The Design Method of the Inner Circle Radius of the Rubber Bushing of the Coaxial Cab Stabilizer Rod

A cab and stabilizer bar technology is applied in the design field of the inner radius of the rubber sleeve of the coaxial cab stabilizer bar, which can solve the problem that it is difficult to obtain the design value that satisfies the roll angle stiffness of the coaxial cab stabilizer bar system, and the inability to 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: 2018-03-02
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 inner circle radius r a 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 effect of the rubber bush on the stiffness of the stabilizer bar system can be used for other structures of the coaxial stabilizer bar system. Therefore, it is difficult to obtain the design value that satisfies 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 characteristic simulation 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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  • The Design Method of the Inner Circle Radius of the Rubber Bushing of the Coaxial Cab Stabilizer Rod
  • The Design Method of the Inner Circle Radius of the Rubber Bushing of the Coaxial Cab Stabilizer Rod
  • The Design Method of the Inner Circle Radius of the Rubber Bushing of the Coaxial Cab Stabilizer Rod

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Experimental program
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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

[0098] 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 two 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, such 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 6 x =40mm, outer circle radius r b = 37.5 mm. The material properties of the stabilizer bar and the material properties of the rubber bushing are identical to that of e...

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Abstract

The invention relates to a design method for the inner radius of a rubber sleeve of a coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. The present invention can analyze and design the inner circle radius ra of the rubber sleeve according to the design requirements of the cab's roll angle stiffness, the structure and material characteristic parameters of the coaxial stabilizer bar, and the structure and material characteristic parameters of the rubber bushing. Through example calculation and ANSYS simulation verification, it can be seen that the design value of the inner circle radius ra of the rubber sleeve can be obtained accurately and reliably by using this method, which has established a reliable technical foundation for the development of CAD software for the coaxial cab mount and stabilizer bar system. Using this method can not only improve the design level of the coaxial cab stabilizer bar system, but also can meet the design requirements of the roll angle stiffness without increasing the cost, only by adjusting the design of the inner circle radius ra of the rubber sleeve , 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 inner 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 inner circle radius r of the rubber bushing a 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 meet the roll angle stiffness of the cab stabilizer bar only by adjusting the structural parameters of the rubber bushing when other structures remain unchanged. Design requirements. However, due to the constraints of key issues such as rubber bush deformation and stiffness coupling, for the coaxial cab stabilizer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 周长城提艳潘礼军高春蕾孟婕毛少坊
Owner SHANDONG UNIV OF TECH
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