The design method of the wall thickness of the inner circular sleeve of the rubber bushing of the inner offset cab stabilizer bar

A rubber bushing and stabilizer bar technology, applied in calculation, instrumentation, electrical digital data processing, etc., can solve problems such as failure to give analytical design methods, inability to realize analytical design, complex analysis and calculation, etc.

Active Publication Date: 2018-09-18
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the internally biased cab stabilizer bar system is a coupled body composed of rigid body, elastic body and flexible body, and due to the internal bias of the torsion tube, the stabilizer bar system has bending and torsional coupling, so its analysis The calculation is very complicated. Therefore, for the design of the wall thickness of the inner circular sleeve of the rubber bushing of the inner offset cab stabilizer bar, no reliable analytical design method has been given at home and abroad.
At present, for the cab stabilizer bar system at home and abroad, most of them 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 , because the ANSYS simulation analysis can only simulate and verify the characteristics of the stabilizer bar with given parameters, and cannot provide an accurate analytical design formula, it cannot realize the analytical design, let alone meet the requirements of CAD software development for the cab stabilizer bar system

Method used

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  • The design method of the wall thickness of the inner circular sleeve of the rubber bushing of the inner offset cab stabilizer bar
  • The design method of the wall thickness of the inner circular sleeve of the rubber bushing of the inner offset cab stabilizer bar
  • The design method of the wall thickness of the inner circular sleeve of the rubber bushing of the inner offset cab stabilizer bar

Examples

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Embodiment 1

[0063] Embodiment 1: The structure of a certain inner offset cab stabilizer bar system is symmetrical, such as 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 internal offset T of the torsion tube 4 =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 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 image 3 As shown, it includes...

Embodiment 2

[0111] Embodiment 2: The structural form of a certain internally biased 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 internal 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 bush 2 and the torsion rubber bush 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, modulus of elasticity 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; Among them, the inner circle diameter d of the inner circle sleeve 5 x =35mm, the wall thickness δ is the p...

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Abstract

The invention relates to a design method for the wall thickness of an inner circular sleeve of a rubber bush of an inner offset cab stabilizer bar, and belongs to the technical field of cab suspension. According to the structural parameters and material characteristic parameters of the internally biased cab stabilizer bar system, the present invention can utilize the roll angle stiffness and the equivalent line stiffness of the stabilizer bar, the radial stiffness of the rubber bushing, the equivalent combined line stiffness and the inner circle The relationship between the wall thickness of the sleeve, establish the design mathematical model of the wall thickness of the inner circle sleeve, and use Matlab to solve the design. Through the example design and ANSYS simulation verification, it can be seen that the method can obtain accurate and reliable design value of the wall thickness of the inner circular sleeve of the rubber bushing of the internal offset cab stabilizer bar, and provides a reliable design method for the stabilizer bar system. Using this method can improve the design level and performance of the stabilizer bar system without increasing the cost, and improve the ride comfort and safety 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 suspension of a vehicle cab, in particular to a method for designing the wall thickness of an inner circular sleeve of a rubber bush of an inner offset cab stabilizing bar. Background technique [0002] The rubber bushing consists of an inner sleeve, a rubber sleeve and an outer sleeve. When the outer radius of the rubber sleeve is given, the inner radius and thickness of the rubber sleeve are related to the wall thickness of the inner sleeve. In the actual design of the cab stabilizer bar system, under the condition that the structure of the stabilizer bar remains unchanged, the adjustment design of the inner circle radius and thickness of the rubber sleeve can be achieved only through the adjustment design of the inner circle sleeve wall thickness, so as to realize the The adjustment design of the roll angle stiffness of the stabilizer bar system of the cab can meet the design requirements of the roll stiffness of the cab....

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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