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

A determination method, a non-isostructural technology, applied in instruments, special data processing applications, electrical digital data processing, etc., can solve the problem that can not meet the requirements of the design and characteristic simulation of the non-isostructural superimposed valve plate of the automobile shock absorber, finite element method The simulation software cannot give the analytical calculation formula and other problems

Inactive Publication Date: 2016-06-15
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1: The inner radius r of the non-isostructural superimposed valve plate of an automobile shock absorber a =5.0mm, valve port radius r k = 8.0mm, elastic modulus E = 200GPa, Poisson's ratio μ = 0.3, the thickness, number and outer radius of the stacked valve plates are h 1 = 0.25mm, n 1 = 1, r b1 = 8.5 mm; h 2 = 0.20mm, n 2 = 1, r b2 =7.0mm; h 3 = 0.15mm, n 3 = 1, r b3 =6.0mm, and the pressure p=3.0MPa on the superimposed valve plate is calculated for the non-isomorphic superimposed valve plate of the automobile shock absorber.

[0043] (1) Determine the outer radius unequal coefficient η of each non-isostructural stacked valve plate of the automobile shock absorber i :

[0044] According to the outer radius r of the non-isostructural superimposed valve plate of the automobile shock absorber b1 =8.5mm, r b2 =7.0mm, r b3 =6.0mm, inner radius r a =5.0mm, determine the outer radius unequal ratio η of each superimposed valve plate i ,which is

[0045]...

Embodiment 2

[0071] Example 2: The inner radius r of the non-isostructural superimposed valve plate of a certain automobile shock absorber a =5.0mm, valve port radius r k = 8.0mm, elastic modulus E = 200GPa, Poisson's ratio μ = 0.3, the thickness, number and outer radius of the stacked valve plates are h 1 = 0.3mm, n 1 = 1, r b1 = 8.5 mm; h 2 = 0.20mm, n 2 = 1, r b2 = 7.0mm, the pressure p = 3.0MPa on the non-isomorphic stacked valve plate.

[0072] Calculate according to the steps of Example 1, namely:

[0073] (1) Determine the outer radius unequal coefficient η of each non-isostructural stacked valve plate of the automobile shock absorber i :

[0074] According to the outer radius r of the non-isostructural superimposed valve plate of the automobile shock absorber b1 =8.5mm, r b2 =7.0mm, radius r a =5.0mm, determine the outer radius unequal ratio η of each superimposed valve plate i ,which is

[0075] η 1 = 0 ...

Embodiment 3

[0093] Example 3: The inner radius r of the non-isostructural superimposed valve plate of a certain automobile shock absorber a =5.0mm, valve port radius r k = 8.0mm, elastic modulus E = 200GPa, Poisson's ratio μ = 0.3, the thickness, number and outer radius of the stacked valve plates are h 1 = 0.2mm, n 1 = 1, r b1 = 8.5 mm; h 2 = 0.15mm, n 2 = 1, r b2 =7.0mm, the pressure p=2.5MPa on the non-isomorphic superimposed valve plate.

[0094] Calculate according to the steps of Example 1, namely:

[0095] (1) Determine the outer radius unequal coefficient η of each non-isostructural stacked valve plate of the automobile shock absorber i :

[0096] According to the outer radius r of the non-isostructural superimposed valve plate of the automobile shock absorber b1 =8.5mm, r b2 =7.0mm, inner radius r a =5.0mm, determine the outer radius unequal ratio η of each superimposed valve plate i ,which is

[0097] η 1 = 0...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 周长城赵雷雷宋群
Owner SHANDONG UNIV OF TECH
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