Design method for air spring rubber air chamber for automobile
A technology of air springs and rubber airbags, applied in elastic suspensions, vehicle parts, suspensions, etc., can solve problems such as inability to apply air springs
Inactive Publication Date: 2009-02-18
JIANGSU UNIV
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Problems solved by technology
Therefore, the design methods and processes of traditional vehicle leaf springs cannot be applied to air springs. Research and development of a vehicle air spring design system will have very important social and economic benefits
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[0015] see figure 1 , the system of the present invention includes:
[0016] A vehicle design technical requirements module 1.
[0017] A matching design module for an air suspension system 2 . According to the overall design requirements of the vehicle, that is, ride comfort, handling stability, ride comfort and other requirements, the air suspension system scheme of the vehicle is initially determined. The scheme mainly includes air springs, damping shock absorbers, guiding mechanisms, air system, etc. composition.
[0018] Calculate the mechanical performance requirements of the whole vehicle for the air spring system according to the three load conditions of the vehicle, namely no-load, half-load and full-load, and road conditions, and input them into the database 3, which includes the data of the whole vehicle and the characteristics of the air suspension system Data, performance data, characteristic data, geometric data, etc. of each component in the air suspension sy...
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The invention discloses a method for designing a rubber air chamber for an air spring of a vehicle. The method comprises the following steps: firstly, three geometric parameters of the radius of a central contour, the radius of a tangential point of a radial section and the cord bias angle of the central contour are calculated according to the bearing capacity and the elasticity of the air spring; secondly, the balanced profile of the rubber air chamber is drawn; thirdly, a three-dimensional model is established for the profile and a nonlinear three-dimensional finite element model of the air spring is established by the finite element method; and fourthly, optimized design of the rubber air chamber of the air spring system is completed by taking the minimum strain energy density of the rubber air chamber as an objective function. Database of the method can be updated continuously along with occurrence of a novel air spring and design completion of a novel air suspension system; and the method can meet the demands of design of the whole vehicle such as evenness, operation stability, riding comfort and so on and can guarantee that the air spring can meet the demands of the running performance of the vehicle.
Description
technical field [0001] The invention relates to a design method for main components of an air spring for vehicles, in particular to a matching design method for a rubber airbag of an air spring for vehicles. Background technique [0002] With the rapid development of domestic highways and the continuous improvement of people's living standards, higher requirements are put forward for the ride comfort of vehicles. Compared with leaf spring suspension, air suspension has the advantages of nonlinear stiffness, low natural vibration frequency and good high-frequency vibration isolation performance. Vehicle air suspension has become a research hotspot for automobile manufacturers and scientific researchers. The air suspension is mainly composed of air springs, shock absorbers and guide mechanisms, and the air spring is the key component of the air suspension's bearing and vibration reduction. It is mainly composed of rubber airbags, cover plates and pistons. There is an essentia...
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Inventor 袁春元周孔亢王国林李仲兴
Owner JIANGSU UNIV