NDLI: Active and semi-active control of uncertain railway wheelset

Content Provider	IEEE Xplore Digital Library
Author	Gajdar, T. Rudas, I.
Copyright Year	1995
Description	Author affiliation: Dept. of Railway Vehicles, Tech. Univ. Budapest, Hungary (Gajdar, T.)
Abstract	By increasing the operational speed of railway vehicles, dynamics and wear phenomena play a very important rule in the design phase of vehicle components; especially, attention should be paid to the most important part-the wheelsets. The other problems designers usually face include the field of parametric uncertainties of the wheelsets, such as geometrical and physical parameter uncertainties. It is obvious that certain barriers have to be taken in order to avoid unrequired dynamics and wear. Besides the aforementioned reasons, economy also plays a very important role in everyday operation, due to wheel damage. Recent studies show the effect of using active and semi-active control strategies on railway wheelsets. From an active control strategy, the applicability of robust H/sub /spl infin// control (RLQR) is examined, where the problem is solved as a direct state feedback problem, assuming that all state variables are available directly. From semi-active control strategies, the DSAD, DESAD and CSAD methods are presented and the so-called relative velocity compensation method is also considered. For practical purposes, the simple sky-hook compensation technique is also investigated, which is very challenging in railway vehicle applications. The nonlinear dynamic behaviour of controlled active and semi-active railway wheelsets is investigated by means of a numerical integration method.
Starting Page	69
Ending Page	74
File Size	555160
Page Count	6
File Format	PDF
ISBN	0780330269
DOI	10.1109/IECON.1995.483335
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-11-06
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rail transportation Vehicle dynamics Wheels Road vehicles Motion control Robust control Equations Creep Shock absorbers Damping
Content Type	Text
Resource Type	Article

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