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Design method of length of rubber bushing for inner offset non-coaxial cab stabilizer bar

A non-coaxial, design method technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as failure to provide reliable analytical design methods, inability to provide analytical design formulas, and inability to achieve analytical design.

Active Publication Date: 2018-08-14
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 analytical calculation of the deformation of the rubber bushing, the mutual coupling of the torsional deformation and the bending deformation of the torsion tube, and the increase in the load of the torsional rubber bushing, for the internal offset non-coaxial cab stabilizer bar rubber The adjustment design of the sleeve length 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 ANSYS simulation analysis can only simulate and verify the characteristics of the stabilizer bar with given parameters, it cannot provide an accurate analytical design formula, cannot realize the analytical design, and cannot meet the requirements of CAD software development for the cab stabilizer bar system

Method used

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  • Design method of length of rubber bushing for inner offset non-coaxial cab stabilizer bar
  • Design method of length of rubber bushing for inner offset non-coaxial cab stabilizer bar
  • Design method of length of rubber bushing for inner offset non-coaxial cab stabilizer bar

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Experimental program
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Effect test

Embodiment 1

[0063] Embodiment 1: The structure of a certain internally offset non-coaxial cab stabilizer bar system is left-right symmetrical, as shown in figure 2 As shown, it includes: a swing arm 1, a suspension rubber bush 2, a torsion rubber bush 3, and a torsion tube 4; wherein, the torsion tube 4 is not coaxial with the torsion rubber bush 3, and the internal offset of the torsion tube 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 Δl from the suspension position C of the swing arm to the outermost end A 1 =47.5mm; the length L of the twisted tube 4 w =1500mm, inner diameter d=35mm, outer diameter D=50mm, elastic modulus E=200GPa, Poisson’s ratio μ=0.3; the structure and material properties of the left and right four rubber bushes are exactly the sam...

Embodiment 2

[0111] Embodiment 2: The structural form of an internal offset non-coaxial cab stabilizer bar system is the same as that of Embodiment 1, as shown in figure 2 As shown, where the torsion tube 4 is not coaxial with the torsion rubber bushing 3, the internal offset of the torsion tube 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 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=42mm, outer diameter D=50mm; 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; inner circle radius r of rubber sleeve 6 a =22.5mm,...

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Abstract

The invention relates to a design method for the length of a rubber sleeve of an inner offset non-coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. According to the relationship between the required value of the roll angle stiffness of the stabilizer bar system, the equivalent line stiffness of the stabilizer bar, the load coefficient, the radial stiffness, the equivalent combination line stiffness, and the length of the rubber bushing, the present invention establishes The mathematical model for the length design of the inner offset non-coaxial stabilizer bar rubber sleeve is established, and Matlab is used to solve the design, and the accurate and reliable design value of the rubber sleeve length can be obtained, which provides a reliable design method for the cab stabilizer bar system. Using this method, the design level, quality and performance of the stabilizer bar system can be improved by only adjusting the length of the rubber bushing without increasing the product cost, and can meet the design requirements of the cab suspension on the roll angle stiffness of the stabilizer bar , improve the ride comfort and safety 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 length of a rubber sleeve of an inner offset non-coaxial cab stabilizer bar. Background technique [0002] The inner offset non-coaxial cab stabilizer bar system is composed of swing arm, torsion tube and rubber bushing, but it is a coupled body composed of rigid body, elastic body and flexible body. complex. Among them, the rubber bushing is composed of an inner sleeve, a rubber sleeve and an outer sleeve, and the length of the rubber sleeve has an important influence on the roll angle stiffness of the cab stabilizer bar system. In the actual design of the cab, when the structure of the stabilizer bar is determined, the design or adjustment of the length of the rubber sleeve is often used to make the stabilizer bar system of the cab meet the design requirements of the roll angle stiffness. However, due to the constraints of the analytical calculation of the d...

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
Owner SHANDONG UNIV OF TECH
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