Interconnected air spring model |
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| Authors: | Cor-Jacques Kat |
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| Affiliation: | Department of Mechanical and Aeronautical Engineering , University of Pretoria , Pretoria, South Africa |
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| Abstract: | This article considers the mathematical modelling of the spring force of three interconnected rolling diaphragm type air springs used on a 40-ton tri-axle semi-trailer. The aim of the air spring model is to obtain a validated mathematical model that can be used in full vehicle multi-body dynamic simulations. The model considers the flow effects in the pipes connecting the three air springs as well as the mass transfer between them. Comparisons with experimental results show that the proposed mathematical model of the interconnected air springs is indeed able to accurately predict the pressures and forces of the air springs. |
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| Keywords: | validated air spring model rolling diaphragm type air spring interconnected flow effects mass transfer |
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