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Design Method of Outer Circle Radius of Coaxial Cab Stabilizer Rod Rubber Bushing

A design method and technology of outer circle radius, applied in the direction of calculation, special data processing applications, instruments, etc., can solve the problem that it is difficult to achieve the design requirements of the roll angle stiffness of the coaxial cab stabilizer bar system, and can not meet the development requirements. , can not provide analytical calculation formula and other problems, to achieve the effect of speeding up product development, reducing design and test costs, and improving ride comfort and ride comfort

Inactive Publication Date: 2018-05-29
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, for the coaxial cab stabilizer bar system, the rubber bush outer circle radius r b However, a reliable analytical design method has not been given, and only a conversion factor selected in the range of 0.75 to 0.85 for the influence of the rubber bushing on the stiffness of the stabilizer bar system can be used for other structural parameters of the coaxial stabilizer bar. Approximate design, therefore, it is difficult to achieve the design requirement value of the roll angle stiffness of the coaxial cab stabilizer bar system
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 characteristics of the coaxial stabilizer bar system with a given structure through solid modeling, although relatively reliable simulation values ​​can be obtained 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 Outer Circle Radius of Coaxial Cab Stabilizer Rod Rubber Bushing
  • Design Method of Outer Circle Radius of Coaxial Cab Stabilizer Rod Rubber Bushing
  • Design Method of Outer Circle Radius of Coaxial Cab Stabilizer Rod Rubber Bushing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 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

[0097] Embodiment 2: The structure of a coaxial cab stabilizer bar system is left-right symmetrical, such as figure 2 As shown, the distance L between the two swing arms 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 from the suspension position C of the swing arm to the outermost end A is Δl 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 Shown, wherein, the inner diameter d of the inner cylindrical sleeve 5 x =35mm, wall thickness δ=5mm; length L of rubber sleeve x =40mm, inner circle radius r a = 22.5 mm. The material properties of the stabilizer bar and the material properties of the rubber bushing are the same as those of Embodiment 1...

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Abstract

The invention relates to a design method for the outer radius of a rubber sleeve of a coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. The present invention can be based on the design requirements of the cab suspension on the roll angle stiffness of the stabilizer bar system, the structure and material characteristic parameters of the coaxial stabilizer bar, and the inner circle radius ra, length Lx and material characteristic parameters of the rubber sleeve. The outer circle radius rb of the set is analyzed and designed. Through the example calculation and ANSYS simulation verification, it can be seen that the accurate and reliable design value of the outer circle radius rb of the coaxial cab stabilizer bar rubber sleeve can be obtained by using this method, which can not only improve the design of the coaxial cab suspension and stabilizer bar system level and quality, and without increasing the cost, only through the adjustment design of the outer circle radius rb of the rubber sleeve, the design requirements of the roll angle stiffness of the stabilizer bar system can be achieved, and the driving comfort and ride comfort of the vehicle can be improved; at the same time, Design and test costs can also be reduced.

Description

technical field [0001] The invention relates to a vehicle cab suspension, in particular to a design method for the outer circle radius of a coaxial cab stabilizing rod rubber sleeve. Background technique [0002] The structural size of the rubber bushing affects the roll angle stiffness of the cab suspension system, and affects the ride comfort and ride comfort of the vehicle. Among them, the outer circle radius r of the rubber bushing b It has a significant 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 rubber bushing structure to meet the design requirements of the cab roll angle stiffness while other structures remain unchanged. However, due to the constraints of key issues such as rubber bush deformation and stiffness coupling, for the coaxial cab stabilizer bar system, the rubber bush o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 周长城于曰伟李胜
Owner SHANDONG UNIV OF TECH
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