Design method for rebound valve plate thickness of hydraulic oscillating damper

Abstract

The invention relates to a design method for rebound valve plate thickness of a hydraulic oscillating damper, which belongs to the technical field of oscillating dampers. The design method is characterized by comprising the following steps: a. determining the optimal design speed point and corresponding oscillating damper damping force of the thickness of a rebound valve plate; b. determining throttling pressure and flow of piston gaps; c. determining flow of a piston hole; d. determining the equivalent length of the piston hole; e. determining the throttling pressure of the piston hole; f. determining the pressure borne by the rebound valve plate at the optimal design speed point; g. determining the pressure borne by the rebound valve plate at the initial valve opening; and h. determining the design thickness h of the rebound valve plate, actual thickness of stacked valve plates hi, and plate number ni. The method can conduct optimal design of the speed point, and accurate design of the rebound valve plate thickness of the oscillating damper according to the oil line of initial valve opening of the rebound valve. Therefore, by utilizing the design method, a reliable design value of the rebound valve plate thickness can be obtained, repeated testing and modification are avoided, design and test expenses are reduced, and the development speed of the oscillating damper is accelerated.

Description

technical field [0001] The invention relates to a hydraulic shock absorber, in particular to a design method for restoring the thickness of a valve plate of a hydraulic shock absorber. Background technique [0002] The damping characteristics of a hydraulic shock absorber are mainly determined by the parameters of the shock absorber recovery valve and compression valve. Among them, the thickness of the valve plate has an important impact on the characteristics of the shock absorber, the damping matching of the suspension system and the ride comfort of the vehicle. At present, there is no accurate and reliable design method for the valve plate thickness design of the cylinder hydraulic shock absorber in foreign countries. Most of them first determine a valve plate thickness value based on experience, and then finally determine the design parameters through repeated tests, verification and modification methods. The main reason is the lack of reliable shock absorber design tech...

AI Technical Summary

Problems solved by technology

At present, there is no accurate and reliable design method for the valve plate thickness design of the cylindrical hydraulic shock absorber in foreign countries. Most of them first determine a valve plate thickness value based on experience, and then finally determine the design parameters through repeated tests, verification and modification methods. The main reason is the lack of reliable shock absorber design technology. For hydraulic shock absorbers, there has not been given an accurate valve deformation analysis formula that can be used for valve plate thickness design. There is a lack of accurate and reliable design methods, and it is difficult to establish an accurate throttle valve. The mathematical model of sheet thickness design, therefore, the hydraulic shock absorber has not yet achieved modern CAD design

In my country, a breakthrough has been made in the parameter design of the throttle valve of the hydraulic shock absorber. For example, Shandong University of Technology has solved the problem of analytical calculation of the deformation of the valve plate, and established an optimal design method for the thickness curve fitting of the shock absorber valve plate, which can obtain reliable The design value of the thickness of the valve plate, the characteristic test value of the shock absorber is close to the required value of the characteristic design, but because this design method needs to establish the optimization objective function of the valve plate thickness, and needs to optimize the design and calculation through programming, for the general shock absorber design difficult to master

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