ASUPRA DURATEI DE VIATA A STRUCTURILOR PORTANTE ALE VEHICULELOR FEROVIARE

Autor/autori: S.l. dr. ing. Aurelia TANASOIU, Prof. dr. ing. Ion COPACI

Rezumat: Lucrarea contine date si concluzii referitoare la rezistenta structurilor portante a vehiculelor feroviare dobandite in cadrul activitatii Institutului de Cercetare si Proiectare Vagoane Arad in perioda de dupa 1970. Sunt remarcate totodata rezultate ale uzinelor „ASTRA” din Romania. Sunt abordate in lucrare probleme ce vizeaza rezistenta structurii portante a vehiculelor feroviare la solicitarea de soc repetat si la solicitarea aleatoare datorate excitatiei sistemului mecanic (vehicul) atribuite neregularitatilor caii de rulare sau imperfectiunilor geometriei de cale.

Cuvinte cheie: structura portanta, soc repetat, solicitare aleatoare.


Abstract: The paper contains data and conclusions pertaining to the resistance of bearing structures, data obtained from the activity of the Railway Car Research and Development Institute Arad in the years after 1970. Furthermore, the achievements of the ”ASTRA” factories in România are highlighted. Problems that regard the resistance of railway vehicle bearing structures to both repeated shock are treated as well as those that regard the random loads due to the excitation of the mechanical system (vehicle), attributed to railway irregularities or rail geometry imperfections.

Keywords: bearing structure, repeated shock, random stress

 

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