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Design Method of Rubber Bushing Length of Suspension Stabilizer Bar

A technology of rubber bushing and design method, applied in suspension, calculation, special data processing applications, etc., can solve problems such as non-analytical calculation formula, failure to give, and inability to meet the analytical design of stabilizer bar system

Inactive Publication Date: 2018-04-10
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 key issues such as the radial deformation of the rubber bushing and the vertical displacement deformation at the end of the stabilizer bar and the mutual coupling effects, the design of the diameter of the stabilizer bar and the length of the rubber bushing has not been done at home and abroad. Can give a reliable analytical design method
At present, domestic and foreign scholars mostly use simulation analysis software to conduct numerical simulation analysis on the deformation and stiffness of the stabilizer bar system. Simulation verification, without analytical calculation formula, can not meet the requirements of analytical design of stabilizer bar system and modern CAD design

Method used

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  • Design Method of Rubber Bushing Length of Suspension Stabilizer Bar
  • Design Method of Rubber Bushing Length of Suspension Stabilizer Bar
  • Design Method of Rubber Bushing Length of Suspension Stabilizer Bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment one: the wheelbase B=1600mm of certain vehicle front axle, the structure of adopted stabilizer bar, as figure 2 As shown, among them, l c is the total length of the stabilizer bar, l c =800mm; l 1 is the arm length, l 1 =150mm; l 0 is the installation distance between rubber bushings, l 0 =400mm; R is the radius of the transition arc, R=50mm; θ is the central angle of the transition arc, θ=60°; the modulus of elasticity of the stabilizer bar material E=210GPa, Poisson's ratio μ=0.3. The structure of the rubber bushing is as follows image 3 As shown, among them, the stabilizer bar 1, the inner circle sleeve 2, the rubber bush 3, the outer circle sleeve 4, the diameter d of the stabilizer bar 1 = 20mm, the inner circle radius r of the rubber bush 3 a =13mm, outer circle radius r b =30mm, elastic modulus E x =7.84MPa, Poisson's ratio μ x =0.47, the length L of the rubber bushing is the parameter to be designed. The design requirement value of the rol...

Embodiment 2

[0071] Embodiment 2: The structural parameters of the front suspension of a certain vehicle, the structural parameters of the stabilizer bar, the inner circle radius of the rubber bushing, the outer circle radius and the material characteristic parameters are all identical to those of the first embodiment, except that the front suspension of the vehicle is stable. Roll Angular Stiffness of Rod System The design requirement value of is different from that of Embodiment 1, wherein, Under the condition that other structural parameters remain unchanged, the length L of the rubber bushing is optimally designed to meet the design requirements of the roll angle stiffness of the stabilizer bar system.

[0072] Using the design steps of Embodiment 1, the length L of the rubber bushing of the front suspension stabilizer bar of the vehicle is designed. Because the structural parameters of the vehicle's front suspension, the structural parameters of the stabilizer bar, and the inner ci...

Embodiment 3

[0074] Embodiment three: the wheelbase B=1600mm of the front axle of a certain vehicle, except the diameter d=21mm of the adopted stabilizer bar, other structural parameters, installation structural parameters and material characteristic parameters are all identical to those of embodiment one; rubber lining The inner circle radius r of the set a =13.5mm, outer circle radius r b =30mm; Elastic modulus E of the rubber bushing x =7.84MPa, Poisson's ratio μ x =0.47; the length L is the quantity to be designed. The design requirement value of the roll angle stiffness of the front suspension stabilizer bar system of the vehicle The length L of the rubber bushing is designed under the conditions of the structure of the stabilizer bar, the inner circle radius, the outer circle radius and the installation position of the rubber bushing.

[0075] Using the design steps of Embodiment 1, the length L of the rubber bushing of the front suspension stabilizer bar of the vehicle is desig...

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Abstract

The invention relates to a design method for the length of a rubber bush of a suspension stabilizer bar, and belongs to the technical field of vehicle suspension. Reliable analytical design methods for the length of rubber bushings have not been given at home and abroad before. The present invention is characterized in that: according to the wheelbase of the vehicle, the required value of the roll angle stiffness design of the stabilizer bar system, the deformation coefficient Gw of the end of the stabilizer bar, and the radial stiffness expression Kx of the rubber bushing, a rubber bushing for the suspension stabilizer bar is established. The mathematical model of the optimal design of the sleeve length can be obtained by using the Matlab program to obtain the optimal design value of the rubber bushing length. Using this method, an accurate and reliable optimal design value of the length of the rubber bush can be obtained, that is, the stabilizer bar system can achieve the roll angle stiffness only through the optimal design of the length of the rubber bush without increasing the design and production costs. At the same time, using this method can reduce design and test costs, improve vehicle suspension design level, and improve vehicle ride comfort and handling safety.

Description

technical field [0001] The invention relates to a vehicle suspension stabilizer bar, in particular to a design method for the length of a rubber bush of the suspension stabilizer bar. Background technique [0002] The stabilizer bar is one of the important components of the vehicle suspension system, which prevents the body from excessive roll and roll angle vibration when the vehicle is turning. Adding a stabilizer bar to the vehicle suspension system can reduce this lateral roll. If the distribution of the roll angle stiffness of the front and rear suspensions of the vehicle is improperly designed, it will affect the steering characteristics of the vehicle. Generally, the roll angle stiffness of the front suspension system Greater than the roll angle stiffness of the rear suspension system. The roll angle stiffness of the suspension system is not only affected by the structure and diameter of the stabilizer bar, but also by the length of the rubber bush, inner circle radi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50B60G21/055
Inventor 周长城提艳张云山宋群潘礼军程正午
Owner SHANDONG UNIV OF TECH
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