Active Lateral Secondary Suspension with H∞ Control to Improve Ride Comfort: Simulations on a Full-Scale Model
2011 (English)In: Vehicle System Dynamics, ISSN 0042-3114, Vol. 49, no 9, 1409-1422 p.Article in journal (Refereed) Published
In this study, a full-scale rail vehicle model is used to investigate how lateral ride comfort is influenced by implementing the H and sky-hook damping control strategies. Simulations show that significant ride comfort improvements can be achieved on straight track with both control strategies compared with a passive system. In curves, it is beneficial to add a carbody centring Hold-Off Device (HOD) to reduce large spring deflections and hence to minimise the risk of bumpstop contact. In curve transitions, the relative lateral displacement between carbody and bogie is reduced by the concept of H control in combination with the HOD. However, the corresponding concept with sky-hook damping degrades the effect of the carbody centring function. Moreover, it is shown that lateral and yaw mode separation is a way to further improve the performance of the studied control strategies.
Place, publisher, year, edition, pages
2011. Vol. 49, no 9, 1409-1422 p.
rail vehicle, active secondary suspension, ride comfort, simulations, full-scale model
Research subject Järnvägsgruppen - Gröna tåget; Järnvägsgruppen - Fordonsteknik
IdentifiersURN: urn:nbn:se:kth:diva-39472DOI: 10.1080/00423114.2010.527011ISI: 000299561600003ScopusID: 2-s2.0-79960832886OAI: oai:DiVA.org:kth-39472DiVA: diva2:439836
FunderTrenOp, Transport Research Environment with Novel Perspectives
QC 201109212011-09-092011-09-092012-04-02Bibliographically approved