Computing method for equivalent thickness of hydraulic buffer isomorphic annular sandwich valve plates

A technology of hydraulic shock absorbers and calculation methods, which is applied in the field of hydraulic shock absorbers, can solve the problems of lack of analytical calculation formulas or calculation methods, difficulty in satisfying shock absorber design, production and characteristic simulation, etc., and achieve fast calculation and calculation methods precise effect

Inactive Publication Date: 2013-09-25
SHANDONG UNIV OF TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, for the calculation of the equivalent thickness of the shock absorber isomorphic annular superposition valve plate, there is no simple and accurate calculation method at home and abroad. The equivalent thickness of the valve plate is numerically simulated to obtain an approximate equivalent thickness value. There is a lack of simple, accurate and reliable analytical calculation formulas or calculation methods, and it is difficult to meet the requirements of the actual design, production and characteristic simulation of the shock absorber.

Method used

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  • Computing method for equivalent thickness of hydraulic buffer isomorphic annular sandwich valve plates
  • Computing method for equivalent thickness of hydraulic buffer isomorphic annular sandwich valve plates
  • Computing method for equivalent thickness of hydraulic buffer isomorphic annular sandwich valve plates

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Embodiment one: The radius of the inner circle of a shock absorber with an isostructured annular superimposed valve plate r a =5.0mm, outer circle radius r b =8.5mm, modulus of elasticity E =200GPa, Poisson's ratio mu =0.3, the thickness and number of superimposed valve plates are respectively h 1 =0.1mm, n 1 =3; h 2 =0.15mm, n 2 =2;...; h 3 =0.2mm, n 3 =1.

[0017] According to the thickness and the number of circular superimposed valve plates of a certain shock absorber h 1 =0.1mm, n 1 =1; h 2 =0.15mm, n 2 =2;...; h 3 =0.2mm, n 3 =3, the equivalent thickness of the isomorphic annular superimposed valve plate h e for:

[0018] =0.260855mm.

[0019] According to the structural parameters, material characteristic parameters, thickness and number of superimposed valve plates of the shock absorber in Example 1, and the equivalent thickness h e =0.260855mm single-piece annular valve slice, use ANSYS to model the stacked valve slice and ...

Embodiment 2

[0021] Embodiment two: The structural parameters and material characteristic parameters of a shock absorber with isostructured annular superimposed valve plates are exactly the same as those in Example 1, and the thickness and number of superimposed valve plates are h 1 =0.1mm, n 1 =1; h 2 =0.15mm, n 2 =1; h 3 =0.2mm, n 3 =1.

[0022] According to the thickness and number of stacked valve plates h 1 =0.1mm, n 1 =1; h 2 =0.15mm, n 2 =1; h 3 =0.2mm, n 3 =1, the equivalent thickness of the annular superimposed valve plate of the shock absorber h e for:

[0023] = 0.231303mm.

Embodiment 3

[0024] Embodiment three: The structural parameters and material characteristic parameters of a shock absorber iso-structure annular superimposed valve plate are exactly the same as those in Example 1, and the superimposed valve plate only has thickness h 1 =0.15mm, the number of pieces n 1 =3.

[0025] According to the thickness of the superimposed valve plate h 1 =0.15mm and the number of pieces n 1 =3, the equivalent thickness of the annular superimposed valve plate of the shock absorber h e for:

[0026] = 0.216337mm.

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Abstract

The invention relates to a computing method for equivalent thickness of hydraulic buffer isomorphic annular sandwich valve plates, and belongs to the technical field of buffers. In the prior art, the reliable computing method for the equivalent thickness of the hydraulic buffer isomorphic annular sandwich valve plates is not available, and thus the actual requirements for design, production and characteristic simulation modeling of the buffer can be not met. With adoption of the method, according to thickness and plate number of the annular sandwich valve plates with same material, equal inner diameter and equal outer diameter, the equivalent thickness h<e> of the sandwich valve plates, equivalent to that of a signal valve plate, can be computed accurately and quickly; through comparison with the ANSYS simulation result, the fact can be confirmed that the computing method for the equivalent thickness of the hydraulic buffer isomorphic annular sandwich valve plates is accurate and reliable, and further, the reliable computing method for the equivalent thickness of the isomorphic annular sandwich valve plates is provided for detachment design and stress intensity check of the buffer sandwich valve plates as well as characteristic simulation modeling of the buffer.

Description

technical field [0001] The invention relates to a hydraulic shock absorber, in particular to a method for calculating the equivalent thickness of an annular superimposed valve plate of a hydraulic shock absorber. Background technique [0002] Due to the constraints of various shock absorber characteristics requirements and valve plate stress strength, production process and cost, the actual shock absorber throttle valve plate mostly adopts multiple pieces of the same material, and the radius of the inner circle and the radius of the outer circle are equal. And multi-piece annular valve plates with equal or unequal thickness are superimposed, among which, the thickness of the valve plate mostly adopts the standard thickness series, that is, h 1 , h 2 ,..., h n , to reduce manufacturing costs. In the actual design of the shock absorber, the design of the thickness of the shock absorber valve plate is usually "single-piece thickness valve plate". If the actually designed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 周长城刘小亭解家报
Owner SHANDONG UNIV OF TECH
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