NONLINEAR MODEL OF THE VEHICLE HYDROPNEUMATIC SUSPENSION UNIT
Keywords:
hydropneumatic suspension unit, rubber bellows air spring, mathematical modelAbstract
The lumped parameters model of the hydropneumatic suspension unit and its verification is described in the paper. The relations effective surface and volume of the rubber bellows air spring versus position and pressure and Bernoulli equation are used in the mathematical model of hydraulic part. The oil volume compression changes are considered negligible. The adiabatic state equation for the gas is used. The gas flow through the throttling injector is considered both in under and overcritical conditions. The static and dynamic characteristics of the whole unit and its parts were measured.
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(1) ŠKLÍBA, J.; BARBORA, J.; CIRKL, D. Hydropneumatický člen s paralelním řazením
hydraulického a pneumatického tlumení. In Proceedings of Interaction and Feedbacks
Prague: Institute of Thermomechanics AS CR, 2000. pp. 233 – 236. ISBN 80-
-58-7.
(2) BARBORA, J.; JANEČEK, B.; KUPKA, L.; ZŮBEK, T. Hydropneumatic Suspension
Rubber-bellows Unit. In Proceedings of Colloquium Euromech 455 on Semi-Active
Vibration Suppression [CD–ROM]. Prague: CTU, 2004. 13 p.
(3) BAUER, W. Hydropneumatic Suspensions Systems. 1st ed. Berlin – Heidelberg – New
York: Springer, 2011. ISBN 978-3-642-15146-0.
(4) HANUŠ, B.; OLEHLA, M.; MODRLÁK, O. Číslicová regulace technologických
procesů: algoritmy, matematicko-fyzikální analýza, identifikace, adaptace. Brno: BUT,
ISBN 80-214-1460-X.
(5) VESTFÁLOVÁ, M.; STŘEDA, I. Technická dynamika plynů. Liberec: TU, 2004.
(6) KUPKA L.: Vyhodnocení průběhů průtokových charakteristik elektropneumatického
servoventilu VEF 312 1–2. [Research report.] Liberec: TU, 2005.
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Copyright (c) 2020 Libor Kupka
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