A theoretical background to pneumatic suspension in semi-trailers is put forward which can be used for the calculation of the total weight of a vehicle and its axle. This information is essential for both static and dynamic analyses, and is an important factor in safety. The response of an air spring with a height control valve is characterised and the problem of different axle loads in a pneumatic suspension without a mechanical equaliser is studied in a triaxial tandem. An expression for the dynamic spring rate (stiffness coefficient) versus pressure and length is obtained for a commercial air spring.
Pneumatic suspensions in semi-trailers: Part I. General considerations and simplified models
Heavy Vehicle Systems ; 10 , 4 ; 295-308
2003
14 Seiten
Article (Journal)
English
Pneumatic suspensions in semi-trailers: part I - general considerations and simplified models
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