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Design method of rubber bushing pin diameter of coaxial cab stabilizer bar

A rubber bushing and design method technology, applied in calculation, special data processing applications, instruments, etc., can solve the design requirements that are difficult to meet the roll angle stiffness of the cab stabilizer bar system, cannot provide analytical calculation formulas, and cannot meet the requirements of development Requirements and other issues to achieve the effect of speeding up product development, improving ride comfort and ride comfort, and reducing design and test costs

Inactive Publication Date: 2018-08-21
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the constraints of key issues such as rubber bush deformation and stiffness coupling, no reliable analysis has been given for the design of the rubber bush pin diameter and rubber bush structural parameters of the coaxial cab stabilizer bar system. Most of the design methods are just to select a conversion factor in the range of 0.75 to 0.85 for the effect of the rubber bush on the stiffness of the stabilizer bar system, and to approximate the other structural parameters of the stabilizer bar system. Therefore, it is difficult to achieve the stability of the cab stabilizer bar. Design Requirements for System Roll Angle Stiffness
At present, for the coaxial cab stabilizer bar system at home and abroad, most of them use ANSYS simulation software to simulate and verify the characteristic parameters of the coaxial stabilizer bar system with a given structure through solid modeling, although relatively reliable However, since this method cannot provide accurate analytical calculation formulas, it cannot meet the requirements of analytical design, let alone the development of CAD software for the coaxial cab stabilizer bar system.

Method used

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  • Design method of rubber bushing pin diameter of coaxial cab stabilizer bar
  • Design method of rubber bushing pin diameter of coaxial cab stabilizer bar
  • Design method of rubber bushing pin diameter of coaxial cab stabilizer bar

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Embodiment 1: The structure of a coaxial cab stabilizer bar system is left-right symmetrical, such as figure 2 As shown, it includes: swing arm 1, suspension rubber bushing 2, torsion rubber bushing 3, torsion tube 4; wherein, torsion tube 4 and torsion rubber bushing 3 are coaxial; the distance between the left and right swing arms 1 L c =1550mm, that is, the suspension distance of the stabilizer bar; the distance l between the suspension rubber bushing 2 and the torsion rubber bushing 3 1 =380mm, that is, the length of the swing arm; the distance from the suspension position C of the swing arm to the outermost end A is Δl 1 =47.5mm; the length L of the twisted tube 4 w =1500mm, inner diameter d=35mm, outer diameter D=50mm; material elastic modulus E=200GPa of torsion tube, Poisson’s ratio μ=0.3; the structure and material properties of the left and right four rubber bushes are exactly the same, as image 3 As shown, it includes: an inner sleeve 5, a rubber sleeve ...

Embodiment 2

[0099] Embodiment 2: The structure of a coaxial cab stabilizer bar system is left-right symmetrical, such as figure 2 Shown, where, the distance L between the left and right swing arms 1 c =1400mm, that is, the suspension distance of the stabilizer bar; the distance l between the suspension rubber bushing 2 and the torsion rubber bushing 3 1 =350mm, that is, the length of the swing arm; the distance Δl from the suspension position C of the swing arm to the outermost end A 1 =52.5mm; the length L of the torsion tube 4 w =1000mm, inner diameter d=40mm, outer diameter D=50mm; the structure and material properties of the left and right four rubber bushes are exactly the same, as image 3 As shown, wherein, the wall thickness of the inner cylindrical sleeve 5 = 4m, the inner diameter d x Be the diameter of the pin shaft of the rubber bushing to be designed; the material properties of the stabilizer bar and the material properties of the rubber bushing are the same as in Embodim...

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Abstract

The invention relates to a design method for the diameter of a pin shaft of a rubber bushing of a coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. According to the design requirement value of the roll angle stiffness, the structure of the stabilizer bar, the length Lx of the rubber sleeve and the material characteristic parameters, the present invention can analyze and design the pin shaft diameter dx of the rubber bushing of the coaxial cab stabilizer bar. Through the example calculation and simulation verification, it can be seen that the accurate and reliable design value dx of the rubber bushing pin diameter of the coaxial cab stabilizer bar can be obtained by using this method, which lays a reliable technical foundation for the design of the cab stabilizer bar system and the development of CAD software . Using this method can not only improve the design level of the coaxial cab stabilizer bar system, but also achieve the design of the roll angle stiffness of the stabilizer bar system only through the adjustment design of the rubber bush pin diameter dx Requirements, improve the ride comfort and ride comfort of the vehicle; at the same time, it can also reduce the design and test costs.

Description

technical field [0001] The invention relates to a vehicle cab suspension, in particular to a design method for the pin diameter of a coaxial cab stabilizer bar rubber bushing pin. Background technique [0002] The design of the pin diameter of the rubber bushing of the stabilizer bar has an influence on the inner and outer circle radii and thickness of the rubber bushing, therefore, it has an important influence on the roll angle stiffness of the stabilizer bar system. In the design of the actual cab suspension system, in order to meet the design requirements of the roll angle stiffness, it is necessary to adjust the design of the pin diameter of the rubber bushing and the structural parameters of the rubber bushing without changing other structural parameters. Meet the design requirements for the roll angle stiffness of the cab stabilizer bar system. However, due to the constraints of key issues such as rubber bush deformation and stiffness coupling, no reliable analysis h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 周长城宋群程正午曹海琳高炳凯毛少坊
Owner SHANDONG UNIV OF TECH
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