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Design Method of Swing Arm Length of Outer Offset Non-coaxial Cab Stabilizer Bar

A non-coaxial, design method technology, applied in the direction of calculation, special data processing applications, instruments, etc., can solve the problems that cannot meet the requirements of the cab stabilizer bar system development, cannot provide analytical design formula, cannot realize analytical design, etc.

Active Publication Date: 2017-04-19
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the external offset non-coaxial cab stabilizer bar system, although it is only composed of swing arm, torsion tube and rubber bushing, it is a coupling body composed of rigid body, elastic body and flexible body. There is still torsion and bending coupling in the external offset of the torsion tube. At the same time, because the calculation of the stiffness of the rubber bush is very complicated, the design of the swing arm length of the external offset non-coaxial cab stabilizer bar has not been given. Robust Analytical Design Methodology
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 verify the stabilizer bar with given parameters, it cannot provide accurate analytical design formulas, cannot realize 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 Swing Arm Length of Outer Offset Non-coaxial Cab Stabilizer Bar
  • Design Method of Swing Arm Length of Outer Offset Non-coaxial Cab Stabilizer Bar
  • Design Method of Swing Arm Length of Outer Offset Non-coaxial Cab Stabilizer Bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] 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 , is the parameter to be designed; the distance Δl from the suspension installation 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 structures and material properties of the four rubber bushes 2 and 3 on t...

Embodiment 2

[0106] Embodiment 2: The structure 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 l between the suspension rubber bushing 2 and the torsion rubber bushing 3 1 , that is, the length of the swing arm, is the parameter to be designed; the distance Δl from the suspension installation 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; length L of...

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Abstract

The invention relates to a design method for the length of a swing arm of an external offset non-coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. According to the structure and parameters of the stabilizer bar system, the present invention can use the relationship between the roll angle stiffness design requirement value and the swing arm length of the stabilizer bar, the equivalent combination line stiffness of the rubber bushing, and the equivalent line stiffness of the torsion tube, Establish the design mathematical model of the swing arm length, and use the Matlab program to solve the design. Through the design example and simulation verification, it can be seen that the method can obtain accurate and reliable swing arm length design value, provides a reliable design method for the design of cab suspension and stabilizer bar system, and lays a reliable technical foundation for CAD software development . Using this method can not only improve the design level and quality of the cab suspension and stabilizer bar system, improve the ride comfort and safety of the vehicle, but 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 the length of the swing arm of an external offset non-coaxial cab stabilizer bar. Background technique [0002] The length of the swing arm of the cab stabilizer bar system not only affects the bending deformation of the torsion tube, the load and deformation of the torsion rubber bushing, but also has an important influence on the roll stiffness of the stabilizer bar system. For the external offset non-coaxial cab stabilizer bar system, although it is only composed of swing arm, torsion tube and rubber bushing, it is a coupling body composed of rigid body, elastic body and flexible body. There is still torsion and bending coupling in the external offset of the torsion tube. At the same time, because the calculation of the stiffness of the rubber bush is very complicated, the design of the swing arm length of the external offset non-coaxial cab stabilizer bar has no...

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