Abstract
In this paper, a finite element model of membrane air spring in the vehicle is established, and its vertical stiffness characteristics under a certain inflation pressure are analysed. The result of finite element simulation method is compared with the result of the air spring bench test. The accuracy and reliability of the finite element simulation method in nonlinear analysis of air spring system are verified. In addition, according to the finite element method, the influence of the installation of the air spring limit sleeve on its stiffness is verified.
Highlights
As the air spring has great advantages in the vibration performance and energy storage and other aspects, relative to other elastic components, the air spring gains more and more popularity in consumers and developers of all ages
Based on the advantages above, the stiffness of a certain type of spring is analysed by finite element method, and the correctness of the analysis is proved by comparison with the experimental results
In order to control the deformation degree of the air spring balloon better, so as to obtain the air spring stiffness curve which is more in accordance with the actual situation, a more rigid limit sleeve made by aluminum alloy is set on the airbag surface
Summary
As the air spring has great advantages in the vibration performance and energy storage and other aspects, relative to other elastic components, the air spring gains more and more popularity in consumers and developers of all ages. The stiffness of the air spring is an important performance parameter involved in the design and application of air springs. Analysing the stiffness of the air spring with finite element method can take the impact of each parameter on the stiffness into account synthetically, greatly shortening the development cycle[1]. The finite element method has great theoretical and practical value for the research and analysis of air springs. Based on the advantages above, the stiffness of a certain type of spring is analysed by finite element method, and the correctness of the analysis is proved by comparison with the experimental results
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