Design Method of Torsion Tube Wall Thickness in Coaxial Cab Stabilizer Bar System

A technology of a stabilizer bar system and design method, applied in the directions of calculation, special data processing applications, instruments, etc., can solve problems such as difficulty in obtaining a cab stabilizer bar system, inability to provide analytical calculation formulas, and inability to meet development requirements, etc. Product development speed, improved ride comfort and ride comfort, and reduced design and testing costs

Inactive Publication Date: 2018-03-16
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the constraints of key issues such as rubber bushing deformation and stiffness coupling, a reliable analytical design method has not been given for the wall thickness design of the torsion tube of the coaxial cab stabilizer bar system, and only the rubber bushing For the influence on the stiffness of the stabilizer bar system, a conversion factor in the range of 0.75 to 0.85 is used to approximate the wall thickness of the torsion tube of the coaxial stabilizer bar system. Therefore, it is difficult to obtain an accurate and reliable torsion tube of the cab stabilizer bar system Design value of wall thickness
At present, for the stabilizer bar system of the cab 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 this method can obtain relatively reliable simulation values, 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 Torsion Tube Wall Thickness in Coaxial Cab Stabilizer Bar System
  • Design Method of Torsion Tube Wall Thickness in Coaxial Cab Stabilizer Bar System
  • Design Method of Torsion Tube Wall Thickness in Coaxial Cab Stabilizer Bar System

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Embodiment 1

[0039] 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; elastic modulus of torsion tube material E=200GPa, 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 6, and an outer sleeve ...

Embodiment 2

[0076] 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 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, the structure and material properties of the four rubber bushes on the left and right 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, inner circle radius r a =22.5mm, outer circle radius r b = 37.5 mm. The material properties of the stabilizer bar and the material properties of the rubber bushing ar...

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Abstract

The invention relates to a design method for the wall thickness of a torsion tube of a coaxial cab stabilizer bar system, and belongs to the technical field of cab suspension. The present invention can carry out the torsion tube wall thickness of the coaxial stabilizer bar system according to the cab's design requirements for the roll angle stiffness of the stabilizer bar system, the structure and material characteristic parameters of the stabilizer bar system, and the structure and material characteristic parameters of the rubber bushing. Analyze the design. Through example calculation and simulation verification, it can be known that this method can obtain accurate and reliable design value of the torsion tube wall thickness of the coaxial cab stabilizer bar, which provides a reliable design method for the design of the cab suspension and stabilizer bar system, and is a good tool for CAD. Software development lays a solid technical foundation. Using this method can not only improve the design level and quality of the coaxial cab suspension and stabilizer bar system, improve the ride comfort and riding comfort of the vehicle; at the same time, it can also reduce design and test costs and speed up product development.

Description

technical field [0001] The invention relates to a vehicle cab suspension, in particular to a design method for a torsion tube wall thickness of a coaxial cab stabilizer bar system. Background technique [0002] The roll angle stiffness of the cab suspension system is not only related to the structure and spring stiffness of the cab suspension, but also to the stiffness of the stabilizer bar system, that is, to the length and wall thickness of the torsion tube of the cab stabilizer bar system. Among them, the wall thickness of the torsion tube has an important influence on the stiffness of the stabilizer bar system. However, due to the constraints of key issues such as rubber bushing deformation and stiffness coupling, a reliable analytical design method has not been given for the wall thickness design of the torsion tube of the coaxial cab stabilizer bar system, and only the rubber bushing For the influence on the stiffness of the stabilizer bar system, a conversion factor ...

Claims

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Application Information

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