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2010, vol. 8, br. 3, str. 117-122
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Otkrivanje ravnih mesta na točkovima kao deo sistema za praćenje stanja železničkih vozila u saobraćaju
Flat wheel detection as a part of wayside train monitoring systems
aInstitute of Transportation, Vienna University of Technology, Austria bSaobraćajni institut 'CIP', Beograd
e-adresa: andreas.schoebel@tuwien.ac.at
Sažetak
Ravna mesta i druge nepravilnosti na površini kotrljanja točka opterećuju gornji stroj pruge i mogu da dovedu do skupih oštećenja. Dalje, u kritičnim situacijama kada dođe do istovremenog narastanja negativnih stanja železničkih vozila i/ili infrastrukture, ravna mesta mogu dovesti do teških nezgoda. Zato je rano otkrivanje ravnih mesta važan zadatak. U prošlosti su razvijeni sistemi davača koji koriste različite algoritme za procenu veličine i oblika ravnih mesta, a takođe imaju i različite karakteristike. Ali, čini se da većina od njih nije pogodna za procenu posledica koje izazivaju udari ravnih mesta. Stoga, autori ovog rada preporučuju korišćenje ekvivalenta uticaja ravnog mesta za sve nepravilnosti geometrije točka.
Abstract
Flat spots and other imperfections in wheel roundness stress the railway superstructure and can cause expensive damages. Moreover, in critical situations, where several disadvantageous conditions of railway vehicles and/or infrastructure arise at the same time, fl at spots may result in heavy accidents. Thus the early recognition of fl at spots is an important task. In the past sensor systems have been developed, which use different algorithms to estimate size and shape of the fl at spots as well as they use different types of specification. But most of them seem not be suitable to evaluate the consequences caused by the fl at spots' impacts. Thus, the authors of this article suggest usage of an effect-equivalent fl at spot for all imperfections of wheel geometry.
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