Design method of torsion tube length for external offset non-coaxial cab stabilizer bar

A non-coaxial, design method technology, applied in computing, special data processing applications, instruments, etc., can solve problems that cannot satisfy analytical design, fail to give, cannot provide analytical design formula, etc.

Inactive Publication Date: 2018-04-06
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 the calculation of the stiffness of the rubber bushing, the bending and torsion of the external offset torsion tube, and the mutual coupling of loads, the design of the length of the torsion tube for the external offset non-coaxial cab stabilizer bar system, Has not been able to give a reliable analytical design method
At present, most of the design of cab stabilizer bar system at home and abroad is to use ANSYS simulation software to simulate and verify the characteristics of the cab stabilizer bar system with a given structure through solid modeling, although this method can obtain relatively reliable simulation values. However, since the ANSYS simulation analysis can only verify the stabilizer bar with given parameters, it cannot provide an accurate analytical design formula, and cannot meet the requirements of analytical design and CAD software development of the cab stabilizer bar system

Method used

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  • Design method of torsion tube length for external offset non-coaxial cab stabilizer bar
  • Design method of torsion tube length for external offset non-coaxial cab stabilizer bar
  • Design method of torsion tube length for external offset non-coaxial cab stabilizer bar

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Example 1: The structure of an externally offset non-coaxial cab stabilizer bar system is symmetrical, as shown in figure 2 As shown, it includes: swing arm 1, suspension rubber bushing 2, torsion rubber bushing 3, torsion tube 4; wherein, the torsion tube 4 is not coaxial with the torsion rubber bushing 3, and the external offset of the torsion tube 4 is T =30mm; the distance L between the left and right swing arms 1 c =1550mm, that is, the suspension distance of the stabilizer bar; the distance between the suspension rubber bushing 2 and the torsion rubber bushing 3, that is, the length of the swing arm l 1 =380mm, the distance from the installation position C of the swing arm suspension to the outermost end A Δl 1 =47.5mm; inner diameter d=35mm of torsion tube 4, outer diameter D=50mm, elastic modulus E=200GPa, Poisson’s ratio μ=0.3, length L w is the parameter to be designed; the structure and material properties of the left and right four rubber bushes 2 and 3 a...

Embodiment 2

[0108] Embodiment 2: The structural form of an externally biased non-coaxial cab stabilizer bar system is the same as that of Embodiment 1, such as figure 2 As shown, where the torsion tube 4 is not coaxial with the torsion rubber bushing 3, the external offset of the torsion tube 4 is T=30mm; the distance L between the left and right swing arms 1 c =1400mm, that is, the suspension distance of the stabilizer bar; the distance between the suspension rubber bushing 2 and the torsion rubber bushing 3, that is, the length of the swing arm l 1 =350mm; distance Δl from the suspension installation position C of the swing arm to the outermost end A 1 =52.5mm; inner diameter d=40mm of torsion tube 4, outer diameter D=50mm, length L w is the parameter to be designed; the structures of the left and right four rubber bushes are exactly the same, such as image 3 Shown, wherein, the inner circle diameter d of the inner circle sleeve 5 x =35mm, wall thickness δ=5mm; length L of rubber s...

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Abstract

The invention relates to a design method for the length of a torsion tube of an external offset non-coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. The present invention takes the length of the torsion tube as a parameter, uses the load coefficient expression of the torsion rubber bushing, the equivalent combination line stiffness expression of the rubber bushing, and the equivalent line stiffness expression of the torsion tube to establish the torsion tube of the stabilizer bar Design the mathematical model of the length, and solve the design through the Matlab program. Through the design example and ANSYS simulation verification, it can be seen that the method can obtain accurate and reliable design value of the torsion tube length, which provides a reliable technical basis for the design of the stabilizer bar system and the development of CAD software. Using this method, the design level and quality of the stabilizer bar system can be improved only by adjusting the length of the torsion tube without increasing the product cost, and the design requirements of the roll angle stiffness of the stabilizer bar system can be met, and the ride comfort and performance of the vehicle can be improved. Safety; 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 length of a torsion tube of an externally offset non-coaxial cab stabilizer bar. Background technique [0002] The length of the torsion tube of the stabilizer bar system not only affects the torsional deformation and bending deformation of the torsion tube, the load and deformation of the torsional rubber bushing, but also has an important influence on the stiffness characteristics of the cab stabilizer bar system. In the actual design of the stabilizer bar system, the design requirements of the roll angle stiffness of the cab stabilizer bar system are often achieved only by designing the length of the torsion tube while keeping other structural parameters unchanged. However, due to the constraints of the calculation of the stiffness of the rubber bushing, the bending and torsion of the external offset torsion tube, and the mutual coupling of loads, the design ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 周长城周超
Owner SHANDONG UNIV OF TECH
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