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Design method of the outer circle radius of the rubber sleeve of the externally offset non-coaxial cab stabilizer bar

A non-coaxial, outer radius technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as failure to provide analytical design methods, inability to provide analytical design formulas, and complex analysis and calculation

Inactive Publication Date: 2018-05-11
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the external offset non-coaxial cab stabilizer bar system is a coupled body composed of rigid body, elastic body and flexible body, and the torsion tube has bending and torsional coupling, its analysis and calculation are very complicated, so , for the design of the outer circle radius of the outer offset non-coaxial cab stabilizer bar rubber sleeve, domestic and foreign countries have not been able to provide 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 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 the outer circle radius of the rubber sleeve of the externally offset non-coaxial cab stabilizer bar
  • Design method of the outer circle radius of the rubber sleeve of the externally offset non-coaxial cab stabilizer bar
  • Design method of the outer circle radius of the rubber sleeve of the externally offset non-coaxial cab stabilizer bar

Examples

Experimental program
Comparison scheme
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; 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 structure and material properties of the left and right four rubber bushes are exactly the same, as im...

Embodiment 2

[0107] 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 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 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, material elastic modulus E=200GPa, Poisson’s ratio μ=0.3; the structures of the left and right four rubber bushes are exactly the same, as image 3 Shown, wherein, the inner circle diameter d of the inner circle sleeve 5 x =35mm, w...

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Abstract

The invention relates to a design method for the outer circle radius of a rubber sleeve of an external offset non-coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. According to the structure and material characteristic parameters of the external offset non-coaxial cab stabilizer bar, the present invention can utilize the relationship between the roll angle stiffness of the stabilizer bar system and the equivalent line stiffness of the torsion tube and the equivalent combination line stiffness of the rubber bushing. relationship, establish the mathematical model of the design of the outer circle radius of the rubber sleeve, and use Matlab to solve the design. Through design examples and simulation verification, it can be seen that the method can obtain accurate and reliable design values ​​of the outer circle radius of the rubber sleeve. By using this method, the design level, quality and performance of the stabilizer bar system can be improved, and the ride comfort and safety of the vehicle can be improved only through the adjustment design of the outer circle radius of the rubber bush without increasing the product cost. It can 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 outer circle radius of a rubber sleeve of an external offset non-coaxial cab stabilizer bar. Background technique [0002] The rubber bushing is composed of an inner sleeve, a rubber sleeve and an outer sleeve, and the outer radius of the rubber sleeve has an important influence on the roll angle stiffness of the cab stabilizer bar system. In the actual cab stabilizer bar design, the roll angle stiffness of the cab stabilizer bar system can be adjusted only by adjusting the outer circle radius and thickness of the rubber sleeve while keeping other structural parameters of the stabilizer bar unchanged. It reaches and satisfies the design requirement value of vehicle roll angle stiffness. However, since the external offset non-coaxial cab stabilizer bar system is a coupled body composed of rigid body, elastic body and flexible body, and the torsion tube has bendi...

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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