Engineering Mechanics

International Conference

Proceedings Vol. 22 (2016)


ENGINEERING MECHANICS 2016

22nd INTERNATIONAL CONFERENCE
May 9 – 12, 2016, Svratka, Czech Republic
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Editors: Igor Zolotarev and Vojtěch Radolf

Copyright © 2016 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-59-8 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

TESTING OF CAR SUSPENSION WITH FAST MR DAMPER CONTROLLED BY MODIFIED GROUNDHOOK ALGORITHM
Strecker Z., Čípek P., Roupec J., Kubík M., Macháček O.
pages 559 - 562, full text

The paper describes a comparison of traditional passive suspension to a suspension with MR damper controlled by on/off Modified groundhook algorithm. The MR damper used in an experimental trolley together with current controller has exceptionally short time response of force on control signal – up to 1.5 ms. The MR damper was mounted into experimental trolley, which is scaled quarter suspension car model. The experimental trolley was riding on a road simulator over a bump. The suspension quality was evaluated according to the standard deviation of sprung mass acceleration (the lower value means higher comfort) and according to the standard deviation of force (the lower value means better grip). The results show that suspension system controlled by Modified groundhook algorithm outperforms passive system, but the level of improvement is dependent on the setting of current respectively damping in on and off state.


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