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Suspension stabilizer bar rubber bushing length design method

A technology of rubber bushing and design method, which is applied in the direction of suspension, calculation, special data processing application, etc., and can solve the problems that cannot satisfy the analytical design of the stabilizer bar system, cannot be given, and has no analytical calculation formula, etc.

Inactive Publication Date: 2014-12-10
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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  • Suspension stabilizer bar rubber bushing length design method
  • Suspension stabilizer bar rubber bushing length design method
  • Suspension stabilizer bar rubber bushing length design method

Examples

Experimental program
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Effect test

Embodiment 1

[0042] 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 roll...

Embodiment 2

[0072] 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 Example 1, where, 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.

[0073] 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 front suspension of the vehicle, the structural parameters of the stabilizer bar and the inner cir...

Embodiment 3

[0075] 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.

[0076] Adopt the design step of embodiment one, the length L of this vehicle front suspension stabilizer bar rubber bushing is designed:

[007...

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Abstract

The invention relates to a suspension stabilizer bar rubber bushing length design method and belongs to the technical field of vehicle suspensions. A reliable analytical design method for rubber bushing length is unavailable previously at home and abroad. The method is characterized by including establishing an optimization design mathematical model of suspension stabilizer bar rubber bushing length according to wheel tread of a vehicle, a roll angle rigidity design required value of a stabilizer bar system, end deformation coefficient Gw of a stabilizer bar and a radial rigidity expression Kx of rubber bushings, and utilizing a Matlab program to obtain an optimization design value of the rubber bushing length. By the aid of the method, the accurate and reliable rubber bushing length optimization design value can be obtained, and the stabilizer bar system can meet design requirements of roll angle rigidity by optimization design of the rubber bushing length on the premise that design and production costs are not increased; meanwhile, by the method, design and test cost can be lowered, vehicle suspension design level is improved, and vehicle driving smoothness and manipulation safety are improved.

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 Applications(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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