS finite el...

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Problems solved by technology

However, at present, no simple and reliable calculation method has been given for the deformation calculation of non-isostructural superimposed valve plates of automobile shock absorbers at home and abroad. Most of them can only use ANSYS finite element simulation software to establish solid simulation models for Numerical simulation of the deformation of the isostructural superimposed valve plate is carried out to obtain the deformation simulation value of the non-isostructural superimposed valve plate under a given pressure. However, because the finite element simulation software cannot give an analytical calculation formula, it cannot meet the requirements of the automobile shock absorber. The actual design and characteristic simulation requirements of non-isomorphic stacked valve plates

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