Method for checking rolling angle stiffness of cab stabilizer bar system

A technology of stabilizer bar system and roll angle stiffness, which is applied in special data processing applications, instruments, electrical and digital data processing, etc. The effect of product development speed, improving design level and quality, and reducing design and test costs

Inactive Publication Date: 2017-12-22
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the constraints of the analytical calculation of the deformation of the rubber bush and the coupling with the stiffness of the stabilizer bar system, a reliable analytical calculation has not been given for the check calculation of the roll angle stiffness of the coaxial cab stabilizer bar system. method, only the influence of the rubber bushing on the stiffness of the stabilizer bar system can be used to approximate the stiffness of the stabilizer bar system with a conversion factor
At present, at home and abroad, most of the calibration of the roll angle stiffness of the coaxial cab stabilizer bar system is to use the ANSYS simulation software to conduct simulation analysis and verification of the roll angle stiffness through solid modeling. Although this method can obtain relatively reliable simulation values , however, due to the inability to provide accurate analytical calculation formulas, it cannot meet the requirements of CAD software development for the coaxial cab stabilizer bar system

Method used

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  • Method for checking rolling angle stiffness of cab stabilizer bar system
  • Method for checking rolling angle stiffness of cab stabilizer bar system
  • Method for checking rolling angle stiffness of cab stabilizer bar system

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Embodiment 1

[0044]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, that is half the length l of the torsion tube 2 = L w / 2=750mm; the inner diameter of the torsion tube d=35mm, the outer diameter D=50mm; the elastic modulus of the torsion tube material E=200GPa, Poisson’s ratio μ=0.3; the structure and material properties of the four rubber bushes on the ...

Embodiment 2

[0085] 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 total length L of the torsion tube 4 w =1000mm, that is, half the length l of the torsion tube 2 = L w / 2=500mm, inner diameter d=42mm, 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 6 x =40mm, inner circle radius r a =22.5mm, outer circle radius r b=37.5mm; The material properties of t...

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Abstract

The present invention provides a method for checking rolling angle stiffness of a cab stabilizer bar system, and belongs to the technical field of cab stabilizer bars. The method comprises the following steps: (1) calculating a deformation coefficient Gw of a cab stabilizer bar at a suspension position; (2) analyzing and calculating radial stiffness Kx of a rubber bush of the cab stabilizer bar; (3) calculating equivalent line stiffness Kws of a coaxial cab stabilizer bar system; (4) calculating rolling angle stiffness, as shown in the specification, of the coaxial cab stabilizer bar system; and (5) checking stiffness of the coaxial cab stabilizer bar system and performing ANSYS simulation verification. According to the method, the calculated value of the rolling angle stiffness of the coaxial stabilizer bar system can be obtained accurately and reliably, so that not only can the design level of the cab suspension and stabilizer bar system be improved, and smoothness and safety of vehicle driving can be increased; but also design and testing costs can be reduced, and reliable technical supports can be provided for development of CAD software of the cab stabilizer bar system.

Description

technical field [0001] The invention relates to a vehicle cab suspension, in particular to a verification method for the roll angle stiffness of a cab stabilizer bar system. Background technique [0002] The design of the suspension and stabilizer bar system of the full-floating cab must meet the design requirements for the stiffness of the roll angle when the vehicle is turning. Among them, the stiffness of the roll angle is not only related to the stiffness of the suspension spring, but also related to the stiffness of the stabilizer bar system. The stabilizer bar system mainly includes swing arms, rubber bushings and torsion tubes. However, due to the constraints of the analytical calculation of the deformation of the rubber bush and the coupling with the stiffness of the stabilizer bar system, a reliable analytical calculation has not been given for the check calculation of the roll angle stiffness of the coaxial cab stabilizer bar system. method, only the effect of the...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15
Inventor 李栋李胜曹旭光胡金蕊黄德惠张凯向建东
Owner CHINA FIRST AUTOMOBILE
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